104 results about "Grafting method" patented technology

The application discloses a grafting seedling cultivation method for improving grafting survival rate, relates to the technical field of grafting seedling cultivation, and aims at the problem of poor success rate of seedling grafting. The application deeply fuses plant physiological characteristics, geometric morphological parameters and grafting mechanics principles, constructs a quantifiable and traceable method selection model, improves the adaptation efficiency of the grafting method by more than 3 times, realizes continuous optimization of the healing environment through continuous circulation of data comparison and parameter adjustment, guarantees efficient grafting process, sets evaluation indexes such as callus development, new shoot growth, environmental stability and root development, accurately judges the growth quality of the grafting seedling at different healing stages, realizes continuous optimization of the healing environment through continuous circulation of data comparison and parameter adjustment, and guarantees efficient grafting process.

The invention discloses a polypropylene grafted copolymer self-reinforced polypropylene cable insulation material and a preparation method thereof, and relates to the field of high polymer materials. The preparation method of the material comprises the following steps: firstly, preparing a polypropylene grafted copolymer by a melt grafting method or an electron beam radiation grafting method; carrying out melt blending on the master batch and polypropylene to prepare a primary master batch; and finally, carrying out melt blending on the primary master batch, polypropylene, an antioxidant, a voltage stabilizer and a processing aid to obtain the cable insulating material. The polypropylene grafted copolymer induces the matrix polypropylene to generate a beta crystal form, and the beta crystal form and the polar vinyl monomer jointly realize self-enhancement independent of an elastomer, so that the toughness, the heat resistance and the direct-current dielectric property of the material are synchronously improved, and the problem of performance reduction caused by blending of traditional elastomers is solved; the method is suitable for the high-voltage direct-current cable insulation field.

The invention relates to the technical field of plant grafting, in particular to a method for improving the grafting survival rate of malania oleifera, which comprises the following steps: S1, scion preparation: treating branches of excellent perennial wild malania oleifera plants in the field, conveying the branches to an inoculation field, and disinfecting to obtain disinfected branches; s2, stock preparation; s3, grafting: preparing a scion by using the disinfected branch, treating a stock, tightening the stock and a grafting film for tongue grafting of the scion, and smearing a healing agent on a cut of the cut stock and the upper end of the grafting film; s4, management after grafting. Compared with the prior art, the method has the advantages that superior plant branches and artificially cultivated stocks are subjected to tongue grafting, and compared with bud grafting, the yield time of grafted seedlings is shortened; and then the branch of the malania oleifera superior plant is treated immediately when the scion is collected, so that the problems that the activity of the branch is reduced in the transportation process and the formation of the callus of the stock and scion cambium is slow are solved, the grafting survival rate is increased, and the grafted seedling obtaining time is shortened.

The invention discloses a Ilex rotunda grafting method which comprises the following steps: from late February to mid-March, preparing a 3-5-year-old Ilex rotunda rootstock for cultivation, and irrigating the Ilex rotunda rootstock; preparing a scion with double inclined planes; cutting a cut with the depth of 3cm in the rootstock, inserting the scion and aligning to the cambium; and carrying out double-layer binding by using a viscous PVC grafting film and a grafting soft film. The final-period management comprises the steps of sunshelter building, irrigation, bud picking, unbinding, pinching, fertilization and weeding. The problem that Ilex rotunda is difficult to breed is solved, the grafting survival rate is high, and the seedling raising period is short.

The utility model relates to the technical field of grafting devices, in particular to a vegetable grafting robot which comprises a rack, a cutting mechanism and a grafting mechanism, and the cutting mechanism is assembled on one side of the rack and used for cutting stocks and vegetables; the grafting mechanism comprises a conveying assembly and clamping assemblies, and the clamping assemblies are installed on the two sides of the rack and used for clamping vegetables; the conveying assembly is installed on the rack, located between the clamping assemblies and used for conveying grafted vegetables. The objective of the utility model is to improve the automation degree of grafting and increase the success rate of grafting based on the beveling attachment grafting method as the operation process basis of the grafting robot.

The invention discloses a cinnamomum migao bud stock grafting method. The method comprises the steps of seed selection, treatment, stock cultivation, scion collection, grafting, transplanting, seedling stage management and the like. The grafting method adopts a bud seedling stock grafting technology, is an effective way for accelerating the improved variety process of cinnamomum migao, effectively shortens the seedling raising period, is low in seedling raising cost, good in seedling quality, capable of realizing fast growth and early fruiting, simple and convenient to operate, easy to master by the masses, and convenient to popularize and apply.

