130 results about "Polyvinyl acetate" patented technology

The invention discloses a seed coating containing an arbuscular mycorrhizal inoculant. The seed coating is prepared from the following components in parts by weight: 25 to 35 parts of the arbuscular mycorrhizal inoculant, 35 to 45 parts of a soil conditioner, 15 to 20 parts of talcum powder and 15 to 20 parts of polyvinyl acetate. The invention further provides a preparation method of the seed coating containing the arbuscular mycorrhizal inoculant and application of the seed coating to reduction of soil heavy metal pollution, increase of disease resistance and stress resistance of crops and promotion of crop growth. The seed coating containing the arbuscular mycorrhizal inoculant wraps the surfaces of plant seeds, provides good nutritional ingredients for growth and development of the seeds, and is beneficial to improving the germination rate of the seeds under heavy metal cadmium stress, reducing soil heavy metal cadmium pollution, improving soil quality, increasing soil fertility and improving disease resistance and stress resistance of crops; growth of seedlings is promoted, and crop quality and yield are improved.

The application discloses a kind of hydrolysis-resistant acetylacetamide modified polyvinyl alcohol and preparation method thereof, and the preparation method comprises the following steps: double vinyl ketone and first and alcohol amine compound are reacted to generate N-(hydroxyalkyl) acetylacetamide intermediate;Then trichloro cyanogen and N-(hydroxyalkyl) acetylacetamide intermediate are reacted to generate 3,5-bis[acetylacetamide alkoxyl] monochloro s-triazine;Finally, 3,5-bis[acetylacetamide alkoxyl] monochloro s-triazine is reacted with PVA in polar solvent to generate AAM-PVA.The AAM-PVA prepared in the application can be used as a protective colloid for polyvinyl acetate emulsion polymerization, and the prepared emulsion adhesive has obvious improvement in water resistance, tensile strength and stability;The raw materials of the application are cheap and easy to obtain, the preparation process is simple, the reaction conditions are mild, and there is no waste water and waste gas emission.

The invention discloses a composite fiberboard and a preparation method thereof, and belongs to the technical field of artificial boards. Comprising the following raw materials in parts by weight: 34-45 parts of wood fiber, 17-26 parts of composite resin, 7-13 parts of hydroxymethyl cellulose, 5-9 parts of aluminate cement, 4-8 parts of talcum powder, 11-16 parts of polyvinyl alcohol, 9-14 parts of polyvinyl acetate emulsion, 7-11 parts of urea-formaldehyde resin adhesive, 5-9 parts of polyacrylate and 1.2-2.5 parts of a composite coupling agent. According to the composite fiberboard, the water resistance of the composite fiberboard can be improved, and the problem that harmful substances containing formaldehyde and the like are released is solved.

The invention discloses a solubility-resistant fluoride-free aqueous film-forming foam extinguishing agent and a preparation method thereof, and relates to the technical field of extinguishing agents. The invention discloses a soluble-resistant fluoride-free aqueous film-forming foam extinguishing agent. The cleaning agent is prepared from the following raw materials in parts by weight: 8 to 12 parts of a compound surfactant, 15 to 20 parts of modified polyvinyl acetate, 3 to 5 parts of modified xanthan gum, 5 to 8 parts of ethylene glycol butyl ether, 4 to 6 parts of propylene glycol, 0.5 to 1 part of benzotriazole, 0.3 to 0.6 part of triethanolamine, 0.2 to 0.4 part of disodium ethylene diamine tetraacetate, 0.8 to 1.2 parts of hydroxyethyl cellulose, 0.1 to 0.3 part of polyether modified silicone oil and 0.05 to 0.1 part of isothiazolinone. 6-9 parts of ammonium dihydrogen phosphate and the balance of deionized water. According to the anti-dissolution fluoride-free aqueous film-forming foam extinguishing agent, fluoride-free components are more environmentally friendly, and the requirement for green development is met; the compound surfactant has a synergistic effect with the modified polyvinyl acetate and the modified xanthan gum, so that the fire extinguishing efficiency and the solubility resistance are improved; the process is clear, parameters are clear, the product stability is good through ultrasonic dispersion and high-pressure homogenization treatment, the performance is optimized through multiple additives, and the application scene is wide.

