Callus paste for promoting walnut incision healing, preparation method and application

Abstract

The invention discloses callus paste for promoting walnut incision healing and a preparation method and application thereof, and relates to the technical field of walnut cultivation and protection. The callus cream is prepared from the following components in percentage by mass: 12-35% of an elastic film-forming matrix phase, 3-12% of a high water absorption / water release humidifying particle phase, 5-22% of a hydrophobic water-blocking microphase, 1-8% of a rheology and interface regulation phase, 5-20% of an osmotic pressure and water activity regulation phase and the balance of water, a preservative and the like, the film-forming matrix phase comprises a waterborne polyurethane-acrylate copolymer emulsion and modified polyvinyl alcohol or a polyvinyl alcohol-starch blend, the humidifying particle phase comprises cross-linked sodium carboxymethyl cellulose and cross-linked starch or alginate particles, and the hydrophobic microphase comprises beewax, microcrystalline wax, vegetable oil and rosin resin. The callus paste suitable for walnut incision protection under different weather conditions is obtained by sequentially preparing the functional phases and assembling the functional phases in a water-based system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of walnut cut protection, in particular to a healing paste for promoting the healing of walnut cuts, a preparation method and application. BACKGROUND

[0002] Walnut (J. sigillata Dode) is an important economic forest tree species. In the mode of intensive cultivation and high-density garden construction, pruning, main branch renewal, main stem retraction and disease spot scraping are often performed in winter or early spring, which is easy to form large pruning and sawing cuts and wounds on the main branches or main stems. When the operation is in the late dormant period to the pre-budding period, due to the high soil moisture content, root pressure and obvious transpiration tension change, the walnut cut is exposed and can produce sustained bleeding within a short time, resulting in a large amount of exudation of sap along the vessel and accumulation on the cut surface. Subsequently, with the rise of air temperature, the increase of wind force or the decrease of air humidity, the water on the surface of the cut evaporates quickly, and the periderm and xylem on the periphery are easy to shrink, induce stress concentration and appear radial cracking; on the contrary, in the plum rain season or under the condition of continuous overcast and rain, the cut is exposed to rain and high humidity environment for a long time, the residence time of sap and rainwater on the cut surface is prolonged, which is easy to form persistent wetting and hypoxia state, providing infection conditions for pathogenic fungi, causing black rot and even extending downward along the vessel, damaging the transport function and weakening the tree vigor. In order to avoid the related risks, the production practice often adopts the methods of avoiding the implementation of pruning in the significant bleeding period, reducing large section operation or using simple bandaging to deal with it. However, in the context of large-scale orchard or the need for centralized operation, it is difficult to balance the operation time, effective control of bleeding and guarantee of healing quality in the later period.

[0003] In order to promote the healing of fruit tree wounds, the existing technology has proposed various wound treatment agents and healing pastes, mainly including: closed coating materials mainly composed of paint or resin; waxy coating materials mainly composed of beeswax and lipids; and water-based healing agents based on water-based film-forming substances combined with bactericides and plant growth regulators. In addition, there are also solutions for bandaging large wounds using water-absorbing fibers or water-retaining materials. These methods have achieved certain results in reducing pathogen infection, relieving dry cracking or waterlogging, but their design is mainly for general fruit tree wounds, and the healing process is usually considered as a process with relatively constant water demand. The adaptability to walnut and other tree species with large sap flow during the bleeding period and susceptible to drought or high humidity and rainy environment fluctuations in the later period is limited. The coating materials with strong sealing properties are difficult to disperse and absorb a large amount of exudated sap in time, which easily causes the cut surface to be in a high humidity and low oxygen state for a long time; while the treatment agents mainly relying on water-based film-forming substances and a small amount of moisture-retaining components are easy to lose water quickly in a dry and hot environment, leading to dry shrinkage of the wound tissue, premature cracking of the film layer, and lack of effective dynamic regulation ability of the cut surface humidity in response to climate change and healing stage conversion. Thus, in some walnut orchards, there are adverse conditions such as excessive humidity in the early stage, excessive dryness in the later stage or repeated dry and wet alternation, which affect the healing speed and quality of the pruning and sawing cuts.

[0004] In addition, the method of using water-absorbing fibers or water-retaining materials to bandage large wounds can temporarily absorb wound flow, but the materials themselves lack film-forming property, adhesion and rainwater erosion resistance, and cannot actively adjust water release according to changes in environmental humidity, which can easily cause long-term dampness under the bandage or adhesion to the incision, causing secondary injury. Therefore, the prior art lacks a comprehensive wound paste that can closely adhere to the incision and adjust the humidity of the incision microenvironment according to the healing process and environmental changes.

[0005] Therefore, how to provide a wound treatment material that can match the humidity conditions of the incision with the wound flow and healing process for walnut cut and saw incisions and diseased area scraping is a technical problem that needs to be solved in the field. SUMMARY

[0006] (I) Technical problems to be solved In view of the deficiencies of the prior art, the present application provides a wound paste for promoting healing of walnut incisions, a preparation method and an application, which is composed of, in mass percentage, 12-35% of an elastic film-forming base phase, 3-12% of a high water-absorbing / water-releasing moisture-regulating particle phase, 5-22% of a hydrophobic water-blocking microphase, 1-8% of a rheological and interface regulating phase, 5-20% of an osmotic pressure and water activity regulating phase, and the balance of water and preservatives; the film-forming base phase includes water-based polyurethane-acrylate copolymer emulsion and modified polyvinyl alcohol or polyvinyl alcohol-starch blend, the moisture-regulating particle phase includes cross-linked sodium carboxymethyl cellulose and cross-linked starch or alginate microparticles, and the hydrophobic microphase includes beeswax, microcrystalline wax, vegetable oil and modified rosin resin.

[0007] By sequentially preparing each functional phase and assembling in an aqueous system, a wound paste suitable for protection of walnut incisions under different climate conditions is obtained; the technical problems described in the background art are solved.

[0008] (II) Technical solutions To achieve the above object, the present application is implemented by the following technical solutions: The wound paste for promoting healing of walnut incisions comprises, including, in mass percentage: elastic film-forming base phase component A: 12-35%, composed of water-based polyurethane-acrylate copolymer emulsion and modified polyvinyl alcohol or polyvinyl alcohol-starch blend; high water-absorbing / water-releasing moisture-regulating particle phase component B: 3-12%, composed of cross-linked sodium carboxymethyl cellulose particles and cross-linked starch or alginate microparticles; hydrophobic water-blocking microphase component C: 5-22%, composed of beeswax, microcrystalline wax, hydrogenated vegetable oil or fatty acid glyceride, and modified rosin resin or rosin glyceride; rheological and interface regulating phase component D: 1-8%, composed of cellulose thickening agent and non-ionic surfactant / wetting agent; osmotic pressure and water activity regulating phase component E: 5-20%, consisting of polyhydric alcohol humectants and nutrient and buffer salts; the rest is water and preservatives, antifoaming agents, coloring agents, accounting for the balance to 100%.

[0009] Further, in component A, the water-based polyurethane-acrylate copolymer emulsion accounts for 60-85% of the total amount of component A, the modified polyvinyl alcohol or polyvinyl alcohol-starch blend accounts for 10-30% of the total amount of component A, and the natural polysaccharide enhancer accounts for 0-20% of the total amount of component A.

[0010] Further, in the high water-absorbing / water-releasing moisture regulating granular phase component B, the total amount of cross-linked sodium carboxymethyl cellulose particles and cross-linked starch or alginate microparticles accounts for 60-100% of the total amount of component B, and the synthetic superabsorbent resin accounts for 0-40% of the total amount of component B.

[0011] Further, the hydrophobic water-blocking micro-phase component C includes a mixture of beeswax and microcrystalline wax, hydrogenated vegetable oil or fatty acid glyceride, and rosin modified resin or rosin glyceride, the mass ratio of beeswax to microcrystalline wax being 1:1-1:3, the mixture of beeswax and microcrystalline wax in the hydrophobic water-blocking micro-phase component C accounting for 30-60% of the total amount of component C, the hydrogenated vegetable oil or fatty acid glyceride accounting for 10-40% of the total amount of component C, the rosin modified resin or rosin glyceride accounting for 10-40% of the total amount of component C, and optionally containing a hydrophobic inorganic filler treated with silane, accounting for 0-30% of the total amount of component C.

[0012] Further, in the osmotic pressure and water activity regulating phase component E, the total content of polyhydric alcohol humectants in the balm is 5-18%, including glycerol, propylene glycol and sorbitol, glycerol accounting for 30-70% of the total amount of polyhydric alcohol humectants, and propylene glycol and sorbitol accounting for the balance; the nutrient and buffer salt is one or more of potassium dihydrogen phosphate, potassium citrate or potassium lactate, with a total content of 0.2-3%; the trace antioxidant is ascorbic acid, with a content of 0.05-0.5%; and the physiological promoter is one or more of gibberellin or indole butyric acid, with a content of 0.005-0.05% of the total mass of the balm.

[0013] Further, the high water-absorbing / water-releasing moisture regulating granular phase component B includes cross-linked sodium carboxymethyl cellulose particles and cross-linked alginate particles; the hydrophobic water-blocking micro-phase component C includes beeswax and rice bran wax as well as sunflower oil; the balm further includes diatomite, microcrystalline cellulose and bentonite as inorganic and fibrous fillers, glycerol and sorbitol as polyhydric alcohol humectants, amino acid chelated copper, amino acid chelated zinc, boric acid, salicylic acid, chitosan oligosaccharide, tea polyphenol powder and plant essential oil as functional active substances, and a food-grade preservative as a preservative.

