166 results about "Glyceryl Ethers" patented technology

The invention relates to the technical field of agricultural fertilizers, in particular to an organic-inorganic composite silicon-calcium-magnesium fertilizer and a preparation method and application of the organic-inorganic composite silicon-calcium-magnesium fertilizer. The high-temperature activated silicon-calcium-magnesium mineral powder is composed of calcined wollastonite powder, calcined serpentine powder, dolomite powder and zeolite powder; 2%-5% of an organosilane modifier, wherein the organosilane modifier is composed of gamma-aminopropyl triethoxy silane and gamma-glycidyl ether oxypropyl trimethoxy silane, and the organic silane modifier is composed of gamma-aminopropyl triethoxy silane and gamma-glycidyl ether oxypropyl trimethoxy silane; 18%-35% of a functional organic matter complex, wherein the functional organic matter complex is composed of mineral source sodium humate, bioactive small peptide, sodium alginate and polyglutamic acid; and 3%-8% of auxiliary functional components, so that the solubility and the bioavailability of silicon, calcium and magnesium elements in minerals are remarkably improved.

The invention discloses a DA bond polymer with antibacterial and self-repairing functions for a wood surface as well as a preparation method and a use method of the DA bond polymer. Chitosan serves as a wall material, cinnamon essential oil serves as a core material, the cinnamon essential oil and chitosan antibacterial microcapsules are prepared through emulsification, crosslinking and spray drying, and essential oil controlled release is achieved. Then bisphenol A diglycidyl ether DGEBA and furfuryl alcohol FA are used as raw materials, furyl functional epoxy resin FER is prepared under the catalysis of triethylamine TEA, bismaleimide BMI is added, and a DA bond self-repairing polymer is prepared through a DA reaction; and adding 4, 4-diaminodiphenylmethane DDM into the system, reacting with redundant DGEBA to generate a cross-linked polymer network, and adding the microcapsules into a DA bond semi-interpenetrating self-repairing network solution to obtain the DA bond polymer. A thin film formed by brushing and curing wood has antibacterial and self-repairing functions, scratches and microcracks on the surface of the wood can be repaired, and microbial erosion is inhibited.

The invention discloses a single-component high-heat-resistance type epoxy adhesive and a preparation method of the single-component high-heat-resistance type epoxy adhesive. The adhesive is prepared from the following components in parts by weight: 30 to 40 parts of N, N-4, 4 '-diphenylmethane bismaleimide; 50 parts of bisphenol F epoxy resin; 36.47 parts of 4, 4 '-diaminodiphenyl sulfone; 20 to 40 phr of phenyl glycidyl ether; 1 to 2 phr of two terminal type epoxy silicone oil; 4 to 6 phr of hydroxyl-terminated polyether sulfone; 10 to 20 phr of boron nitride, the surface of which is modified by gamma-glycidyl ether oxypropyl trimethoxy silane; and 1 to 3 phr of an adhesion promoter. According to the adhesive disclosed by the invention, the heat resistance, the mechanical property, the dimensional stability, the process adaptability and the like are synergistically improved, the use requirements of an aviation structural part on long-term service at 150-180 DEG C and an electronic packaging device on the condition of short-time reflow soldering at about 200 DEG C can be met, and the reliability of the adhesive in a high-temperature environment is remarkably improved.

The invention discloses a peracetylated polysaccharide derivative mixing accelerator as well as a preparation method and application thereof, and relates to the technical field of polysaccharide derivatives. Alkyl polyglucoside and glycidyl ether are subjected to etherification reaction to obtain polysaccharide derivatives; and adding acetic anhydride and an organic weak base catalyst into the polysaccharide derivative, and carrying out esterification reaction to obtain the peracetylated polysaccharide derivative. The obtained peracetylated polysaccharide derivative can be used for reducing the minimum miscible pressure of CO2 in an offshore oilfield. The polysaccharide derivative provided by the invention is simple in synthesis process, and the molecular activity of the polysaccharide derivative can be regulated and controlled by changing the number of carbon dioxide-philic groups and the length of oleophylic unsaturated hydrocarbon chains, so that the polysaccharide derivative can be used in the CO2 oil displacement process of oilfield exploitation, and the minimum miscible pressure in the CO2 oil displacement process is effectively reduced.