The invention discloses a TEPA modified bimetallic MOF material for CO2 adsorption and a preparation method of the TEPA modified bimetallic MOF material, and belongs to the technical field of CO2 adsorption. The preparation method comprises the following steps: firstly, by virtue of a solvothermal method, taking zinc nitrate hexahydrate and magnesium nitrate hexahydrate as bimetallic sources, and reacting with an organic ligand 2, 5-dihydroxy terephthalic acid, so as to prepare Zn-Mg bimetallic MOF-74; and then grafting tetraethylenepentamine to the skeleton of the bimetallic MOF-74 in an inert atmosphere by adopting a post-synthesis grafting method. The chemical adsorption site of TEPA is combined with the physical adsorption framework of Zn-Mg bimetal MOF-74, the regulation and control effect of bimetal on the pore structure and rich amino functional groups introduced by TEPA are utilized, the CO2 adsorption capacity, the amine efficiency and the cycle stability are improved, and the preparation method is mild in condition, simple in process, easy to expand and suitable for industrial production. The method has a wide application prospect in the fields of industrial flue gas CO2 capture and the like.

This invention belongs to the field of biomedical materials, specifically providing a highly permeable hydrophilic polyurethane artificial membrane based on chemical grafting and its preparation method, comprising the following steps: S1 - Substrate pretreatment: Immersing a polyurethane film in an organic solvent, ultrasonically cleaning and soaking for 0.5-2 hours, then removing and drying to constant weight to obtain a pretreated substrate; S2 - Preparation of hydrophilic modified polyurethane: Completely immersing the substrate obtained in step S1 in a hydrophilic modification solution, introducing an inert gas for 10-30 minutes, heating to 35-45°C, and reacting under stirring or shaking in the dark for 6-24 hours to obtain a hydrophilic modified polyurethane membrane; S3 - Post-treatment: The hydrophilic modified polyurethane membrane from step S2 is sequentially acid-washed, water-washed, and then vacuum-dried to obtain the hydrophilic polyurethane artificial membrane. The hydrophilic polyurethane artificial membrane of this invention, prepared by chemical grafting, possesses high permeability and excellent mechanical properties.

The application relates to the technical field of plant grafting, and particularly discloses a grafting method capable of improving disease resistance of eggplants, which comprises the following steps: Solanum nigrum seedling, eggplant seedling, seedling period management and grafting; in the application, the wild Solanum nigrum is selected as the stock, has the advantages of fast growth speed and good disease resistance, and can greatly improve the disease resistance and yield of the plant as the stock; the eggplant has a high incidence rate during the growth process, especially the occurrence of the yellow wilt disease is serious, and the yield is completely lost in serious cases; the grafting can solve the fundamental problem; the Solanum nigrum seed has a large amount, is easy to breed, and has a high germination rate; the special nutrient solution is sprayed, the wound healing speed of the grafting is greatly accelerated, and the healing effect is good; the grafting method of the sleeve pipe is adopted, the grafting speed is improved, the wound is protected, and the bacteria are prevented from invading the wound.

This invention discloses a grafting method for small-leaved red bean branches. It uses small-leaved red bean (… Ormosia microphylla ) as the scion, with red bean tree ( Ormosia hosiei This invention uses a grafting method that successfully expands the population size of *Ormosia henryi*, promoting its regeneration and rejuvenation. This invention is of great significance for the artificial assistance in de-emerging endangered plants.

The invention relates to the technical field of plant grafting, and particularly discloses a Chinese rose grafting device and a grafting method.The Chinese rose grafting device comprises a frame and a grafting knife which is arranged on the frame and used for cutting Chinese roses, a clamping seat is arranged on the frame, a clamping hole for the Chinese roses to penetrate through is formed in the clamping seat, and a clamping device is arranged on the clamping seat; the clamping device comprises a clamping sleeve installed on the clamping base, a plurality of elastic pieces arranged on the end face of the clamping sleeve and used for conducting extrusion locking and unlocking on Chinese roses and a locking sleeve arranged on the clamping sleeve and used for conducting extrusion locking and unlocking on the elastic pieces, and the grafting knife is in sliding fit with the elastic pieces. After the Chinese rose is inserted into the clamping hole and the clamping sleeve, the elastic piece is extruded and locked through the locking sleeve, one end of the elastic piece rotates towards the position close to the peripheral face of the Chinese rose and drives the grafting knife to rotate towards the position close to the peripheral face of the Chinese rose, and at the moment, the grafting knife is obliquely arranged and pushed to cut the Chinese rose; the Chinese rose grafting method can improve the Chinese rose grafting quality.