[0014] The preparation method of the balm for promoting the healing of walnut cuts comprises: Step one, heating and dissolving modified polyvinyl alcohol in deionized water in a batching tank to obtain a base water phase, then adding water-based polyurethane-acrylate copolymer emulsion after cooling to form component A film-forming matrix; Step two, dissolving sodium carboxymethyl cellulose, starch or alginate in water, then adding crosslinking agent to crosslink into gel, drying, crushing and sieving to obtain crosslinked particles as component B; Step three, melting beeswax, microcrystalline wax, hydrogenated vegetable oil or fatty acid glyceride and rosin modified resin in a heating kettle, and high-speed shearing emulsification in component A to form component C; Step four, sequentially adding component D containing cellulose thickening agent and non-ionic interfacial active agent, component E containing polyol humectant and nutrient buffer salt, and component B particles in the system containing component A, and adding water, preservative, defoaming agent and colorant, stirring uniformly, defoaming to obtain the callus paste.

[0015] Further, the dissolution temperature of modified polyvinyl alcohol in step one is 60-70℃, and the dissolution time is 30-60 minutes; the crosslinking reaction temperature in step two is 40-80℃; the melting temperature of beeswax and microcrystalline wax in step three is 75-85℃, and the water phase temperature is 35-45℃ during emulsification in the main batching tank; and the pH of the finally obtained callus paste system is controlled at 5.0-7.5.

[0016] The application of a walnut incision callus paste in the protection treatment of walnut incision, the callus paste comprising an elastic film-forming matrix phase component A, a high water absorption / release moisture adjusting particle phase component B, a hydrophobic water blocking micro phase component C, a rheological and interface regulating phase component D, and a osmotic pressure and water activity adjusting phase component E, the application is to uniformly coat the callus paste on the incision surface and 2-3mm outside the incision within 30 minutes-3 hours after pruning in winter or early spring, summer pruning or grafting by using a brush or a scraper, the thickness of the paste layer is controlled at 0.5-2.0mm, the callus paste is solidified into a film under the conditions of ambient temperature 0-35℃ and relative humidity 35-95%, and is used for the protection treatment of walnut incision with a diameter of 2-7cm.

[0017] Further, the walnut incision is one of the following: a diameter of 3-5cm main branch renewal incision formed by early spring pruning, a diameter of 2-4cm incision formed by spring pruning, a diameter of 3-6cm incision formed by retraction pruning in plum rain season, or a diameter of 4-7cm incision formed by trunk retraction pruning from the end of winter to early spring.

[0018] (Three) beneficial effects The application provides a callus paste for promoting the healing of walnut incision, a preparation method and application, and has the following beneficial effects: Aiming at the contradiction that the sap flow is serious during pruning and disease spot scraping of walnut tree, the early stage is easy to lose liquid and the later stage is easy to dry crack, a self-adjusting wet healing paste system is proposed. The water-based film-forming matrix phase is formed by water-based polyurethane, acrylate emulsion and modified polyvinyl alcohol, which ensures the adhesion and flexibility of the cut surface and provides a moderate water vapor channel, so that the cambium can breathe normally and stretch with the tree. The high water absorption and moisture adjusting particle phase is composed of cross-linked carboxymethyl cellulose, polysaccharide or starch acrylate hydrogel particles, combined with osmotic adjusting components such as glycerol and sorbitol, which can quickly absorb and lock the sap and rainwater in the early stage of sap flow, reduce the loss of nutrients and surface wet rot, and slowly release water in the environment drying and healing stage, reduce tissue shrinkage and cracking. Porous inorganic fillers such as diatomite, bentonite and microcrystalline cellulose are distributed with beeswax, microcrystalline wax and plant oil in the waxy hydrophobic phase, which on the one hand improves the ability of the paste film to resist rainwater erosion and resist temperature difference cracking, and on the other hand provides a channel for water discharge when the hydrogel shrinks, thereby avoiding long-term wetting and rotting. The physiological active components such as amino acid chelated copper and zinc, boron source, salicylic acid and chitosan oligosaccharide are released in the above self-adjusting wet microenvironment, which can simultaneously inhibit bacteria, induce callus differentiation and suberization, so that the healing rate and healing quality of the cut surface under different ecological conditions are significantly better than those of single wax sealing type or single moisturizing type healing paste, which reflects the significant comprehensive technical effect and creativity brought by multiphase cooperation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The preparation method of the healing paste for promoting the healing of walnut cut surface of the present application is shown in the figure. Figure 2 The healing image of walnut cut surface for the test process; Figure 3 The use diagram of the Mem Tai thiabendazole type smearing agent; Figure 4 The healing paste use diagram in the present scheme, the figure shows that the non-cut surface wood part has produced cracks; Figure 5 The healing image of the cut surface of the market healing paste. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0021] Please refer to Figures 1 to 5 The present application provides a healing paste for promoting the healing of walnut cut surface, which can be summarized as follows in terms of mass percentage: Component A: elastic film-forming base phase, 12-35%; Component B: high water-absorbing / water-releasing moisture-regulating granular phase, 3-12%; Component C: hydrophobic water-blocking micro-phase, 5-22%; Component D: rheological and interface-regulating phase, 1-8%; Component E: osmotic pressure and water activity-regulating phase, 5-20%; the rest being water, a small amount of preservatives, antifoaming agents, colorants and other auxiliary components, the balance to 100%.

[0022] Through the synergy of A-E, the healing paste exhibits "partial moisture retention and dry-cracking prevention" in the early stage of walnut incision healing, and automatically transitions to "moderate moisture permeability and long-term wetting prevention" in the middle and late stages of healing.

[0023] Specifically as follows: Component A: elastic film-forming base phase: As the continuous phase skeleton of the entire healing paste, it ensures film formation, adhesion and flexibility; provides a basic channel for water migration, and together with Component B and Component C, controls the release rate of water to the outside world; by selecting a combination of water-based elastic polymer + water-soluble polymer, the film layer neither cracks nor collapses excessively.

[0024] Component A preferably includes the following sub-components: A1 water-based polyurethane-acrylate copolymer emulsion: The solid content is preferably 40-55%; the addition amount in the healing paste is 8-25%; the specific variety can be an emulsion obtained by copolymerizing aliphatic water-based polyurethane with butyl acrylate and methyl acrylate, which has a moderate carboxyl content and can form a flexible film layer at room temperature.

[0025] A2 modified polyvinyl alcohol or polyvinyl alcohol-starch blend: The addition amount is 2-10% by dry weight; it can be first prepared into an aqueous solution with a solid content of about 10-20%, and then added to the total system; by increasing the hydrogen bonding and water retention capacity, the adhesion and flexibility of the film layer are improved.

[0026] A3 natural polysaccharide enhancer: Such as xanthan gum, guar gum, locust bean gum, etc.; the addition amount is 0.5-5% by dry weight; it participates in film formation and also cooperates with Component D in rheological regulation.

[0027] In a typical scheme, the internal ratio of Component A can be: A1 accounts for 60-85% of the total amount of Component A; A2 accounts for 10-30% of the total amount of Component A; and A3 accounts for 0-20% of the total amount of Component A.

[0028] Component B: high water-absorbing / water-releasing moisture-regulating granular phase As "micro-reservoirs" and "humidity buffers", they absorb water and swell in wet environment, and release water in dry environment, thus mitigating the desiccation of the interface; preferably, they are distributed on the side close to the cut, so that the humidity buffering effect is concentrated around the callus.

[0029] Component B can be designed as composite particles, which are more creative and controllable than simple superabsorbent resin. Typical compositions include: B1 cross-linked sodium carboxymethyl cellulose particles The particle size is preferably 10-60 microns; the content in the finished callus paste is 1-6%; it is prepared by cross-linking in an aqueous phase with a small amount of multi-functional cross-linking agent (such as citric acid, maleic acid, etc.) and then drying, and has moderate water absorption and swelling capacity.

[0030] B2 cross-linked starch or alginate microparticles The particle size is preferably 20-80 microns; the content in the finished callus paste is 1-6%; the starch can be carboxymethyl starch or hydroxypropyl starch, and the alginate can be sodium alginate, which is obtained by cross-linking with calcium salt.

[0031] B3 a small amount of synthetic superabsorbent resin For example, low-residual acrylic acid salt-acrylamide copolymer powder; the content should be controlled at 0-3% in the finished callus paste, which is used to fine-tune the water absorption of the body and avoid environmental concerns caused by large amounts of use.

[0032] The preferred compounding ratio of component B is: The total amount of B1 and B2 accounts for 60-100% of component B; B3 accounts for 0-40% of component B.

[0033] The total amount of component B in the finished callus paste is controlled at 3-12%, so that it has a significant humidity regulating effect without damaging the film structure.

[0034] Component C: hydrophobic water-blocking micro-phase After the paste forms a film, a relatively hydrophobic continuous or semi-continuous phase is formed on the outer side; it resists direct erosion of rainwater and irrigation water, and slows down the loss of internal moisture to the outside; It interpenetrates with component A to prevent the formation of an independent hard shell that causes brittle fracture.

[0035] Component C can be composed of natural waxes, resins and hydrophobic fillers, such as: C1 mixture of beeswax and microcrystalline wax The mass ratio of the two is preferably 1:1-1:3; they are added in a molten state or first prepared into a wax emulsion; the content of C1 in the finished callus paste is 2-10%.

[0036] C2 hydrogenated vegetable oil or fatty acid glyceride Hydrogenated soybean oil, glycerol stearate, etc.; used to improve flexibility and low-temperature brittleness; C2 content in finished healing paste: 1-8%.

[0037] C3 rosin-modified resin or rosin glyceride Used as tackifying resin while improving hydrophobicity; C3 content in finished healing paste: 1-8%.

[0038] C4 hydrophobic inorganic filler Such as silane-treated talc powder, wollastonite, magnesium hydroxide powder, etc.; used alone or in mixture, content in finished healing paste: 1-8%; both reinforcing the film layer and fine-tuning the rheology.