The invention discloses a hyperbranched polyether branching agent with an adjustable structure and a preparation method and application thereof.According to the branching agent, 3-butene-1-alcohol serves as an initiator, a hyperbranched skeleton is constructed through anion ring-opening polymerization reaction and diglycidyl ether, then esterification and end capping are conducted through anhydride, and the hyperbranched polyether branching agent with the adjustable structure is obtained. The tail end of the hyperbranched polyether contains vinyl double bonds, and the ester group structure of the hyperbranched polyether can be regulated and controlled. Different diepoxy compounds are selected to control a main chain structure, and different anhydrides are used for regulating and controlling the chemical composition of branched chains, so that accurate design of molecular weight, polarity and number of functional groups of the branching agent is realized. The branching agent has excellent dissolvability in common organic solvents, and solves the problem of poor dissolvability of the traditional polydiene branching agent. When the star-shaped branched butyl rubber is applied to the synthesis of star-shaped branched butyl rubber, the distribution and number of branched points can be accurately regulated and controlled, the weight-average molecular weight and molecular weight distribution index of the rubber are remarkably improved, and the side reaction of gel is avoided.

The invention relates to the technical field of sound insulation materials, in particular to flame-retardant epoxy resin composite diatomite sound insulation cotton and a preparation method thereof. The flame-retardant epoxy resin composite diatomite sound insulation cotton is prepared from epoxy resin, diatomite, a composite flame retardant, a coupling agent, a curing agent, a diluent, a foaming agent and a charring agent. The composite flame retardant at least comprises ammonium polyphosphate and melamine; the coupling agent is a silane coupling agent or a titanate coupling agent; the curing agent is methyl tetrahydrophthalic anhydride; the diluent is n-butyl glycidyl ether; the foaming agent is azodicarbonamide; the charring agent is pentaerythritol. By optimizing the diatomite modification process and combining physical dispersion and chemical modification means, the compatibility of the diatomite and the epoxy resin is greatly improved, the pain point of filler agglomeration in the traditional process is thoroughly solved, the porous sound insulation potential of the diatomite is fully released, and the sound absorption and sound insulation performance of the material is qualitatively improved.

The invention relates to low-viscosity high-strength two-component epoxy winding resin and a preparation method and application thereof, the resin comprises a component A and a component B, and the mass ratio of the component A to the component B is 100: (80-110); the component A consists of the following raw materials in percentage by mass: 70-85% of modified epoxy resin, 14-20% of a functional reactive diluent and 1-10% of an impregnating compound; the modified epoxy resin is formed by compounding bisphenol A epoxy resin and polyether modified epoxy resin, and the functional active diluent is formed by compounding 1, 6-hexanediol diglycidyl ether and phenyl glycidyl ether; the component B is prepared from the following raw materials in percentage by mass: 85-96% of a composite anhydride curing agent, 2.5-10% of a high-efficiency accelerant and 1.5-5% of a defoaming agent; the composite anhydride curing agent is compounded by methyl tetrahydrophthalic anhydride and succinic anhydride, the efficient accelerant is compounded by imidazole and phosphine, and the defoaming agent is an organic silicon defoaming agent.

The invention relates to the technical field of adhesives, and particularly discloses an adhesive for repairing a glass fiber reinforced plastic pipeline and a preparation process. The invention relates to an adhesive for repairing a glass fiber reinforced plastic pipeline. The adhesive is prepared from the following raw materials: modified bisphenol A epoxy resin, a curing agent, a glass fiber reinforced filler, a silane coupling agent, phenyl glycidyl ether, hydroxyl-terminated nitrile rubber and an antioxidant 1076, the modified bisphenol A type epoxy resin is prepared by grafting and modifying bisphenol A type epoxy resin through amino-terminated polyether; the glass fiber reinforced filler is prepared from hydroxylated glass fibers and a graphene-carbon nanotube compound through covalent grafting. The adhesive can be used for emergency repair of glass fiber reinforced plastic pipelines, has the advantages of high low-temperature curing speed, high bonding strength and good durability, can effectively avoid cracking and leakage of repaired parts, and is adaptive to low-temperature and high-pressure complex repair working conditions. The preparation process is simple and convenient to operate and high in controllability, the adhesive with uniform performance can be stably prepared, and the repair efficiency and repair quality are guaranteed.