The application discloses a method for grafting magnolia denudata with magnolia grandiflora, and belongs to the technical field of plant grafting and maintenance. The method for grafting magnolia denudata with magnolia grandiflora is characterized by using magnolia denudata as a stock, using a branch of magnolia grandiflora as a scion, adopting the bud-embedding grafting method, and combining with field water and fertilizer management in the later period to obtain the grafted plant. In the second year after grafting, a special spraying agent for magnolia grandiflora is sprayed. The grafting method is simple in process, and the survival rate of grafting is above 70% by selecting a suitable magnolia denudata stock, a suitable magnolia grandiflora scion, a suitable grafting time and a correct grafting mode, so that the propagation efficiency of magnolia grandiflora seedlings is greatly improved, and large-scale seedling raising of magnolia grandiflora can be realized, with low cost and high benefit. After the spraying agent is used, the number of flowers and the quality of flowers of magnolia grandiflora can be effectively improved, the spraying agent is convenient to use, is mild and safe, and the flowering ornamental property of magnolia grandiflora is improved.

The invention discloses a method for cultivating high-starch potatoes through grafting, and relates to the technical field of potato cultivation. The method comprises the following specific steps: (1) cultivating a high-starch potato stock and a common potato scion; (2) grafting the rootstock and the scion; (3) grafted plant treatment; (4) domestication treatment: carrying out stress treatment on the grafted seedlings for 10-15 days, then transferring the grafted seedlings outdoors for culture, and harvesting tubers; and (5) screening of high-starch germplasm: selecting tubers with high starch content for planting, repeatedly domesticating for 2-3 generations, and harvesting tubers to obtain the high-starch potato germplasm. According to the method, the high-starch potato seedlings and the common potato seedlings are grafted, aeroponic culture management is performed after grafting, domestication treatment is performed, the starch content of the grafted potatoes can be increased, and after multi-generation domestication, the high-starch potato germplasm is obtained through breeding. According to the method, the variety breeding process is shortened, and the problem that the high-starch potato germplasm is not created by adopting a grafting method at present is solved.

The invention provides a wood dyeing method, and belongs to the technical field of wood dyeing. The method comprises the following steps: bleaching wood, pretreating the bleached wood by using an inorganic alkaline solution, placing the pretreated wood in a cation modification solution for cation modification, and placing the cation modified wood in an acid dye dyeing solution for dyeing to obtain the cation modified dyed wood. The inorganic alkaline solution is used for pretreating the bleached wood, under the alkaline condition, hydroxyl groups on the surface of wood fibers are more easily activated, the reaction activity of the wood fibers is improved, cationic groups in the cationic modifier and hydroxyl groups in wood cellulose are more easily subjected to chemical reaction, and therefore more stable covalent bond combination is formed; more cationic modifiers are grafted to wood fibers through a chemical grafting method, more groups with positive charges are introduced to the surface of wood, then the dye uptake is increased, and the cationic modifier is suitable for dyeing processing of wood materials such as recombined decorative veneers and veneer veneers.

The invention relates to the technical field of white bark pine breeding, and particularly discloses a white bark pine multi-point sparrow-tongue grafting method, which comprises the following steps: firstly, selecting a branch with a full terminal bud at the middle upper part of a white bark pine as a scion, treating needle leaves, and cutting out specific positive and short cut surfaces; selecting and treating upper thicker lateral branches in the rootstock, and manufacturing fitting surfaces matched with the lateral branches; and finally, inserting the scions, binding with a PE film strip, and grafting 4-5 scions on one stock. According to the method, through accurate scion and stock treatment and multi-point grafting, the grafting survival rate is effectively increased, grafted seedling growth is promoted, germplasm resource preservation and large-scale breeding are facilitated, and the method has important application value in the field of pinus bungeana planting.

The invention belongs to the technical field of wear-resistant material preparation, and provides a high-wear-resistant leakproof composite material for mechanical equipment and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing functional nano particles, loading a lubricant in a porous silicon dioxide core, fixing the lubricant on the surfaces of the particles by using an initiator, then carrying out surface polymerization of glycidyl methacrylate to form an inner polymer shell, and then sequentially constructing a functional inner polymer shell and a low-friction outer polymer shell by using a surface grafting method; secondly, a core-shell structure repairing microcapsule is prepared, a polymerizable repairing agent system is packaged in a core, isocyanate and water / hydroxyl react in an interface reaction to generate a polyurethane-urea shell, and when the microcapsule is broken due to stress, a catalytic activity center released by the shell can initiate in-situ polymerization of an in-core repairing agent; meanwhile, particles with a polymer-inorganic matter amphiphilic structure are prepared; and finally, uniformly dispersing the three functional additives and the dispersing agent into the base oil to finally obtain the liquid composite material.