[0039] In a preferred formulation, the typical proportions of component C can be: C1 accounts for 30-60% of component C; C2 accounts for 10-40% of component C; C3 accounts for 10-40% of component C; C4 accounts for 0-30% of component C.

[0040] The total amount of component C is controlled at 5-22% in the finished healing paste.

[0041] Component D: rheology and interface control phase Adjust the flowability and thixotropy of the healing paste during construction to make it easy to apply, not to drip, and to form sufficient thickness on vertical sections; Improve the wetting and adhesion of the paste to fresh walnut cuts (including the surface with a small amount of sap), avoid hollowing and falling off; Stabilize the A, B, C, E multi-phase system to prevent delamination or severe sedimentation during storage.

[0042] D1 cellulose thickener Such as hydroxyethyl cellulose, hydroxypropyl methyl cellulose, etc.; content in finished healing paste calculated from dry powder: 0.2-2.5%; control the basic viscosity by adjusting the amount of addition.

[0043] D2 high molecular polysaccharide thickener Such as xanthan gum, locust bean gum, carrageenan, etc.; content in finished healing paste calculated from dry powder: 0.1-1.5%; cooperate with D1 to form obvious thixotropy.

[0044] D3 surfactant / wetting agent Preferably non-ionic, such as fatty alcohol polyoxyethylene ether, alkyl polyglycoside; content in finished healing paste: 0.2-2%; used to improve the wetting and emulsion stability of the paste to wood cuts.

[0045] D4 adhesion-enhancing resin (can be used with C3) Such as rosin glyceride, terpene resin, etc.; content: 0.5-3%.

[0046] The total content of component D in the finished healing paste is controlled at 1-8%, wherein the total amount of D1+D2 preferably accounts for 40-80% of component D.

[0047] Component E: Osmotic pressure and water activity adjustment phase By using polyols and soluble salts, a mild osmotic pressure and water activity gradient is established in the film layer, so that the incision interface is neither excessively dry nor in a near-pure water state for a long time; Part of the polyols gradually migrate, volatilize or are absorbed by plants within several days to several weeks, naturally changing the hydrophilicity inside the film layer, and realizing the time evolution from "moisture preservation to moisture permeability"; By appropriately selecting salts with buffering capacity, the local microenvironment is maintained in a slightly acidic range conducive to healing.

[0048] E1 Polyol Moisturizer Such as glycerol, propylene glycol, sorbitol, etc., which can be used alone or in combination; the content in the total amount of the finished healing paste: 5-18%; wherein glycerol preferably accounts for 30-70% of the total amount of polyols, and sorbitol and propylene glycol account for the balance.

[0049] E2 Nutrient and Buffering Salt Such as potassium dihydrogen phosphate, potassium citrate, potassium lactate, etc., which can be used alone or in combination; the total content in the finished healing paste: 0.2-3%; through its solubility and buffering capacity, it assists in adjusting the local pH and osmotic pressure.

[0050] E3 Trace Antioxidants or Physiological Promoting Substances Such as ascorbic acid, a small amount of gibberellin, indole butyric acid, etc.; the content of ascorbic acid can be controlled at 0.05-0.5%; the content of plant growth regulators is controlled at 0.005-0.05% of the total mass of the healing paste, and a pre-dilution addition method is adopted to avoid local high concentration.

[0051] The total content of component E in the finished healing paste is controlled at 5-20%.

[0052] Auxiliary components and water: Preservatives: such as phenoxyethanol, isothiazolinone, etc., controlled at 0.05-0.5%; antifoaming agents: such as polyether antifoaming agents, silicone oil antifoaming agents, content 0.05-0.3%; colorants: inorganic pigments such as iron oxide red or iron oxide green, total amount 0.1-3%, used to enhance the on-site visibility; water: supplemented to 100%, the amount is generally 30-65%, depending on the solid content of A-E.

[0053] Preparation method: Preparation of component A: Put the water-based polyurethane-acrylate emulsion into a mixing tank and start stirring; gradually add the previously dissolved polyvinyl alcohol solution and a small amount of natural polysaccharide, control the stirring speed to be moderate, until a uniform milky white base liquid is formed.

[0054] Preparation of component B particles: In another container, dissolve sodium carboxymethyl cellulose, modified starch or sodium alginate in water; under stirring, add the crosslinking agent solution, maintain a certain temperature for crosslinking reaction, form a gel block; dry the gel block, crush and sieve to obtain crosslinked particles of the desired particle size; if a small amount of synthetic superabsorbent resin is needed, it can be dry-mixed with the crosslinked particles in proportion and used.

[0055] Preparation of component C: In a heating kettle, heat beeswax, microcrystalline wax, hydrogenated vegetable oil and rosin resin together until they are all melted and well mixed; a small amount of hydrophobic inorganic filler can be added and dispersed well; cool to near semi-solid state, then form a fine wax dispersion phase by emulsification method (high-speed shearing in component A base liquid).

[0056] Preparation of component D: Disperse cellulose thickener and polysaccharide thickener in part of deionized water, stir until completely hydrated; then add surfactant and adhesion-enhancing resin, continue stirring to obtain a rheology-adjusted premix.

[0057] Preparation of component E: Dissolve polyol in an appropriate amount of water with stirring; add potassium dihydrogen phosphate, potassium citrate and other salts and dissolve thoroughly; if ascorbic acid or plant growth regulator is needed, it can be dissolved in a small amount of polyol or water at low temperature to avoid decomposition.

[0058] Total assembly and adjustment: In the base liquid containing component A, add component D premix, component E solution in sequence, stir until uniform; slowly add component B particles under moderate stirring to disperse uniformly; then add the emulsified component C dispersion, continue stirring until the system is uniform; finally, add water, preservative, defoamer and colorant as needed, adjust to the desired paste consistency and color; after standing and defoaming or vacuum defoaming, the callus paste for coating is obtained.

[0059] Referring to the following examples, when preparing on an industrial scale, the water amount and filler content can be adjusted appropriately within the above range according to the shearing capacity of the actual stirring equipment and the desired coating consistency, to ensure that the paste neither runs nor is difficult to brush. Example 1:

[0060] Method for preparing self-moisturizing basic walnut cut callus paste Formula - Mass parts: Polyurethane emulsion 18.0; Acrylate elastomer emulsion 10.0; Modified polyvinyl alcohol dry powder 2.0; Starch-acrylate superabsorbent particles 6.0; Crosslinked sodium carboxymethyl cellulose particles 2.0; Beeswax 6.0; Carnauba wax 3.0; Linseed oil 3.0; Microcrystalline wax 2.0; Diatomite 8.0; Microcrystalline cellulose 3.0; Amino acid chelated copper 0.7; Amino acid chelated zinc 0.3; Boric acid 0.15; Salicylic acid 0.10; Chitosan oligosaccharide 0.30; Glycerol 2.0; Propylene glycol 2.0; Preservative 0.20; Defoamer 0.10; Deionized water 31.15.

[0061] Step one: Dissolve modified polyvinyl alcohol to form the base aqueous phase Add about two-thirds of the formula amount of deionized water to the batching tank, for example, add about 20 kg of water for a 100 kg product. Turn on low-speed stirring (anchor or paddle stirrer, speed about 80-120 rpm), heat the jacket or external heating to raise the temperature in the tank to 60-70°C. Under continuous stirring conditions, slowly and evenly sprinkle in 2.0 parts by mass of modified polyvinyl alcohol dry powder, control the sprinkling time to be 15-30 minutes to avoid instantaneous clumping.

[0062] Keep the temperature at 60-70°C and medium-speed stirring (about 150-250 rpm) for 30-60 minutes until no undissolved particles are visible in the system, obtaining a uniform transparent or translucent polyvinyl alcohol aqueous solution. Cool to 40-50°C, add 2.0 parts by mass of glycerol and 2.0 parts by mass of propylene glycol, continue stirring for 10-20 minutes to evenly disperse the polyols in the aqueous phase.

[0063] Step two: Add water-based polyurethane emulsion and acrylate emulsion to build the film-forming matrix At 40-50°C, keep stirring, slowly add 18.0 parts by mass of water-based polyurethane emulsion, control the addition time to be 10-20 minutes to avoid a sudden increase in local viscosity. After the addition is complete, continue stirring for 15-30 minutes to fully mix the polyurethane emulsion with the aqueous phase. Then slowly add 10.0 parts by mass of acrylate elastomer emulsion, also control the addition to be completed in 10-20 minutes, continue stirring for 15-30 minutes to obtain a uniform aqueous film-forming matrix. At this time, measure the system temperature as needed to control it at 35-45°C to create conditions for subsequent emulsification of the wax phase.

[0064] Step three: Prepare the wax oil phase and emulsify and disperse In another stainless steel kettle, add 6.0 parts by mass of beeswax, 3.0 parts by mass of carnauba wax, 2.0 parts by mass of microcrystalline wax, and 3.0 parts by mass of linseed oil. Turn on the stirring of the kettle (about 100-200 revolutions per minute), heat to 75-85 degrees Celsius until the waxes are completely melted and form a transparent or uniform molten liquid with the linseed oil. Keep the temperature at 75-85 degrees Celsius for 10-15 minutes to ensure no solid residue, then turn off the heat and keep the temperature above 70 degrees Celsius for standby.

[0065] In the main ingredient tank, increase the stirring speed to medium-high speed (about 300-600 revolutions per minute, and if there is a high-shear emulsifier, turn it on), then slowly add the above molten wax oil phase along the tank wall, controlling the addition time to be 10-20 minutes. Keep the stirring intensity high during the addition process to shear the wax oil phase into fine droplets and uniformly disperse them in the aqueous film-forming matrix. After the addition of the wax oil phase, maintain medium-high speed stirring for 20-40 minutes, gradually cool to 35-40 degrees Celsius, and obtain a fine wax droplet emulsion system.