The invention discloses a water-based composite coating with a hybrid structure, which comprises a modified acrylate emulsion which can form an organic-inorganic hybrid structure and contains an epoxy group and a furan group, a reinforced phase dispersion liquid containing a maleimide group, a water-based polyurethane emulsion, deionized water and other functional aids. Wherein the modified acrylate emulsion is obtained by carrying out emulsion free radical copolymerization on glycidyl methacrylate and furfuryl methacrylate, namely other acrylate substances; the reinforced phase dispersion liquid is obtained through maleimide addition and substitution reaction and grafting with the modified nano silicon dioxide. The invention further discloses a preparation method of the hybrid-structure water-based composite coating. The preparation method comprises the steps of preparation of the organic-inorganic hybrid emulsion, preparation of the wax-containing composite emulsion and preparation of the hybrid-structure water-based composite coating. According to the preparation method, a Diels-Alder reaction is taken as a core, and the hybrid-structure water-based composite material which is good in physical property, repairable and convenient in process method is prepared.

This application belongs to the technical field of grouting materials for tunnel engineering, specifically relating to a grouting material suitable for tunnel rock strata reinforcement and its preparation method. It includes component A and component B; by weight, component A comprises: 75-85 parts of a first base material, 10-20 parts of a coupling agent, and 2-5 parts of a catalyst; component B comprises: 70-80 parts of a second base material and 15-25 parts of a modifying accelerator; wherein, the first base material is a water glass solution, and the physicochemical properties of the water glass solution meet the following conditions: modulus > 2.5, Baume degree < 40°Bé; the second base material is composed of isocyanate compounds and glycidyl etheroxypropyl cage-like polysilsesquioxane in a weight ratio of 100:(11-23); the modifying accelerator includes polyvinylpyrrolidone and dicarboxylic acid alkyl ester compounds. The two base materials synergistically cure at low temperature to form a highly cross-linked organic-inorganic composite network, thereby significantly improving the compressive strength of the solidified body.

The application belongs to the technical field of soft capsules, and discloses a starch-based soft capsule material and a preparation method thereof. The preparation method comprises the following steps: mixing wheat starch and deionized water, adding a sodium periodate solution to react, so as to obtain dialdehyde starch; reacting the dialdehyde starch with glycidyl methacrylate and triethylamine, so as to obtain grafted modified starch; mixing the grafted modified starch with modified nano-silicon dioxide, and reacting after ultrasonic oscillation, so as to obtain nano-silicon dioxide composite modified starch; mixing the composite modified starch with polyvinyl alcohol and polyvinylpyrrolidone, so as to obtain a film forming solution; and after the film forming solution is cast and dried, hot pressing is performed, so that the starch-based soft capsule material is finally obtained. The starch is subjected to multiple hydrophobic modifications, so that the hydrophilic performance is reduced, and the stability of the soft capsule is improved.

The invention belongs to the technical field of insulating materials, and particularly provides a high-strength insulating material, a preparation method and a disc insulator. The invention relates to a high-strength insulating material, which is prepared from the following components: epoxy resin, a maleic anhydride-1-octene copolymer, SiO2 (at) COF-NH2, butyl glycidyl ether and 4, 4 '-diaminodiphenyl-methane. The high-strength insulating material prepared by the preparation method disclosed by the invention is excellent in mechanical property, and can keep excellent insulating property at room temperature and high temperature.

This invention relates to the field of polyurethane foam materials, specifically, to a preparation process for an aging-resistant and flame-retardant polyurethane foam material. The preparation process includes the preparation of a composite flame retardant, the preparation of component A, and the preparation of the polyurethane foam material. This invention integrates the composite flame retardant into the cross-linked network of the polyurethane foam material via chemical bonds. The composite flame retardant is prepared by grafting a phosphorus-containing flame-retardant structure onto the cage-like polysilsesquioxane structure after a ring-opening reaction between the epoxy groups in glycidyl etheroxypropyl cage-like polysilsesquioxane or octacyclooxycyclohexylethyl cage-like polysilsesquioxane and the acidic hydroxyl groups in diphenyl phosphate. The composite flame retardant of this invention is less prone to migration, precipitation, or loss, and improves the rigidity and aging resistance of the polyurethane matrix through its rigid cage structure and benzene rings, thereby improving flame retardant performance while reducing adverse effects on the mechanical properties of the foam material.