The invention discloses a grafting method suitable for quickly renewing mulberry varieties in a mulberry field of middle-high-trunk mulberries. The grafting method comprises the steps of branch reserving, grafting, side branch removing, fixing, bag removing, core stopping, summer cutting, fertilizing, bud thinning, leaf picking, follow-up management and the like. The grafting method can be put into production in half a year, so that the production period is remarkably shortened, the waste of land resources and time is reduced, and the land cost is saved. Through variety optimization, the stress resistance of mulberry varieties can be remarkably improved, the unit yield of a mulberry field is increased, and the economic benefits of the silkworm and mulberry industry are improved. Meanwhile, excellent single plants can be rapidly propagated, biological, economic, genetic and other basic characters of the mulberry germplasm resources are observed, and the mulberry germplasm resources are rapidly identified.

The present application relates to a kind of difficult culture pathogen resistance identification method and its application, belong to the field of agriculture and forestry science, step 1: the culture screening of toxic source plant, plant to be identified and indicator plant;Step 2: grafting transmission, the toxic source plant screened only with difficult culture pathogen, the plant to be identified without difficult culture pathogen and indicator plant are arranged in position, and transmission is carried out using grafting method;Step 3: observation and detection, according to the disease cycle of difficult culture pathogen, the disease phenotype of plant to be identified and indicator plant in step 2 is observed, and the colonization, propagation of difficult culture pathogen is detected by PCR method;Step 4: disease resistance and pathogen running speed evaluation.Effectively solve the problem that the identification result is inaccurate due to the low inoculation rate of difficult culture pathogen using transmission medium, the inconsistency of inoculation source pathogen and other reasons, the error is larger in resistance identification work, etc.

The invention discloses a preparation method and application of a functionalized mesoporous material SBA-15, and relates to the field of chemical synthesis and photoelectrocatalysis materials.Organic functionalization is conducted on SBA-15 through a grafting method, and an amino-functionalized mesoporous material NH2-SBA-15 is obtained; and carrying out salicylaldehyde functionalization treatment on the amino functionalized mesoporous material NH2-SBA-15, so as to obtain the salicylaldehyde functionalized mesoporous material S-SBA-15. The functionalized mesoporous material NH2-SBA-15 and the functionalized mesoporous material S-SBA-15 can be used for photoelectrocatalytic reduction of CO2, and have good photoelectrocatalytic activity and stability.

The invention relates to a bifunctional solid amine adsorbent and a preparation method and application thereof, and the preparation method comprises the following steps: (1) grafting: firmly bonding amino silane on the surface of a carrier through a chemical grafting method to form a first amine grafting layer; and (2) dipping: loading high-density amine molecules into the residual pore channels of the carrier with the amine grafting layer by a physical dipping method to obtain the dual-functional solid amine adsorbent. Compared with the prior art, the invention breaks through the bottleneck of poor oxidation stability of the traditional adsorbent through a dual-functional synthesis method of grafting first and then impregnation, and provides a low-cost, efficient and green solution for long cycle life of the adsorbent in the field of flue gas carbon capture.

The invention is suitable for the technical field of biomedical materials, and provides a luteolin chemical grafting-based composite scaffold as well as a preparation method and application thereof. Polycaprolactone glycol, polyethylene glycol and luteolin form a high-molecular polymer through a chemical grafting method, and the high-molecular polymer is prepared into a stent form through 3D printing. The preparation method is simple in synthesis process and low in cost, and the luteolin chemically-grafted polycaprolactone glycol / polyethylene glycol high-molecular polymer composite scaffold is constructed through carbamate bonds, so that uniform dispersion and slow release of luteolin in the scaffold are realized; the problems that luteolin is poor in water solubility, high in metabolism speed and prone to agglomeration in physical blending are solved, immunoregulatory bone regeneration is achieved by means of the function that luteolin regulates and controls M2 type polarization of macrophages, and meanwhile the surface hydrophilicity of the polymer composite scaffold is improved. The composite scaffold can be applied to the biomedical field of bone defects in an immune microenvironment abnormal state and the like, and repair of a bone defect area is promoted through the effects.