[0066] Step Four: Add inorganic porous filler and fiber material to adjust the paste skeleton At 35-40 degrees Celsius, reduce the stirring to medium speed (about 200-350 revolutions per minute), slowly add 8.0 parts by mass of diatomite in batches, with each batch being about one-fourth of the total amount, and add in 4 times, stirring for at least 5-10 minutes after each addition to ensure no obvious agglomeration. Then add 3.0 parts by mass of microcrystalline cellulose in the same way, continue stirring for 20-30 minutes to ensure uniform dispersion and form a paste with certain structural strength. If local agglomeration is found, the stirring speed can be appropriately increased for a short time, or a wall scraping device can be used to assist in dispersion.

[0067] Step Five: Cool down and add superabsorbent particles and functional active components Continue to cool naturally or through the cooling water jacket to reduce the system temperature to 25-30 degrees Celsius to prevent the subsequent superabsorbent particles from swelling excessively at high temperatures. Under low to medium speed stirring (about 150-250 revolutions per minute), slowly and evenly sprinkle in 6.0 parts by mass of starch-acrylate superabsorbent particles and 2.0 parts by mass of cross-linked sodium carboxymethyl cellulose particles, with the sprinkling time controlled at 15-30 minutes. Keep stirring during the sprinkling process to ensure uniform wetting and initial dispersion of the particles, but avoid extremely high shear to prevent particle breakage. Then add 0.7 parts by mass of amino acid chelated copper, 0.3 parts by mass of amino acid chelated zinc, 0.15 parts by mass of boric acid, 0.10 parts by mass of salicylic acid, and 0.30 parts by mass of chitosan oligosaccharide, which have been previously dissolved or dispersed in a small amount of warm water, and continue stirring for 20-30 minutes.

[0068] Step Six: Add water, preservatives and defoamers, and adjust the finished product Check the paste consistency, if it is too thick, add the rest of the deionized water in batches while stirring until the planned total amount of 31.15 parts by mass is reached. Add 0.20 parts by mass of preservative and 0.10 parts by mass of defoaming agent, stir for 10-20 minutes to allow them to disperse fully. Stop heating, maintain stirring for 10 minutes, then stop stirring and allow the system to stand for 30-60 minutes to degas, if possible, use a light vacuum to degas. Check the appearance of the paste, which should be a uniform and fine paste without flowing, no obvious clumping and stratification, which is the finished product of Example 1 of the callus paste. Example 2:

[0069] Preparation method of enhanced moisturizing type in arid windy area Formula-mass parts: water-based polyurethane emulsion 16.0; acrylate elastic emulsion 9.0; modified polyvinyl alcohol dry powder 3.0; starch-acrylate super absorbent particles 8.0; crosslinked sodium carboxymethyl cellulose particles 3.0; beeswax 5.0; carnauba wax 2.0; linseed oil 4.0; microcrystalline wax 1.0; diatomite 6.0; microcrystalline cellulose 2.0; bentonite 2.0; glycerol 4.0; sorbitol 3.0; amino acid chelated copper 0.5; amino acid chelated zinc 0.2; boric acid 0.15; salicylic acid 0.10; chitosan oligosaccharide 0.30; preservative 0.20; defoaming agent 0.10; deionized water 30.45.

[0070] Step one: establishment of the base water phase and film-forming matrix Add about two-thirds of the deionized water to the batching tank, about 20 kilograms for 100 kilograms of finished product. Heat to 60-70 degrees Celsius, slowly add 3.0 parts by mass of modified polyvinyl alcohol dry powder under low-speed stirring, dissolve until no particles. Cool to 45-50 degrees Celsius, add 4.0 parts by mass of glycerol and 3.0 parts by mass of sorbitol, stir for 15 minutes. At 40-45 degrees Celsius, add 16.0 parts by mass of water-based polyurethane emulsion and 9.0 parts by mass of acrylate elastic emulsion in turn, the addition time of each emulsion is controlled in 10-20 minutes, stir until a uniform emulsion matrix is formed.

[0071] Step two: preparation and emulsification of wax oil phase In a small kettle, add 5.0 parts by mass of beeswax, 2.0 parts by mass of carnauba wax, 1.0 part by mass of microcrystalline wax and 4.0 parts by mass of linseed oil, heat to 75-85 degrees Celsius and stir to melt. Keep warm for 10-15 minutes, confirm complete melting, then slowly add the wax oil phase in the main tank under high-speed stirring to form fine wax droplets dispersed. Continue stirring at medium and high speed for 20-30 minutes to fully emulsify the wax phase, then reduce the temperature to about 35-40 degrees Celsius.

[0072] Step three: establishment of filler and rheological structure Under the condition of moderate stirring, 6.0 parts by mass of diatomite, 2.0 parts by mass of microcrystalline cellulose and 2.0 parts by mass of bentonite are added in batches. After each addition, the mixture is stirred for at least 10 minutes to prevent the formation of dead corner agglomerates. After the fillers are uniformly dispersed and the paste is substantially formed, the stirring is continued for 15-20 minutes to check whether the paste is in a uniform and fine state.

[0073] Step four: addition of moisture retention and conditioning particles and active ingredients The system is cooled to 25-30 degrees Celsius, and 8.0 parts by mass of starch-acrylate superabsorbent particles and 3.0 parts by mass of crosslinked carboxymethyl cellulose particles are slowly added in 3-4 portions under low to moderate stirring. After each addition, the mixture is stirred for 5-10 minutes to ensure uniform wetting and dispersion of the particles. Then, 0.5 parts by mass of amino acid chelated copper, 0.2 parts by mass of amino acid chelated zinc, 0.15 parts by mass of boric acid, 0.10 parts by mass of salicylic acid and 0.30 parts by mass of chitosan oligosaccharide are added, and the mixture is stirred for 20-30 minutes.

[0074] Step five: water replenishment, addition of preservatives and defoamers, and product adjustment The remaining deionized water is added to make the total amount 30.45 parts by mass, and the mixture is stirred while adding the water. The paste is adjusted to a state that is neither too thin to flow nor too hard to be scraped. Then, 0.20 parts by mass of preservatives and 0.10 parts by mass of defoamers are added, and the mixture is stirred for 10-15 minutes. After standing or light vacuum degassing for 30-60 minutes, the uniformity and fineness of the paste are checked, and the product is packaged after passing the quality inspection. Example 3:

[0075] Preparation method of long-term wetting-resistant type in high-humidity and rainy areas Formula - parts by mass: waterborne polyurethane emulsion 17.0; acrylate elastic emulsion 11.0; modified polyvinyl alcohol dry powder 1.5; starch-acrylate superabsorbent particles 4.0; crosslinked carboxymethyl cellulose sodium particles 1.0; beeswax 8.0; carnauba wax 4.0; tung oil 3.0; polyethylene wax 2.0; diatomite 10.0; microcrystalline cellulose 4.0; perlite powder 3.0; glycerol 1.5; propylene glycol 1.5; amino acid chelated copper 0.6; amino acid chelated zinc 0.3; boric acid 0.15; salicylic acid 0.10; chitosan oligosaccharide 0.30; broad-spectrum fungicide wettable powder 1.0; preservatives 0.20; defoamers 0.10; deionized water 25.75.

[0076] Step one: base water phase and film-forming matrix Add about two-thirds of the deionized water (about 17 kg for 100 kg of finished product) to the ingredient tank and heat to 60-65 degrees Celsius. Slowly add 1.5 parts by mass of modified polyvinyl alcohol dry powder under low-speed stirring, and stir to dissolve for 30-40 minutes until there are no particles. Cool to 40-45 degrees Celsius, add 1.5 parts by mass of glycerol and 1.5 parts by mass of propylene glycol, and stir for 10-15 minutes. At 40-45 degrees Celsius, first add 17.0 parts by mass of water-based polyurethane emulsion, stir until uniform, then add 11.0 parts by mass of acrylate elastomer emulsion, each emulsion added for 10-15 minutes, and then continue stirring for 20-30 minutes.

[0077] Step two: preparation and emulsification of wax oil phase In the wax phase kettle, add 8.0 parts by mass of beeswax, 4.0 parts by mass of carnauba wax, 2.0 parts by mass of polyethylene wax, and 3.0 parts by mass of tung oil, and stir to heat to 80-90 degrees Celsius to completely melt the waxes and tung oil. Keep warm for 10 minutes and confirm that the system is clear and uniform. Increase the stirring speed of the main tank to medium-high speed, and slowly add the above molten wax oil phase along the tank wall while maintaining the temperature of the main tank at 35-45 degrees Celsius, and control the addition to be completed within 10-20 minutes.

[0078] Maintain medium-high speed stirring for 30 minutes to form stable and fine emulsion droplets in the wax phase, and then gradually cool to 35-40 degrees Celsius.

[0079] Step three: addition of porous filler Under medium-speed stirring, add 10.0 parts by mass of diatomite, 4.0 parts by mass of microcrystalline cellulose, and 3.0 parts by mass of perlite powder in batches, and each filler is added in 3-4 times. Stir for 8-10 minutes after each addition to ensure that there are no obvious clumps and floating blocks, and the final paste is uniform and fine.