The application belongs to the technical field of sand consolidation agent preparation, and particularly relates to a sand consolidation agent and a preparation method thereof. The sand consolidation agent is composed of component A and component B. The component A is composed of the following raw materials: a diphenyl phenolic epoxy resin, hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene, modified nano calcium zirconate, cage octakis(aminophenyl)silsesquioxane, n-butyl glycidyl ether, KH-550 silane coupling agent, polyether amine, fumed silica and defoaming agent. The component B is composed of the following raw materials: polyborosilazane and 2-ethyl-4-methyl imidazole. The cage octakis(aminophenyl)silsesquioxane in the raw material of the sand consolidation agent strengthens the network structure stability through chemical bonding, the hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene realizes thermal stabilization through chemical bonding and physical dispersion, and the modified nano calcium zirconate provides physical support. The three components synergistically improve the heat resistance of the system.

The present disclosure relates to a composite material for application to a bone defect site to promote new bone growth at the site comprising: a combination of freeze-dried mineralized bone allograft particles; and a monophasic gel comprising cross-linked hyaluronic acid; wherein the hyaluronic acid is cross-linked by a cross-linking agent, the cross-linking agent being a diglycidyl ether. The present disclosure also relates to a method to obtain a composite material for application to a bone defect site to promote new bone growth at the site comprising mixing freeze-dried mineralized bone allograft particles with a monophasic gel comprising hyaluronic acid; and to a bone regenerative material comprising the composite material as defined herein for use in a method of treating a patient suffering from a degenerative bone condition, bone loss, bone deficiency or bone atrophy.

The application discloses an end hexaazido nitrate polyether adhesive and a synthesis method thereof. The method first takes triazido neopentyl alcohol and glycidyl ether nitrate as raw materials, boron trifluoride-ether complex as a catalyst, and obtains triazido neopentyl polyglycidyl ether nitrate alcohol through cation ring-opening polymerization reaction; then takes triazido neopentyl polyglycidyl ether nitrate alcohol and hexamethylene diisocyanate as raw materials, dibutyl tin dilaurylate as a catalyst, and obtains end hexaazido polyglycidyl ether nitrate through addition reaction, namely the end hexaazido nitrate polyether adhesive. The application is mainly used for solid propellants, is used for synthesizing polytriazole elastomers, improves the content and crosslinking density of hard segments, promotes microphase separation of the elastomers, and thus improves mechanical properties.

The application relates to the technical field of polyols, and particularly discloses a high-functionality plant phenol-based polyether polyol, a preparation method thereof and a polyurethane adhesive. The high-functionality plant phenol-based polyether polyol is prepared from plant phenol glycidyl ether and a dihydroxyl compound with a molar ratio of 1:(1.8-2.2). The preparation method comprises the following steps: obtaining a polyol intermediate by reacting the plant phenol glycidyl ether and the dihydroxyl compound under the action of a first catalyst, and then obtaining the product by reacting the polyol intermediate under the action of a second catalyst. The high-functionality plant phenol-based polyether polyol has multiple high-reactivity hydroxyl groups, significantly improves the hydroxyl content and the reactivity of a plant phenol-based high-molecular material, and widens the application range.

An organic silicon resin toughening agent, a single-component high-strength epoxy structural adhesive, and the preparation method thereof. The organic silicon resin toughening agent is prepared by reacting epoxy modified hydrogen-containing silicone oil with vinyl six-membered cyclic oligomeric silsesquioxane; The epoxy modified hydrogen-containing silicone oil is prepared by reacting allyl alcohol glycidyl ether with dihydrogen-terminated hydrogen-containing silicone oil. The organic silicon resin toughening agent with a circular network structure unit synthesized by the present disclosure has better high and low temperature resistance compared to toughening agents such as nitrile rubber and core-shell structure rubber. While improving the toughness of single-component high-strength epoxy structural adhesive, it can significantly enhance the high and low temperature resistance of single-component high-strength epoxy structural adhesive.

The present application relates to the field of hair preparations, in particular to a composition with anti-hair loss and oil control functions and a preparation method thereof.The raw materials of the composition include diaminopyrimidine oxide, yeast / zinc fermentation product, nicotinamide, lactobacillus / soybean milk fermentation product filtrate combined with PPG-13-decyltetradecinol polyether-24, PPG-70 polyglyceryl-10 ether, African neem bark extract, Anemarrhena asphodeloides root extract, Panax ginseng root extract, Zingiber officinale root extract, Polygonum multiflorum root extract, humectant, emollient and water.The composition has excellent anti-hair loss and oil control effects, high stability and can still exist stably in a high temperature environment.