The invention provides a pea protein isolate-folic acid covalent graft as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving pea protein isolate, and stirring and mixing with ascorbic acid and H2O2 to obtain a reaction system; stirring folic acid and the reaction system to react, and adjusting the pH value to 7-12 in the reaction process to obtain a mixed solution; dialyzing to obtain dialysate, freezing the dialysate, and freeze-drying to obtain the pea protein isolate-folic acid covalent graft. According to the invention, the pea protein isolate-folic acid covalent graft is prepared by adopting a free radical grafting method for the first time, covalent coupling is realized only through amino (-NH2) of pea protein isolate and carboxyl of folic acid, and the green chemistry concept is met. The pea protein isolate-folic acid covalent graft has excellent storage stability, ultraviolet tolerance and thermal stability, and a novel carrier with comprehensive performance and definite application potential is provided for drug targeted colitis delivery.

The application provides a method for promoting growth of passion fruit scion and improving graft survival rate, which comprises the following steps: (1) cultivating rootstock; (2) cultivating scion: spraying the mixed nutrient solution of 85% phosphorus glycine diluent, 98% sodium phenylsulfonate diluent and 0.01% brassinolide diluent on the scion mother plant once, spraying 8% fresh amine ester and potassium nitrate solution once after 2 days, and promoting lateral bud germination; collecting lateral vine top bud as scion; (3) selecting sealing film as sealing grafting interface material; (4) grafting: adopting cutting bud grafting method; (5) moisture and temperature preservation management; (6) seedling nutrient management; and (7) seedling disease and pest control. The method sprays the nutrient solution for promoting lateral vine germination to accelerate lateral vine growth, simultaneously adopts bud grafting method combined with sealing film to seal the grafting interface, avoids residual water in the grafting interface caused by watering during growth, and avoids affecting graft survival rate due to difficult healing, so that the purpose of reducing grafting cost and improving graft survival rate is achieved.

The utility model provides a special cutter for bud grafting cutting of forest fruit tree nursery stock, which comprises a cutter head, a cutter neck and a cutter handle, the cutter head has a convex arc shape, so that the cutter head has a cutting operation function, the cutter head is short and small, the operation is flexible, the use is more convenient, and the problems that the existing bud grafting cutter is uncomfortable in clamping and inflexible in operation after being used for a long time are solved. The method is applied to industrial production using the shield-shaped bud grafting method, the grafting speed can be further increased while the bud grafting survival rate and the grafting bud utilization rate are increased, and therefore industrial popularization and application of the shield-shaped bud grafting method in forest fruit nursery stock grafting production are promoted, and the industrial production efficiency of forest fruit nursery stock bud grafting is improved.

The invention relates to a large-trunk-diameter fruit tree bark grafting method for sealing and fixing by using polystyrene foam, which comprises the following steps: wrapping a thin plastic film on the cross section of a trunk of a stock to effectively isolate external air and moisture, prevent invasion of germs and reduce water loss; the plastic film can effectively prevent polystyrene foam in later construction from invading a grafting interface, and the problem that interface healing is blocked due to pollution is solved. After the scion is inserted through the marked grafting point, the grafting position of the scion and the stock is fixed through polystyrene foam, a stable protection layer is formed after the polystyrene foam is cured, the joint healing quality is effectively improved, and meanwhile the scion fixing strength is enhanced. The protective layer has good heat preservation and moisture preservation performance, and cambium cell division and healing tissue generation are promoted. After the polystyrene foam is completely cured, the outside is wound and wrapped by a shading film, so that ultraviolet degradation is avoided, and water evaporation is reduced. The whole grafting structure is stable, resistant to wind and rain erosion and suitable for efficient standardized operation of large-scale orchards, and the technical threshold and the labor cost are remarkably reduced.

This invention discloses a method for cultivating hardy kiwifruit, comprising the following steps: S1 Cultivating male 'Jinmi Rootstock No. 1' seedlings; S2 Grafting, starting in mid-to-late February, high-position grafting is performed on the 'Jinmi Rootstock No. 1'; First, a grafting method with a grafting diameter of 0.8 cm is used: the scion is 5-7 cm long, each segment retains 2-3 buds, and the lower end is cut into an oblique surface; the rootstock is cut at a diameter of 0.8 cm, then longitudinally cut, with the cut size similar to that of the scion; then the cambium layers of the scion and rootstock are aligned and tied tightly with a thin film strip. Beneficial effects: 'Jinmi Rootstock No. 1' can increase the average yield of hardy kiwifruit cultivars by 25.7%, showing a significant yield increase; 'Jinmi Rootstock No. 1' has a very well-developed root system, strong vitality, and can be directly propagated by cuttings, making seedling cultivation easy; it improves the adaptability of hardy kiwifruit cultivation and reduces the rate of tree death caused by waterlogging.