[0080] Step four: addition of superabsorbent particles and fungicide functional phase Cool the system to 25-30 degrees Celsius, maintain low to medium speed stirring, slowly sprinkle in 4.0 parts by mass of starch-acrylate superabsorbent particles and 1.0 parts by mass of crosslinked carboxymethyl cellulose particles, and stir for 15-20 minutes to evenly disperse the particles. Take a small amount of warm water, pre-wet and evenly disperse 1.0 parts by mass of broad-spectrum fungicide wettable powder, and then slowly add it to the main tank, and stir for 15-20 minutes to avoid excessive local concentration. At the same time, add 0.6 parts by mass of amino acid chelated copper, 0.3 parts by mass of amino acid chelated zinc, 0.15 parts by mass of boric acid, 0.10 parts by mass of salicylic acid, and 0.30 parts by mass of chitosan oligosaccharide, which have been dissolved in advance, and continue to stir for 20-30 minutes.

[0081] Step five: water supplementing and final adjustment Add the remaining deionized water to make the total amount of 25.75 parts by mass. Add 0.20 parts by mass of preservative and 0.10 parts by mass of defoaming agent, and stir for 10-15 minutes. After standing for 30-60 minutes or after light vacuum degassing, the paste product suitable for high-humidity and rainy areas is obtained. Example 4:

[0082] Preparation method of anti-cracking self-humidifying type for low-temperature and large-temperature-difference areas Formula - parts by mass: water-based polyurethane emulsion 22.0; acrylate elastic emulsion 9.0; modified polyvinyl alcohol dry powder 2.5; starch-acrylate super absorbent particles 5.0; crosslinked sodium carboxymethyl cellulose particles 2.0; beeswax 5.0; microcrystalline wax 3.0; rapeseed oil 4.0; diatomite 7.0; microcrystalline cellulose 3.0; bentonite 3.0; glycerol 3.0; propylene glycol 2.0; sorbitol 2.0; amino acid chelated copper 0.6; amino acid chelated zinc 0.25; boric acid 0.15; salicylic acid 0.10; chitosan oligosaccharide 0.30; preservative 0.20; defoaming agent 0.10; deionized water 25.8.

[0083] Step one: base water phase and film-forming matrix In the batching tank, about 18 kilograms of deionized water (based on 100 kilograms of finished product) is added and heated to 60-70 degrees Celsius. Slowly add 2.5 parts by mass of modified polyvinyl alcohol dry powder and stir for 30-50 minutes until clear and free of particles.

[0084] Cool to 45-50 degrees Celsius, add 3.0 parts by mass of glycerol, 2.0 parts by mass of propylene glycol, and 2.0 parts by mass of sorbitol, and stir for 15-20 minutes. At 40-45 degrees Celsius, first add 22.0 parts by mass of water-based polyurethane emulsion, then add 9.0 parts by mass of acrylate elastic emulsion, stirring evenly for 10-20 minutes for each emulsion, and then stirring for 20-30 minutes to make the system uniform.

[0085] Step two: preparation and emulsification of wax oil phase In a small kettle, add 5.0 parts by mass of beeswax, 3.0 parts by mass of microcrystalline wax, and 4.0 parts by mass of rapeseed oil, heat to 70-80 degrees Celsius, and stir until completely melted. To avoid excessive oxidation of vegetable oil, the high-temperature holding time should be as short as possible, preferably about 10 minutes. Increase the stirring speed of the main tank to medium-high speed, and slowly add the above-mentioned molten wax oil phase, controlling the addition time to be 10-15 minutes. Continue stirring at medium-high speed for 20-30 minutes, and then slowly cool to 35-40 degrees Celsius.

[0086] Step three: filler and rheological structure Under the condition of 35-40 Celsius degrees and medium stirring speed, 7.0 parts by mass of diatomite, 3.0 parts by mass of microcrystalline cellulose and 3.0 parts by mass of bentonite are added batch by batch, and after each addition, the stirring is continued for 8-12 minutes. After the paste assumes a uniform and slightly thixotropic state, the stirring speed can be adjusted to prevent the introduction of too many air bubbles.

[0087] Step four: addition of superabsorbent particles and functional ingredients After cooling to 25-30 Celsius degrees, 5.0 parts by mass of starch-acrylate superabsorbent particles and 2.0 parts by mass of crosslinked carboxymethyl cellulose particles are slowly added under low to medium stirring speed over a period of 15-25 minutes. The stirring is continued for 20 minutes to ensure uniform distribution of the particles in the system. 0.6 parts by mass of amino acid chelated copper, 0.25 parts by mass of amino acid chelated zinc, 0.15 parts by mass of boric acid, 0.10 parts by mass of salicylic acid and 0.30 parts by mass of chitosan oligosaccharide are dissolved or dispersed in a small amount of warm water and slowly added to the main tank, and the stirring is continued for 20-30 minutes.

[0088] Step five: water addition and final treatment The remaining amount of deionized water is added to achieve a total amount of 25.8 parts by mass. 0.20 parts by mass of preservative and 0.10 parts by mass of defoamer are added, and the stirring is continued for 10-15 minutes. After standing or light vacuum degassing for 30-60 minutes, a self-moisturizing healing paste suitable for large temperature difference areas is obtained. Example 5:

[0089] Preparation method of green and environmentally friendly side emphasis type Formula - parts by mass: waterborne polyurethane emulsion 15.0; acrylate elastic emulsion 8.0; modified starch-based tackifier 4.0; crosslinked carboxymethyl cellulose sodium particle 4.0; crosslinked alginate particle 4.0; beeswax 7.0; rice bran wax 3.0; sunflower oil 4.0; diatomite 9.0; microcrystalline cellulose 4.0; bentonite 2.0; glycerol 4.0; sorbitol 3.0; amino acid chelated copper 0.4; amino acid chelated zinc 0.2; boric acid 0.15; salicylic acid 0.10; chitosan oligosaccharide 0.50; tea polyphenol powder 0.30; plant essential oil 0.20; food-grade preservative 0.20; defoamer 0.10; deionized water 26.85.

[0090] Step one: base water phase and film-forming base About 18-20 kg of deionized water is added to the batching tank and heated to 55-65 Celsius degrees. Under stirring, 4.0 parts by mass of modified starch-based tackifier (such as hydroxypropyl starch or dextrin) is slowly added, and the stirring is continued for 30-40 minutes until complete dissolution or uniform dispersion. The temperature is lowered to 40-45 Celsius degrees, 4.0 parts by mass of glycerol and 3.0 parts by mass of sorbitol are added, and the stirring is continued for 15 minutes.

[0091] At 40-45 degrees Celsius, first add 15.0 parts by mass of water-based polyurethane emulsion, stir evenly, then add 8.0 parts by mass of acrylate elastomer emulsion, continue stirring for 20-30 minutes to form a stable film-forming matrix. Add hydroxyethyl cellulose and modified polyvinyl alcohol together and hydrate fully at 60-70 degrees Celsius. The modified polyvinyl alcohol is preferably a medium or low alcoholysis degree or partially saponified product, which can be completely dissolved at 60-75 degrees Celsius; for high alcoholysis degree products, the dissolution temperature can be appropriately increased to about 80 degrees Celsius.

[0092] Step two: preparation and emulsification of wax oil phase In the wax phase kettle, add 7.0 parts by mass of beeswax, 3.0 parts by mass of rice bran wax, and 4.0 parts by mass of sunflower oil, heat to 75-85 degrees Celsius, and stir until completely melted. To maintain the quality of vegetable oil, try to operate below 85 degrees Celsius, and the holding time is controlled at 10-15 minutes. Increase the stirring speed of the main tank to medium-high speed, slowly add the melted wax oil phase to the main tank, and control the addition time to 10-15 minutes.

[0093] Continue stirring at medium-high speed for 20-30 minutes, then cool to 35-40 degrees Celsius to form a stable emulsion dispersion of the wax oil phase. When the wax oil phase is in contact with the water phase, the temperature of the water phase should not be lower than 30 degrees Celsius to avoid instantaneous solidification of the wax phase to form large particles; at the same time, through high-speed shearing, the particle size of the wax phase is controlled within 1-50 microns.

[0094] Step three: inorganic filler and rheological skeleton At 35-40 degrees Celsius and medium speed stirring, add 9.0 parts by mass of diatomite, 4.0 parts by mass of microcrystalline cellulose, and 2.0 parts by mass of bentonite in batches, and stir for 8-12 minutes after each addition. Until the paste appears uniform, delicate and has a certain yield stress.

[0095] Step four: adding cross-linked polysaccharide superabsorbent particles Cool to 25-30 degrees Celsius, slowly add 4.0 parts by mass of cross-linked sodium carboxymethyl cellulose particles and 4.0 parts by mass of cross-linked alginate particles under low to medium speed stirring conditions, and the scattering time is controlled at 15-25 minutes. Stir for 20-30 minutes to evenly distribute the particles in the paste, and pay attention to avoid excessive shearing damage to the particle structure.

[0096] Step five: adding functional active substances and food-grade preservative system A small volume of solution is prepared with a small amount of warm water, 0.4 parts by mass of amino acid chelated copper, 0.2 parts by mass of amino acid chelated zinc, 0.15 parts by mass of boric acid, 0.10 parts by mass of salicylic acid, and 0.50 parts by mass of chitosan oligosaccharide are dissolved or sufficiently dispersed, slowly added to the main tank, and stirred for 20 minutes. 0.30 parts by mass of tea polyphenol powder is dispersed in a small amount of warm water or polyol to avoid agglomeration caused by direct dry powder addition, slowly added to the main tank, and stirred for 10-15 minutes. All heat-sensitive functional ingredients (including ascorbic acid, tea polyphenols, plant essential oils, plant growth regulators, etc.) are added when the system cools to not higher than 35 degrees Celsius to avoid thermal decomposition.

[0097] 0.20 parts by mass of plant essential oil (such as thyme essential oil or clove essential oil) is pre-emulsified with a small amount of glycerol or vegetable oil, then added to the main tank and stirred for 10-15 minutes to achieve better dispersibility and reduce local irritation to plant tissues. 0.20 parts by mass of food-grade preservative (such as potassium sorbate solution) and 0.10 parts by mass of defoaming agent are added and stirred for 10-15 minutes.