This application discloses a long-term, non-destructive hydrophilic modification method for polytetrafluoroethylene (PTFE) separation membranes, relating to the field of separation membrane material technology. The modification method includes: removing impurities from the PTFE separation membrane to obtain a pretreated PTFE separation membrane; immersing the pretreated PTFE separation membrane in an aqueous solution of a surfactant to obtain an interface-activated PTFE separation membrane; immersing the interface-activated PTFE separation membrane in an aqueous solution of an active monomer for a first crosslinking step to obtain a pre-modified PTFE separation membrane, wherein the active monomer is 3-glycidyl etheroxypropyltrimethoxysilane; immersing the pre-modified PTFE separation membrane in an aqueous solution of a crosslinking agent for a second crosslinking step, followed by rinsing and drying to complete the long-term, non-destructive hydrophilic modification of the PTFE separation membrane, wherein the crosslinking agent is a water-soluble polymer containing multiple primary amine groups.

A glycerol ether compound that has a boiling point of more than 250℃ can function as a low-VOC coalescent in aqueous coating formulations.

This invention discloses a method for preparing a high-barrier biodegradable material, comprising the following steps: A) Raw material pretreatment: Drying solid raw materials separately in a vacuum drying oven at 60-80℃ for 6-12 hours until the moisture content is below 0.05%; B) Melt blending: Mixing the dried raw materials with the remaining raw materials in a specific ratio until homogeneous. This invention significantly improves the barrier properties of the material through the synergistic effect of benzyl glycidyl ether, transesterification modified monomers, 1,4-succinic acid, nano-montmorillonite, and epoxy-modified graphene oxide. A balanced mechanical property is achieved through the rational ratio of polylactic acid and polybutylene adipate-terephthalate, as well as the effects of catalysts, chain extenders, and compatibilizers. The material achieves a degradation rate of 85.2% within 90 days, exhibiting good biodegradability and meeting environmental protection requirements. Through an optimized melt blending process, the material possesses good processing performance and can be molded using conventional plastic processing equipment, facilitating industrial production.

The application discloses a composite flocculant based on aluminum chloride and a preparation method thereof, and belongs to the technical field of flocculant preparation, and is used for solving the technical problem that the stability and flocculation performance of the flocculant need to be further improved in the prior art; the branched polymer containing polycarboxyl groups is prepared by the reaction of tris(2-aminoethyl)amine and pyromellitic dianhydride, and the taurine groups are introduced to obtain the sulfobranched polycarboxyl polymer; the titanium phosphorus silicon aminopropyl composite is synthesized by using the sol-gel method, and the inorganic-organic network combination is realized; the polyimidazolium-hydroxy ether is obtained by the reaction of imidazole, epichlorohydrin and bisphenol A diglycidyl ether; the composite flocculant is formed by the reaction of the three under the acidic condition, the composite flocculant combines the polycarboxyl groups, the sulfonic acid groups, the imidazolium groups and the inorganic-organic skeleton, has high charge density, good adsorption and bridging performance, can rapidly form stable flocs, and can effectively remove the suspended particles and organic pollutants in water.

Disclosed is a novel room-temperature curable bio-based epoxy vitrimer with a simple design of the chemical structure. A hempseed oil-derived glycidyl ester type epoxy (HOEP) was synthesized and then blended with a bisphenol A epoxy (DER331) to manipulate the properties of the resulting vitrimer s. An aliphatic amine hardener, diethylenetriamine (DETA), was selected as hardener to realize the room temperature curing in presence of triethanolamine (TEOA) as the catalyst. Unlike the traditional glycidyl ether epoxy-amine the thermosets which are based on sable C—N and ether linkages, the epoxy vitrimer herein includes ester bonds with HOEP and hydroxyls formed from the reaction of amine and epoxy in its cross-linked network. Dynamic transesterification (DTER) between the ester bonds and hydroxyls take place at elevated temperatures, imparting the vitrimer significant stress relaxation behavior and repairability. This provided a viable method to produce room temperature curable epoxy vitrimer s.