The application belongs to the technical field of drug dissolution and dispersion, and particularly relates to a bunazosin water-based solution preparation and a preparation method. The bunazosin water-based solution preparation provided by the application comprises the following components: bunazosin, gamma-cyclodextrin, lecithin, polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer, aspartame and water. The above components are mixed to be homogeneous to prepare an oral solution which is uniform, clear and can be stored for a long time. The scheme of the application further enriches the dosage form of bunazosin, improves the convenience of taking bunazosin, and is expected to help improve the oral bioavailability and absorption efficiency of bunazosin. The scheme of the application also provides a reference direction for the mechanism research on the dissolution and dispersion behavior of the insoluble bunazosin macromolecule in a water medium.

The present invention provides a solid dispersion of compound 1 or a pharmaceutical salt thereof, comprising the compound 1 or the pharmaceutical salt thereof as an active ingredient and a carrier material, wherein the carrier material is selected from one, two, or more of polyvinylpyrrolidone (PVP), copovidone, polyvinylpyrrolidone-vinyl acetate copolymer, hydroxypropyl methylcellulose acetate succinate, polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer, hydroxypropyl methylcellulose, polyethylene glycol, and ethyl cellulose, enabling the drug to have good stability, dissolution, and therapeutic effects. The formulation of the present invention provides rapid drug release and can reduce the oral burden of large-dose tablets on menopausal patients, thereby improving treatment compliance and treatment efficiency.

The invention relates to the technical field of road engineering materials, in particular to an asphalt composite additive with warm mixing and odor removing functions. The invention provides an asphalt composite additive with warm mixing and odor removing functions. The asphalt composite additive is prepared from the following components in parts by weight: 50 to 60 parts of polyethylene, 30 to 45 parts of polyvinyl acetate, 20 to 30 parts of maleic anhydride grafted polyethylene, 35 to 50 parts of modified nano activated carbon and 15 to 25 parts of calcium stearate, a metal oxide and a silane coupling agent are loaded on the modified nano activated carbon, and the metal oxide is a mixture of copper oxide, manganese oxide and cerium oxide. The asphalt composite additive with the warm mixing and odor removing functions has the warm mixing and odor removing functions at the same time, after the composite additive is added into asphalt, the pavement performance and the processing performance of the asphalt are not affected, the mixing temperature of the asphalt can be reduced by 25-40 DEG C, and meanwhile the odor removing and smoke removing effects are excellent.

This invention provides an equivalent substitute, its preparation method, and its application for testing the mechanical properties of RDX-based non-aluminum-containing press-loaded explosives under temperature load. The equivalent substitute is prepared by replacing the energetic material RDX in the RDX-based non-aluminum-containing press-loaded explosive formulation with the non-energetic material ammonium sulfate. The equivalent substitute is used to replace the actual explosive for testing its mechanical properties under temperature load. The equivalent substitute, by mass percentage, comprises the following raw material components: 95.5%–96.5% ammonium sulfate, 2%–3% polyvinyl acetate, and 0.5%–1.5% stearic acid, with the total mass percentage of the above components being 100%. The mechanical properties of the molded explosive charge made with the equivalent substitute provided by this invention, such as compressive strength and tensile strength (compressive strength of 2.9-27.3 MPa and tensile strength of 1.1-5.9 MPa at -55 to 70°C), are basically consistent with those of real explosives under different temperature loads. This can truly reflect the changes in the mechanical properties of the actual explosive charge during environmental and aging tests, and can provide data support for the mechanical failure assessment of explosives.

The utility model discloses an anti-slip coiled material packaging film, which relates to the technical field of packaging films and comprises a main film body, an inner composite anti-slip agent layer and an outer composite anti-slip agent layer, a base material layer is arranged in the main film body, the inner composite anti-slip agent layer is arranged at the lower end of the base material layer, a polyurethane waterproof layer is arranged at the upper end of the base material layer, and the outer composite anti-slip agent layer is arranged at the lower end of the polyurethane waterproof layer. Meanwhile, the upper end of the polyurethane waterproof layer is connected with a polyethylene oil-resistant layer, the upper end of the polyethylene oil-resistant layer is provided with a polyvinyl acetate layer, the upper end of the polyvinyl acetate layer is provided with a polyvinyl alcohol layer, the upper end of the polyvinyl alcohol layer is connected with an outer composite anti-slip agent layer, and an adhesive strip is additionally arranged on the left side of the exterior of the main film body. And release paper is additionally arranged outside the sticking strip. According to the anti-skid coiled material packaging film, the friction force of the packaging film can be increased, commodities are prevented from sliding in the packaging process, and the overall practicability and the use efficiency of the coiled material packaging film are improved.