This invention belongs to the field of fruit tree seedling cultivation and discloses a fruit tree grafting seedling cultivation frame and method suitable for indoor cultivation. The method includes: selecting healthy one-year-old peach seedlings as rootstock and disinfecting them; collecting long fruit branches from peach trees after leaf fall in winter until before New Year's Day, storing them in moist sand or wax-sealed at low temperature; grafting the seedlings indoors at a smooth point 10-12 cm from the roots using a single-bud cleft grafting method; burying the roots of the grafted seedlings in moist sand on the seedling cultivation frame, sealing them with a film, and temporarily planting them in an environment not lower than 15℃ for 7-30 days until the graft union heals; and transplanting the healed grafted seedlings as bud seedlings to a nursery or planting site. The seedling cultivation frame includes a main support, casters, and multiple retractable seedling trays. This invention achieves indoor peach tree grafting seedling cultivation in winter, with a graft survival rate and first-grade seedling delivery rate both exceeding 90%. Seedlings are formed in the same year after planting, begin flowering in two years, and reach full production in three years.

The invention discloses a preparation method of hypercrosslinked macroporous adsorption resin for removing cytokines in blood purification. Macroporous styrene-divinylbenzene resin with low crosslinking degree is prepared from styrene and divinylbenzene, then secondary crosslinking is performed on the macroporous styrene-divinylbenzene resin with the low crosslinking degree by utilizing a Friedel-Grafts method to prepare the hypercrosslinked adsorption resin, residual chloromethyl reacts with enamine to generate dangling double bonds, and then the hypercrosslinked adsorption resin is prepared. And then, polyvinyl pyrrolidone and poly (hydroxyethyl methacrylate) are grafted. The hypercrosslinked adsorption resin prepared by the invention has a huge specific surface area and abundant pore channels, and has superstrong adsorption performance on cell factors represented by TNF-alpha and IL-6, and in addition, polyvinyl pyrrolidone and poly (hydroxyethyl methacrylate) are grafted on the surface of the resin, so that the blood compatibility is improved.

The invention provides a solvent-resistant phase change microcapsule coated with an organic-inorganic hybrid wall and a preparation method of the solvent-resistant phase change microcapsule. The method comprises the following steps: adding an interface grafting agent and a phase change material into a polar solvent for grafting reaction to prepare a core material dispersion liquid; adding an organic matter reaction monomer containing inorganic matter components, a pure organic matter reaction monomer, an initiator and a cross-linking agent into the core material dispersion liquid for in-situ polymerization reaction to prepare a reaction system containing phase change microcapsules; washing, separating and drying to obtain the solvent-resistant phase change microcapsule. According to the method, inorganic components are introduced into a phase change microcapsule wall material by adopting a grafting method and an in-situ polymerization method, so that the solvent resistance of the phase change microcapsule is improved, the particle size of the phase change microcapsule is continuously controllable in micron and nano scales, the distribution range is narrow, the coating rate is high, the preparation process is simple, the energy consumption is low, and industrial production is easy; the method can be widely applied to the fields of cooling liquid, electronic product thermal control, phase change temperature control assemblies and the like.

This invention discloses a spring grafting method for peonies, belonging to the field of peony grafting technology. It includes the following steps: S1. In early spring, one-year-old branches with healthy dormant flower buds are cut from peonies as scions and then sealed; S2. The sealed scions are frozen at -18℃ to -25℃. 12-16 hours before grafting, the frozen scions are taken out, first placed at 2℃-5℃ for 2-4 hours to warm up, and then placed at room temperature for 10-14 hours; S3. The warmed scions are wax-sealed; S4. Ten days before / after the vernal equinox, when the average daily temperature is stable above 15℃, the wax-sealed scions are grafted onto peony rootstock using the ground-digging grafting method; S5. The grafted plants are promptly and completely covered with soil. This invention organically integrates multiple steps, including scion collection timing, low-temperature preservation, gradient warming, scion pretreatment, and specific grafting operations, breaking the time restriction that peonies can only be grafted in autumn and enabling spring grafting.