[0098] Step six: water replenishment and final treatment According to the consistency of the paste, deionized water is added in batches to make the total amount reach 26.85 parts by mass, and stirred until the paste reaches a suitable consistency for brushing or spreading without dripping. After standing for 30-60 minutes or light vacuum degassing, the paste uniformity and appearance are checked, and the green environmental protection focused self-moistening callus paste finished product is obtained.

[0099] For the above several embodiments, it is finally necessary to supplement that when the total content of moisture regulating particles is less than 3% of the mass of the finished product, the moisture regulating effect is not obvious; when it is higher than 15%, the paste film mechanical strength decreases, local swelling is serious, and it is easy to produce bulges or cracks, and the preferred range can also be 3-12%. The total amount of polyol is generally controlled at 3-15%, and the preferred range of this scheme is 4-12%; when preparing the base water phase, the non-ionic surfactant is also added, so that it is first dissolved in the water phase, and then emulsified in the wax phase. After all components are added and fully stirred, the pH of the system is measured, and it is generally controlled at 5.0-7.5. If the pH is lower than 5.0, a small amount of ammonia water or triethanolamine can be used for adjustment; if the pH is higher than 7.5, dilute acetic acid or citric acid solution can be used for adjustment. Experimental Example 1

[0100] Comparison of healing effects in conventional climate zones (corresponding to Example 1) 1. Experimental conditions and grouping Location: conventional walnut production area, annual average temperature 12-16 degrees Celsius, no extreme drought or extreme rain. Tree age: 8-10 year-old walnut trees. Cut type: main branch renewal cuttings formed by early spring pruning, cut diameter 3-5 cm, a total of 120 healthy branches selected. Application time: mid-March, within 2 hours after pruning.

[0101] Grouping: 1) Invention group: self-moisturizing healing paste prepared with the formulation of Example 1, scraped and coated to cover the entire cut surface and 2-3 mm of the outer edge. 2) Control group 1: commercially available conventional paint-type healing paste (mainly paraffin and paint resin), applied according to the instructions. 3) Blank group: no healing paste was applied to the cut, only natural healing. Number of cuts in each group: 40 each.

[0102] 2. Test indicators and time points Cut healing completion rate (30 days): the proportion of cuts covered by healing tissue with an area of 90% or more at 30 days. Cut cracking rate (7 days): the proportion of cuts with obvious radial cracks at 7 days. Long-term wetting rate of cuts (21 days): the proportion of cuts with obvious water seepage, liquid seepage, and long-term surface moisture at 21 days. Secondary rot incidence (30 days): the proportion of cuts with obvious brown rot at 30 days. Average healing score (30 days): each cut was scored from 0 to 5 (5 points for a smooth cut surface, good healing, and no disease spots), and the average value of each group was taken.

[0103] 3. Performance test results of Example 1 Table 1 Comparison of walnut cut healing effects under conventional climate conditions Example 2:

[0104] Anti-cracking performance under dry and windy conditions (corresponding to Example 2) 1. Experimental conditions and grouping Location: windy and less rainy areas in spring, with air relative humidity often at 35-50% during the test period. Tree age: 6-8 year-old walnut trees. Cut type: pruning in spring, cut diameter 2-4 cm, a total of 120 cuts.

[0105] Grouping: 1) Invention group: Example 2 enhanced moisturizing healing paste. 2) Control group 2: traditional water-based healing paste containing only film-forming emulsion and a small amount of bactericide (without composite moisture-regulating particles and high-content polyols). 3) Blank group: no healing paste was applied. Number of cuts in each group: 40 each.

[0106] 2. Test indicators and time points Cut healing complete rate (30 days). Cut severe dryness rate (7 days): the proportion of cuts with obvious concave, dry and edge up at 7 days. Cut surface cracking rate (14 days): the proportion of cuts with obvious cracking at 14 days.

[0107] Secondary rot incidence (30 days). Average healing score (30 days).

[0108] 3. Performance test results of experimental example 2 Table 2 Comparison results of walnut cut anti-drying cracking performance under drought wind condition Experimental example 3:

[0109] Anti-wet stain and anti-rot performance under high humidity condition in plum rain season (corresponding to example 3) 1. Experimental conditions and grouping Location: Southern plum rain season area, relative humidity is long-term 80-95% during the test period, and there are multiple moderate to heavy rain processes. Tree age: 10-12 year-old walnut trees. Cut type: summer retraction pruning, cut diameter 3-6 cm, a total of 120 cuts.

[0110] Grouping: 1) The present application group: using example 3 high humidity area anti-long-term wet stain type self-adjusting wet healing paste. 2) Control group 3: using high wax content traditional closed type healing paste (high wax content, almost no moisture permeability). 3) Control group 4: using high water absorbing resin content but lacking hydrophobic wax phase of excessive moisturizing type test formula. Number of cuts in each group: 40 each.

[0111] 2. Test index and time point Cut healing complete rate (30 days). Long-term wet stain rate (21 days): the proportion of cuts with continuous wet cut surface, water droplets or exudate at 21 days. Dry rot or mildew incidence (30 days). Paste film integrity rate (after three consecutive rainfall, observed at 30 days): the proportion of cuts with paste film not falling off or cracking in large area. Average healing score (30 days).

[0112] 3. Performance test results of experimental example 3 Table 3 Comparison results of walnut cut anti-wet stain and anti-rot performance under high humidity and rainy conditions Experimental example 4: Anti-cracking performance under large diurnal temperature difference and low temperature conditions (corresponding to example 4) 1. Experimental conditions and grouping Location: Northwest cold region from late winter to early spring, large diurnal temperature difference (10-15 degrees Celsius in the day, close to or slightly below 0 degrees Celsius at night). Tree age: 12-15 year-old walnut trees. Cut type: winter or early spring trunk backfiring pruning, cut diameter 4-7 cm, a total of 90 cuts.

[0113] Grouping: 1) Invention group: use Example 4 low-temperature large-temperature-difference region anti-cracking self-moisture-regulating type healing paste. 2) Control group 5: use ordinary water-based healing paste (without elastic adjustment and self-moisture-regulating structure). 3) Control group 6: use traditional closed healing paste with high wax content and no elastic adjustment component. Number of cuts per group: 30 each.

[0114] 2. Test indicators and time points Cut healing complete rate (45 days): considering that low-temperature healing is slightly slower, the time is appropriately extended. Paste film cracking rate (after experiencing at least 10 diurnal temperature difference cycles, 15 days). Secondary cracking rate of cuts (45 days): refers to the incidence of new cracks in the xylem around the original cut edge extending downward along the original cut surface. Incidence of secondary rot (45 days).

[0115] 3. Performance test results of experimental example 4 Table 4 Comparison results of walnut cut anti-cracking performance under large diurnal temperature difference and low temperature conditions Experimental example 5:

[0116] Comprehensive comparison of green and environmentally friendly type with conventional pharmaceutical type (corresponding to Example 5) 1. Experimental conditions and grouping Location: organic or green certified orchard, with more stringent restrictions on pesticide residues. Tree age: 8-12 year-old walnut trees. Cut type: summer pruning, cut diameter 2-4 cm, a total of 120 cuts.

[0117] Grouping: 1) Invention group: use Example 5 green and environmentally friendly type healing paste (use natural polysaccharides, high polymers, tea polyphenols, plant essential oils, etc., significantly reduce or do not contain synthetic fungicides). 2) Control group 7: conventional chemical fungicide high content healing paste (add high doses of multiple chemical fungicides to the polymer matrix, basically do not consider moisture regulation and environmental friendliness). 3) Control group 8: only apply low-dose chemical fungicide solution, do not use healing paste film (a simplified treatment method commonly used by farmers). Number of cuts per group: 40 each.

[0118] 2. Test indicators and time points Cut healing complete rate (30 days). Dry rot or disease spot incidence (30 days). Leaf or tender shoot pesticide injury rate near the cut (10 days):

[0119] 3. Performance test results of experimental example 5 Table 5 Comprehensive comparison results of green and environmentally friendly type and conventional dosage form walnut notch treatment

[0120] For the relative water loss rate, healthy one-year-old walnut branches were cut into 10 cm long branch segments, with the cross-sectional diameter at each end controlled at 3.0-3.5 cm, the rest of the side was sealed with paraffin wax except one end, only the standard notch was exposed; after applying different treatments, the branch segments were placed in a constant temperature and humidity box at 25 degrees Celsius and 60% relative humidity, the initial mass M0 was measured immediately after treatment, and the mass M3 was measured on the 3rd day, the relative water loss rate was calculated as (M0-M3) / M0 x 100%.

[0121] I. Comparative Test I: Healing effect under conventional climate conditions Corresponding to Table 1.

[0122] Under the test conditions, the main branch renewal notches of walnut trees with a diameter of 3-5 cm were treated by using the embodiment 1 of the present application, the commercially available oil paint type healing paste, and the blank group without any treatment, respectively, and the healing conditions were compared after 30 days.

[0123] As can be seen from the data in Table 1: The complete healing rate was significantly improved; the complete healing rate of the group of the present application was 88% after 30 days, that of the control group 1 (commercially available oil paint type healing paste) was only 62%, and that of the blank group was only 35%.

[0124] That is, the group of the present application is about 26 percentage points higher than the control group 1, which is about 1.4 times that of the control group 1, and is about 53 percentage points higher than the blank group, and the healing advantage is very obvious.

[0125] Early dry cracking was significantly reduced: the cracking rate of the group of the present application was only 7% after 7 days, the cracking rate of the control group 1 was 28%, and the blank group was as high as 49%. That is, the cracking rate of the group of the present application is reduced by about 21 percentage points compared with the commercially available oil paint type healing paste, and is reduced by about 42 percentage points compared with the blank group, which shows that the system of the present application has obvious anti-shrinkage and anti-cracking ability in the early stage.