The application relates to a gold nanoparticle array preparation method with strong stability and reusability, high cysteamine-stabilized gold nanoparticles are prepared first, the spacing between the gold nanoparticles is changed by utilizing the coulomb repulsion between the gold nanoparticles, then the gold nanoparticle solution is added dropwise to a glass surface modified by gamma-glycidoxypropyltrimethoxysilane to react, stable covalent bonds are formed, and gold nanoparticle arrays with uniform distribution on the glass surface can be obtained after the reaction. The preparation does not require high temperature, the experimental operation is simple and convenient, the gold nanoparticles are arranged in order and closely, have high detection sensitivity, have strong ultraviolet absorption capacity, good stability, reusability, salt resistance and low background interference, and can be reused. The gold nanoparticle array can realize detection analysis on high-salt-content samples in surface-assisted laser desorption ionization mass spectrometry and be used for rapid analysis of small molecule compounds in positive and negative ion dual modes.

To provide a low-viscosity resin composition which uses a flexible epoxy resin and a diluent in combination and gives a cured product having high conductivity.SOLUTION: A flexible epoxy resin and a reactive diluent having a structure (Gly-O-R-O-Gly) in which two glycidyl ether groups (- O-Gly) are bonded to a divalent aliphatic hydrocarbon group (R) and having a viscosity of ≤ 500 mPa s at 25 °C. are used in combination.SELECTED DRAWING: None

The application provides an anti-high-temperature solid-phase-free drilling fluid and a preparation method thereof, and belongs to the technical field of drilling fluids in petroleum engineering. The anti-high-temperature solid-phase-free drilling fluid comprises the following components: an anti-high-temperature tackifier, an anti-high-temperature fluid loss reducer, a high-temperature stabilizer, a nano plugging agent, a pH regulator, a weighting agent and water; wherein the anti-high-temperature tackifier is a copolymer with allyl glyceryl ether, 2-acrylamide-2-methylpropanesulfonic acid and N-vinylpyrrolidone as raw materials; and the anti-high-temperature fluid loss reducer is a 2-acrylamide-2-methylpropanesulfonic acid self-polymer or a copolymer with other acrylamide monomers. The system has good rheological property, temperature resistance and fluid loss reduction performance, and is low in cost.

The application discloses an adsorbent for removing protein-bound toxins and middle-molecular toxins and a preparation method thereof, and belongs to the technical field of polymer materials, and comprises the following steps: polystyrene-based white ball preparation, amine immobilization and film coating.The application has the beneficial effects that: a kind of adsorbent capable of adsorbing protein-bound toxins and middle-molecular toxins is prepared by adding a pore-forming agent under the participation of styrene monomers, polyvinyl benzene series, glycidyl methacrylate and 4,4'-bis(methacrylamido)-azobenzene, the adsorption effect is good, and the adsorbent has high selectivity; the process method is simple, green and environment-friendly; glycidyl methacrylate and modified cyclodextrin are added, the hydrophilicity of the adsorbent is enhanced, the blood compatibility of the adsorbent is improved, and the adsorption effect of the adsorbent is enhanced through amine group immobilization.

The invention discloses a liquid microbial fertilizer and a preparation method thereof, and belongs to the technical field of liquid fertilizers. The bacterial fertilizer is prepared from microbial multilayer microcapsules, organic matter fermentation liquor, humic acid, trehalose, xanthan gum, nanocrystalline cellulose and water. The microbial multilayer microcapsule is designed through a multilayer structure and comprises mesoporous silica as a core layer to adsorb a compound microbial agent, an inner shell is a hydrophobic breathable pH / enzyme double-response membrane formed by reacting diglycidyl ether terminated polydimethylsiloxane with N-formyl-L-histidine and then reacting with chitosan, and an outer shell is a hydrophobic breathable pH / enzyme double-response membrane formed by chitosan. The middle layer is a tannic acid-iron complexing layer, and the outer shell is formed by cross-linking N, N '-diallyl-L-tartar amide and a polymer and loading zinc-aluminum layered double hydroxides on the N, N'-diallyl-L-tartar amide and the polymer. The micro-capsule can effectively protect microorganisms, prolong the shelf life and trigger cascade release in a rhizosphere acid environment, zinc and molybdenum nutrients are released firstly, then the microorganisms are released, and precise colonization and synergistic interaction are achieved.