The invention discloses a preparation method of coated gift packaging paper. The preparation method comprises the following operation steps: S1, pulping: respectively pulping bleached sulfate softwood chemical pulp, bleached sulfate broadleaf wood chemical pulp and alkaline hydrogen peroxide bleached poplar chemimechanical pulp, and mixing to form mixed pulp; s2, auxiliary material adding, wet paper sheet forming and pre-drying; s3, coating and sizing are conducted, specifically, the front face and the back face of the paper sheet are coated with a coating respectively, and the coating comprises coating-grade light calcium carbonate, coating-grade talcum powder, a dispersing agent, sodium hydroxide, modified acrylic copolymer emulsion, polyvinyl acetate latex, coating starch, sodium carboxyl cellulose, a lubricating agent and a defoaming agent; s4, carrying out post-drying and carrying out super-soft calendering treatment by adopting eight rollers and seven pressing areas; the invention also provides the coated gift packaging paper prepared by adopting the preparation method, the smoothness of the coated gift packaging paper is greater than 1200s, the roughness of the coated gift packaging paper is less than 1.2 microns, and the coated gift packaging paper completely meets the requirements of the coated gift packaging paper for absorbing and drying gravure or flexographic printing water-based ink.

The invention discloses high-temperature-resistant coated paper and a preparation method thereof, and belongs to the technical field of coated paper. The PE coated paper is prepared from raw materials including PBAT, PLA, a chain extender, modified montmorillonite, polyvinyl acetate, a slipping agent, an antistatic agent and a hindered phenol antioxidant through the steps of melt blending, extrusion granulation, PE coated compounding and the like. Wherein the modified montmorillonite is prepared by reacting specific phenolic acid with tertiary amine in a mixed solvent to generate a grafted compound and compounding the grafted compound with montmorillonite. Compared with the prior art, the coated paper has the advantages of good thermal stability, low wear-resistant loss, simple preparation process and easily available raw materials, is suitable for high-temperature or high-frequency friction use scenes, and has a good application prospect.

The application discloses acetoacetamide modified polyvinyl alcohol and a preparation method thereof, and the preparation method comprises the following steps: reacting p-ester and an acetoacetamide reagent at 20-80 DEG C for 1-3h in a polar solvent to generate N-acetoacetyl p-ester; then, the N-acetoacetyl p-ester is mixed with an alkaline catalyst and polyvinyl alcohol, and is added into a double-screw reaction extruder to generate N-acetoacetyl p-ester modified polyvinyl alcohol crude product; finally, the crude product is powdered, washed with methanol for three times to remove the catalyst and reaction inorganic salt, and is filtered and dried to obtain the N-acetoacetyl p-ester modified polyvinyl alcohol. The AAE-PVA prepared by the application can be used as a protective colloid for polyvinyl acetate emulsion polymerization, has better water resistance than common polyvinyl alcohol, and the water resistance, tensile strength and stability of the prepared emulsion adhesive are obviously improved. The synthesis steps of the application are simple, the safety risk is low, and the reaction yield is high.

This invention discloses a water-soluble environmentally friendly adhesive for colored pencils and its preparation method, belonging to the field of functional adhesive preparation technology. By weight, its components include: 6-8 parts water-based solid acrylic resin, 20-30 parts polyvinyl acetate emulsion, 35-40 parts vinyl acetate-ethylene copolymer emulsion, 5-7 parts functional vinyl acetate-ethylene copolymer emulsion, 30-35 parts vinyl acetate-acrylic emulsion, 5-7 parts water-based vinyl chloride copolymer emulsion, 3-5 parts tackifying emulsion, 1-2 parts adhesion promoter, 0.5-0.8 parts crosslinking agent, 3-5 parts plasticizer, 0.1-0.5 parts additives, 15-18 parts deionized water, and an appropriate amount of ammonia. This environmentally friendly adhesive can achieve good bonding between colored pencil leads and the wood of the pencil barrel. When sharpening, the wood chips of the pencil barrel roll up and are not easily broken, showing good application prospects.

An article is described comprising a first film layer comprising polylactic acid polymer (semicrystalline polylactic acid polymer; amorphous polylactic acid polymer; or a mixture thereof); a second (e.g. polyvinyl acetate) polymer having a Tg of at least 25° C.; plasticizer. In some embodiment, the film layer further comprises inorganic pigment and / or hydrolysis stabilizer. In other embodiments, the film has a net melting endotherm, ΔHnm1, of less than 10 J / g. Also described are methods of making a graphic film.