[0126] Long-term wetting and secondary rot risk were simultaneously reduced The long-term wetting rate of the group of the present application was 6% after 21 days, which was lower than that of the control group 1 of 21%; the incidence of secondary rot after 30 days, the group of the present application was only 5%, the control group 1 was 18%, and the blank group was as high as 41%. This shows that the present application not only avoids excessive drying, but also effectively inhibits dry rot and disease caused by long-term over-wetting, and the overall moisture environment is more balanced.

[0127] The comprehensive healing quality score is higher: the average wound score of the inventive group is 4.5 points in 30 days, which is significantly higher than 3.2 points of the control group 1 and 2.1 points of the blank group, the section is smooth, the wound tissue is continuous, and the disease spot is less.

[0128] In summary, the results of the comparative test 1 show that under the conventional climate conditions, the self-humidity healing paste of the present application can inhibit early dry cracking while avoiding decay caused by long-term over-wetting, and compared with the existing paint-type healing paste, the complete healing rate and healing quality are significantly improved.

[0129] II. Comparative test 2: Anti-cracking performance under dry and windy conditions Corresponding to Table 2.

[0130] In the spring dry, windy, and low relative humidity area, the pruning incisions of walnut with a diameter of 2-4 cm are treated, and the inventive example 2, the ordinary water-based healing paste (without humidity adjusting structure) and the blank group are compared.

[0131] As can be seen from the data in Table 2: The dry shrinkage and cracking phenomenon is greatly reduced: the severe dry shrinkage rate of the inventive group is 5% in 7 days, which is significantly lower than 24% of the control group 2 and 46% of the blank group; the cracking rate in 14 days, the inventive group is only 8%, the control group 2 is 27%, and the blank group is 41%. That is, the inventive group reduces about 19 percentage points in the severe dry shrinkage index and about 19 percentage points in the cracking rate compared with the ordinary water-based healing paste, and reduces more than 40 percentage points compared with the blank group, which shows that the humidity adjusting structure of the present application can significantly buffer the water loss under dry and windy conditions, and avoid the serious shrinkage and cracking of the section.

[0132] The 30-day healing rate is significantly improved: The complete healing rate of the inventive group is 84% in 30 days, the control group 2 is 60%, and the blank group is only 32%. The inventive group is improved by about 24 percentage points compared with the control group 2, and by about 52 percentage points compared with the blank group, and the healing speed and healing degree are significantly better than the control.

[0133] The decay rate is significantly reduced: although the environment is dry, the secondary decay rate of the inventive group is still only 6% in 30 days, the control group 2 is 15%, and the blank group is 39%. It shows that while preventing excessive dry cracking, the present application does not cause long-term wetting, and still maintains good disease prevention effect.

[0134] The comprehensive score is significantly better than the control: The average wound healing score of the inventive group is 4.4, the average wound healing score of the control group 2 is 3.1, and the average wound healing score of the blank group is 2.0. In summary, the second comparative test shows that in the dry and windy environment where the climate easily leads to rapid water loss and cracking of the cut, the inventive example 2 effectively slows down the water loss and significantly inhibits severe shrinkage and cracking by using the superabsorbent gel in combination with the moisture regulating components such as polyols, and the healing effect is obviously better than the traditional water-based healing ointment containing only the film-forming emulsion.

[0135] III. Comparative Test 3: Moisture-proof and rot-proof performance under high humidity and rainy conditions Table 3 is shown in the corresponding table 3.

[0136] In the high-humidity and frequent rainfall area during the plum rain season, the inventive example 3, the high-wax strong sealing type healing ointment, and the over-moisturizing type formula with superabsorbent resin are used for comparison on the walnut cut of 3-6 cm in diameter.

[0137] As can be seen from the data in Table 3: The healing rate is still high in a high-humidity environment: the complete healing rate of the inventive group is 86% in 30 days; the complete healing rate of the high-wax strong sealing control group 3 is 63%; and the complete healing rate of the over-moisturizing control group 4 is 58%.

[0138] That is, the inventive group is about 23 and 28 percentage points higher than the two control groups respectively, which shows that in a high-humidity and rainy environment, the self-moisturizing system of the inventive group can still provide moisture conditions that are conducive to the formation of healing tissue.

[0139] The occurrence of long-term wetting and dry rot is effectively reduced: the long-term wetting rate of the inventive group is 9% in 21 days, the long-term wetting rate of the high-wax control group 3 is 15%, and the long-term wetting rate of the over-moisturizing control group 4 is as high as 32%. In particular, compared with the control group 4, the long-term wetting rate of the inventive group is reduced by about 23 percentage points. The occurrence rate of dry rot or mildew in 30 days is only 7% for the inventive group, 19% for the control group 3, and 27% for the control group 4, which is reduced by about 12 and 20 percentage points respectively.

[0140] The ointment film integrity rate is high, and the ointment film integrity rate is not induced by excessive sealing: The ointment film integrity rate of the inventive group is 92% in 30 days, which is higher than the ointment film integrity rate of 81% of the control group 4 and slightly higher than the ointment film integrity rate of 88% of the control group 3; At the same time, the occurrence rate of dry rot of the inventive group is significantly lower than that of the two control groups, which shows that the inventive system can ensure rain-proof adhesion while avoiding the problem of internal dampness and rot caused by high-wax strong sealing.

[0141] The comprehensive healing quality score is the best: the average wound healing score of the inventive group is 4.5, the average wound healing score of the control group 3 is 3.3, and the average wound healing score of the control group 4 is 3.0.

[0142] In summary, the results of Comparative Test 3 show that under high humidity and rainy conditions, the cooperation of the hydrophobic wax phase + porous framework + high water absorption and moisture adjusting particles enables the incision to resist rain erosion and avoid long-term over-wet environment, and the proportion of dry rot and mold rot is significantly reduced, and the healing effect is obviously better than that of the pure high wax sealing type and the pure high water absorption and moisture retention type.

[0143] Four, Comparative Test Four: Anti-cracking performance under large diurnal temperature difference and low temperature conditions Corresponding to Table 4.

[0144] In cold and cool areas with large diurnal temperature difference and night temperature close to 0℃, the retracted incisions of walnut trunks with a diameter of 4-7 cm were treated, and the present application Example 4, ordinary water-based healing paste and high wax sealing healing paste were compared.

[0145] As can be seen from the data in Table 4, the complete healing rate remains high under low temperature conditions: the complete healing rate of the present application group is 81% in 45 days; the complete healing rate of the control group 5 (ordinary water-based paste) is 55%; and the complete healing rate of the control group 6 (high wax paste) is 49%. The present application group is about 26 percentage points higher than the control group 5, and about 32 percentage points higher than the control group 6.

[0146] Cracking of the paste film is significantly reduced: After multiple diurnal temperature difference cycles, the 15-day paste film cracking rate of the present application group is only 6%, that of the control group 5 is 27%, and that of the control group 6 is 33%. The cracking rate of the present application group is about 21 and 27 percentage points lower than that of the two control groups, respectively, indicating that the comprehensive design of elasticity, flexibility and moisture adjustment of the present application system effectively alleviates the film cracking problem caused by temperature changes and trunk expansion and contraction.

[0147] Secondary cracking and rotting of the incision are significantly reduced: The secondary cracking rate of the incision of the present application group is 7% in 45 days, that of the control group 5 is 24%, and that of the control group 6 is 29%; the incidence of secondary rotting of the present application group is 8%, that of the control group 5 is 21%, and that of the control group 6 is 24%. This shows that under low temperature and large temperature difference, the flexible film-forming matrix combined with the moisture adjusting structure of the present application not only protects the paste film itself from cracking, but also effectively protects the living tissue below the incision from secondary cracking and rotting that spreads downward.

[0148] In summary, the results of Comparative Test Four show that in an environment with large diurnal temperature difference and prone to material fatigue and bark cracking, the paste body of the present application significantly reduces the cracking rate of the paste film and the secondary cracking rate of the incision through the comprehensive action of the elastic film-forming phase and the moisture adjusting, hydrophobic and porous framework phase, and the healing effect is obviously better than that of the ordinary water-based healing paste and the high wax sealing healing paste.

[0149] Five, Comprehensive Comparison between Green and Environmentally Friendly Type and Conventional Agent (Guoguang Paste Healing Smearing Agent) Type Corresponding to Table 5.

[0150] In organic or green certified orchard, the long-term effect and safety of walnut cuttings with diameter of 2-4 cm were compared among three treatments of Example 5 (green and environment-friendly formula) of the present application, high-content chemical fungicide healing paste, and only chemical fungicide solution. As can be seen from the data in Table 5, the healing effect of the cuttings is not inferior to that of the high chemical pesticide group and is significantly better than that of the group only with pesticide solution: the complete healing rate of the green and environment-friendly group of the present application is 83% in 30 days; the healing paste control group 7 with high content of chemical fungicide is 79%; and the control group 8 with only chemical fungicide solution is 52%.

[0151] The healing rate of the group of the present application is slightly higher than that of control group 7 and significantly higher than that of control group 8, indicating that a higher healing effect can be ensured under the premise of reducing the use amount of chemical pesticides.

[0152] Good control of dry rot disease: the occurrence rate of dry rot / disease spots in the group of the present application is 7%, which is basically the same as that of control group 7 (6%) and significantly better than that of control group 8 (28%). It is shown that the use of biological sources or low-residue active substances such as tea polyphenol, plant essential oil, and chitosan oligosaccharide in the formula of the present application, in combination with an appropriate amount of copper-zinc chelate, can maintain good disease prevention ability under the premise of significantly reducing the use amount of traditional fungicides.

[0153] Significant reduction of phytotoxicity and agricultural residue level: in terms of phytotoxicity rate, the group of the present application is 3%, which is significantly lower than that of control group 7 (15%) and slightly lower than that of control group 8 (5%); in terms of agricultural residue exceeding standard rate, the detection result of the group of the present application is 0-2% (close to the lower limit of detection), which is significantly lower than that of control group 7 (10-15%) and also lower than that of control group 8 (6-8%). It is shown that the present application can significantly reduce the phytotoxicity risk and residue risk of tree and fruit while ensuring the disease prevention and healing effect, and is more suitable for green and organic production.

[0154] In summary, the results of comparative test five show that the green and environment-friendly self-hydrating healing paste of the present application can maintain healing and disease prevention effects comparable to or slightly better than those of the high-pesticide formula while significantly reducing the use amount of synthetic chemical fungicides, and can significantly reduce the phytotoxicity and residue risk, which is more in line with the development direction of current green agriculture.

[0155] Six, summary of comprehensive comparison effect (can be used in the beneficial effect part) From the above-mentioned comparison test results of each group, it can be seen that under the environmental conditions of conventional climate, drought and wind, high humidity and rain, and low temperature and large temperature difference in various typical walnut production areas, the self-moisture adjusting healing paste is obviously superior to the existing paint type, high wax sealing type or ordinary water-based healing paste in terms of complete healing rate, incision cracking rate, long-term wetting rate and secondary rot occurrence rate and the like. Through the multiphase synergy of the water-based film-forming phase + high water-absorbing hydrogel particle phase + porous inorganic skeleton phase + hydrophobic wax phase, dynamic moisture regulation can be automatically realized according to the environmental moisture condition and the healing stage of the incision, that is, strong liquid absorption and buffering in the bleeding period, moderate moisturizing in the healing period, and avoiding long-term wetting in the later period, thereby significantly reducing the occurrence of early dry cracking and late dry rot. In the green and environmentally friendly embodiment, the tea polyphenol, plant essential oil, chitosan oligosaccharide and the like are used to replace part of the traditional bactericides, so that the healing rate and the disease prevention effect are maintained, the drug damage occurrence rate and the fruit pesticide residue level are effectively reduced, and the application in green and organic walnut orchards is more suitable.

[0156] The above-mentioned comparison test and data fully prove that, compared with the prior art, the self-moisture adjusting healing paste has comprehensive significant advantages in moisture environment regulation, healing quality, disease prevention effect and environmental friendliness, can effectively solve the technical problem caused by the inconsistency of the moisture condition requirements of the walnut incision in the bleeding period and the healing period, and embodies good technical effect and application value.

[0157] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer elements and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0158] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-mentioned system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0159] In the several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented by other ways. For example, the device embodiments described above are only schematic, and for example, the division of the units is only a logical function division, and there can be another division way in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection between each of the units can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0160] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may also be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0161] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A wound healing ointment for promoting the healing of walnut cuts, comprising, by weight percentage, the following components: Elastic film-forming matrix phase component A: 12-35%; highly absorbent / water-releasing moisture-regulating particle phase component B: 3-12%; hydrophobic and water-blocking microphase component C: 5-22%; rheology and interface regulation phase component D: 1-8%; osmotic pressure and water activity regulating phase component E: 5-20%; and the balance being water and auxiliary agents; Component A comprises an aqueous polyurethane-acrylate copolymer emulsion and a modified polyvinyl alcohol or a polyvinyl alcohol-starch blend; Component B comprises crosslinked sodium carboxymethyl cellulose particles and one selected from crosslinked starch microparticles and alginate microparticles; Component C comprises a mixture of beeswax and microcrystalline wax, one selected from hydrogenated vegetable oil and fatty acid glycerides, and one selected from rosin-modified resin and rosin glycerides; Component D comprises a cellulose thickener and a nonionic surfactant / wetting agent; Component E comprises a polyol humectant and a nutrient and buffer salt, and optionally includes trace amounts of antioxidants and physiological promoters.

2. The wound healing ointment for promoting the healing of walnut cuts according to claim 1, characterized in that: In the osmotic pressure and water activity regulating phase component E, the total content of polyol moisturizers in the wound healing ointment is 5-18%, including glycerin, propylene glycol, and sorbitol. Glycerin accounts for 30-70% of the total polyol moisturizers, while propylene glycol and sorbitol account for the remainder. The nutrient and buffer salt is one or more of potassium dihydrogen phosphate, potassium citrate, or potassium lactate, with a total content of 0.2-3%. The trace antioxidant is ascorbic acid, with a content of 0.05-0.5%. The physiological promoting substance is one or more of gibberellin or indolebutyric acid, with a content of 0.005-0.05% of the total mass of the wound healing ointment.

3. The wound healing ointment for promoting the healing of walnut cuts according to claim 1, characterized in that: In component A, waterborne polyurethane-acrylate copolymer emulsion accounts for 60-85% of the total amount of component A, modified polyvinyl alcohol or polyvinyl alcohol-starch blend accounts for 10-30% of the total amount of component A, and natural polysaccharide reinforcing agent accounts for 0-20% of the total amount of component A.

4. The wound healing ointment for promoting the healing of walnut cuts according to claim 1, characterized in that: In the superabsorbent / water-releasing moisture-regulating particulate phase component B, the total amount of cross-linked sodium carboxymethyl cellulose particles and cross-linked starch or alginate particles accounts for 60-100% of the total amount of component B, and the synthetic superabsorbent resin accounts for 0-40% of the total amount of component B.

5. The wound healing ointment for promoting the healing of walnut cuts according to claim 1, characterized in that: The hydrophobic and water-blocking microphase component C includes a mixture of beeswax and microcrystalline wax, hydrogenated vegetable oil or fatty acid glycerides, and rosin-modified resin or rosin glycerides. The mass ratio of beeswax to microcrystalline wax is 1:1 to 1:

3. The mixture of beeswax and microcrystalline wax accounts for 30% to 60% of the total amount of component C, the hydrogenated vegetable oil or fatty acid glycerides account for 10% to 40% of the total amount of component C, and the rosin-modified resin or rosin glycerides account for 10% to 40% of the total amount of component C. Optionally, it may contain hydrophobic inorganic fillers treated with silane, accounting for 0% to 30% of the total amount of component C.

6. The wound healing ointment for promoting the healing of walnut cuts according to claim 1, characterized in that: The highly absorbent / water-releasing moisture-regulating particulate phase component B includes cross-linked sodium carboxymethyl cellulose particles and cross-linked alginate particles; the hydrophobic and water-blocking microphase component C includes beeswax, rice bran wax, and sunflower seed oil; the wound healing ointment further includes diatomaceous earth, microcrystalline cellulose, and bentonite as inorganic and fibrous fillers, glycerin and sorbitol as polyol moisturizers, amino acid chelated copper, amino acid chelated zinc, boric acid, salicylic acid, chitosan oligosaccharides, tea polyphenol powder, and plant essential oils as functional active substances, and food-grade preservatives.

7. The method for preparing the wound-healing ointment for promoting the healing of walnut cuts according to claims 1-5, characterized in that, Includes the following steps: Step 1: Heat and dissolve modified polyvinyl alcohol in deionized water in a mixing tank to obtain the basic aqueous phase. After cooling, add waterborne polyurethane-acrylate copolymer emulsion to form the film-forming matrix of component A. Step 2: Dissolve sodium carboxymethyl cellulose, starch or alginate in water, add a cross-linking agent to cross-link into a gel, dry, pulverize and sieve to obtain cross-linked particles, which are used as component B; Step 3: Melt beeswax, microcrystalline wax, hydrogenated vegetable oil or fatty acid glycerides and rosin-modified resin in a heating kettle, and emulsify them at high speed in component A to form component C; Step four: In the system containing component A, add component D containing cellulose thickener and nonionic surfactant, component E containing polyol moisturizer and nutrient buffer salt, and component B particles in sequence. Add water, preservative, defoamer and colorant, stir evenly and defoam to obtain wound healing ointment.

8. The method for preparing the wound healing ointment for promoting the healing of walnut cuts according to claim 7, characterized in that: In step one, the dissolution temperature of the modified polyvinyl alcohol is 60-70℃ and the dissolution time is 30-60 minutes; in step two, the cross-linking reaction temperature is 40-80℃; in step three, the melting temperature of beeswax and microcrystalline wax is 75-85℃, and the aqueous phase temperature during emulsification in the main mixing tank is 35-45℃; the pH of the final wound healing ointment system is controlled at 5.0-7.

5.

9. The application of a walnut cut wound healing ointment in the protective treatment of walnut cuts, characterized in that: The wound healing paste comprises an elastic film-forming matrix phase A, a highly absorbent / water-releasing moisture-regulating particle phase B, a hydrophobic and water-blocking microphase phase C, a rheology and interface regulation phase D, and an osmotic pressure and water activity regulating phase E. It is applied to the cut surface and its outer 2-3 mm margin using a brush or scraper within 30 minutes to 3 hours after winter or early spring pruning, summer pruning, or grafting of walnut trees. The paste thickness is controlled at 0.5-2.0 mm. The paste is allowed to cure into a film at an ambient temperature of 0-35℃ and a relative humidity of 35-95%, and is used to protect walnut cuts with a diameter of 2-7 cm.

10. The application according to claim 9, characterized in that: Walnut cuttings can be made in one of the following ways: a 3-5 cm diameter main branch renewal cut made during early spring pruning; a 2-4 cm diameter cut made during spring shaping pruning; a 3-6 cm diameter cut made during the rainy season pruning; or a 4-7 cm diameter cut made during late winter to early spring main trunk pruning.

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