This invention discloses a modified aeolian sand road base material, composed of the following parts by weight: aeolian sand: 620-635 parts; fine aggregate: 1030-1055 parts; coarse aggregate: 3510-3580 parts; modified aeolian sand powder: 230-265 parts; cement: 50-80 parts; superabsorbent polymer: 0.32-0.96 parts; water: 425-525 parts. The modified aeolian sand is a composite modified aeolian sand of metakaolin, phosphogypsum, and triethanolamine, and is cured using a water glass-polyvinyl acetate composite curing agent. The modified aeolian sand has characteristics such as small particle size, high specific surface area, strong reactivity, and good viscosity. Adding it to base materials can improve their mechanical properties, volume stability, and durability, and it has low cost and good economic benefits, showing good application potential in cementitious materials and pavement materials.

This application relates to the field of artificial stone technology, specifically to an artificial marble and its preparation method. The artificial marble of this application comprises the following components in parts by weight: 100 parts marble powder, 8-12 parts aliphatic polyisocyanate, 20-30 parts polypropylene glycol, 0.2-0.3 parts dibutyltin dilaurate, 10-15 parts cellulose ether modified magnesium lithium silicate, 5-7.5 parts polyvinyl acetate, and 2-3 parts flame retardant. This application uses aliphatic polyisocyanate to replace unsaturated polyester resin, reducing unsaturated double bonds in the system. Combined with cellulose ether modified magnesium lithium silicate and polyvinyl acetate, it improves the mechanical properties of the marble, thereby obtaining an artificial marble with excellent weather resistance, stain resistance, mechanical strength, and flame retardancy.

The invention provides a polyvinyl acetate aqueous dispersion with a self-stabilizing structure and a preparation method of the polyvinyl acetate aqueous dispersion. The polyvinyl acetate aqueous dispersion is prepared from a vinyl acetate monomer and at least one hydrophilic anchoring monomer through a free radical polymerization reaction, wherein the hydrophilic anchoring monomer is embedded into a polyvinyl acetate molecular chain in a polymerization process, so that an obtained polymer molecule forms a self-stabilization dispersion structure with a hydrophilic interface layer in a water phase. A hydrophilic anchoring structure unit is introduced into a polyvinyl acetate molecular chain to form a core-shell type particle structure with a core formed by a hydrophobic polyvinyl acetate chain segment and an outer layer interface formed by a hydrophilic anchoring monomer, so that polymer molecules can spontaneously form a stable dispersion structure in a water phase; the problem that polyvinyl acetate is easy to agglomerate in a water phase is solved from the molecular structure level, so that the polyvinyl acetate aqueous dispersion with uniform particle size and good storage stability is obtained under the condition that no or only a small amount of surfactant is needed.

The present invention provides a solid dispersion comprising lurasidone or a pharmaceutically acceptable salt thereof and a carrier. The carrier material includes polyvinyl acetate phthalate (PVAP), polyvinyl alcohol (PVA), cellulose acetate phthalate (CAP), mesoporous silica, hydroxypropyl methylcellulose (HPMC), polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer, acrylic resin, hydroxypropyl cellulose (HPC), povidone, copovidone, ethylcellulose, polyoxyethylene glycol, hypromellose acetate succinate (HPMCAS), hypromellose phthalate (HPMCP), or a combination thereof.

The invention relates to the technical field of ethylene propylene diene monomer, and discloses an ethylene propylene diene monomer composite material for an automobile sealing strip and a preparation process of the ethylene propylene diene monomer composite material. The ethylene propylene diene monomer composite material comprises the following components in parts by weight: 55-75 parts of ethylene propylene diene monomer, 25-45 parts of ethylene-vinyl acetate copolymer, 2-8 parts of nano titanium dioxide, 0.4-1.5 parts of vinyl acetate polymer, 1-1.8 parts of vulcanizing agent and the like. A polyvinyl acetate molecular chain is grafted on the surface of the nano titanium dioxide, so that the nano titanium dioxide has good compatibility with the ethylene-vinyl acetate copolymer and the ethylene propylene diene monomer, can be uniformly dispersed in the composite material, and has a better reinforcing effect on the material; the prepared EPDM rubber composite material has excellent hardness, tensile strength, elongation at break and tear strength, and can be better applied to the automobile industry fields such as sealing strips.

The invention discloses a glass fiber film-forming agent and a preparation method thereof, and relates to the technical field of glass fiber film-forming agents, the glass fiber film-forming agent comprises the following components by mass: 45-55% of vinyl acetate, 0.25-2% of a silane coupling agent, 0-5% of vinyl versatate, 0.5-3.5% of an emulsifier, 0.5-3% of a protective colloid, 0.02-0.3% of an antifoaming agent, 0.05-0.35% of a pH regulator, 0.04-0.15% of an initiator, 0.01-0.05% of a residual monomer elimination agent, and 40-50% of a dispersion medium; the invention also provides a preparation method of the glass fiber film-forming agent. The invention provides the polyvinyl acetate glass fiber film-forming agent with good bundling property, stiffness and mechanical property and the preparation method of the polyvinyl acetate glass fiber film-forming agent, and the prepared polyvinyl acetate film-forming agent has good comprehensive performance and meets the performance requirements of glass fiber processing and use.

The invention relates to the technical field of resin synthesis, in particular to a synthesis method of polyvinyl acetal resin containing functional particles and an intermediate film. The synthetic method of the polyvinyl acetal resin containing the functional particles adopts vinyl acetate to continuously synthesize the polyvinyl acetal resin, and comprises the following steps: S1, polymerizing the vinyl acetate into polyvinyl acetate; s2, performing alcoholysis on polyvinyl acetate to obtain polyvinyl alcohol; s3, performing condensation on the polyvinyl alcohol and the aldehyde substance to obtain polyvinyl acetal resin; wherein functional particles are added in the step S1 and / or the step S2, the polyvinyl acetal resin is used for manufacturing the intermediate film, and the functional particles are configured to enhance one or more of heat resistance, flame retardance, ultraviolet resistance, sound insulation and light shading performance of the intermediate film. According to the synthetic method of the polyvinyl acetal resin containing the functional particles and the intermediate film, the intermediate film prepared from the polyvinyl acetal resin has excellent comprehensive performance.

The invention belongs to the technical field of medicine, and particularly discloses a rivaroxaban tablet and a preparation method and application thereof, the rivaroxaban tablet is composed of rivaroxaban and a ternary composite carrier; the ternary composite carrier is composed of vitamin E polyethylene glycol succinate, a polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol grafted copolymer and a crystal inhibitor; wherein the mass ratio of the rivaroxaban to the ternary composite carrier is 1: (3-7); the mass ratio of the vitamin E polyethylene glycol succinate to the polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol grafted copolymer to the crystal inhibitor in the ternary composite carrier is 1: 2: 3. According to the rivaroxaban tablet and the preparation method and application thereof, the preparation method is simple in process, good in production continuity, high in mechanization degree and suitable for industrial production, the rivaroxaban tablet prepared through the preparation method is high in dissolution rate, and the bioavailability of the rivaroxaban tablet is remarkably improved compared with that of a preparation on the market.

The application discloses a thermoplastic elastomer material and a preparation method and application thereof, and belongs to the technical field of polymer materials. The thermoplastic elastomer material comprises the following components in parts by weight: 5-30 parts of a thermoplastic elastomer; 5-40 parts of a plasticizer; 1-10 parts of a compatilizer; 0.1-10 parts of an epoxy resin; 0-20 parts of a general plastic; 10-50 parts of glass fiber; and 0-5 parts of a processing aid. The compatilizer is a hydrogenated styrene-polyurethane block copolymer; and the impregnating agent of the glass fiber is one or more of an aqueous polyurethane emulsion, a polyvinyl acetate emulsion, an ester silane coupling agent or a polyester emulsion. The thermoplastic elastomer and the impregnated glass fiber form a good compatibility effect by synergistic effect of the compatilizer and the epoxy resin, so that the tensile strength and the impact strength of the material can be significantly improved.

The invention belongs to the technical field of packaging materials, and particularly relates to a high-toughness degradable polylactic acid film as well as a preparation process and application thereof. The polylactic acid film is composed of 83-91 parts by mass of polylactic acid particles, 0.5-1 part by mass of a plasticizer, 1-5 parts by mass of modified inositol, 5-10 parts by mass of polyvinyl acetate and 0.5 part by mass of a slipping agent. The toughness of the polylactic acid film is improved through the modified cyclohexanehexol, the molecular weight of the polylactic acid film is improved, and the heat resistance of the film is enhanced; and the overall mechanical property of the film is improved by compounding the degradable paper.

The invention discloses a cinacalcet-containing transdermal patch as well as a preparation method and application thereof. The transdermal patch comprises a high-molecular matrix layer, wherein the high-molecular matrix layer comprises cinacalcet, a silicone pressure-sensitive adhesive and one or more high-molecular polymers selected from a water-insoluble cellulose derivative, polyvinylpyrrolidone and a polyethylene caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer. The transdermal patch disclosed by the invention is good in drug permeability and colloid application performance, high in safety, free of skin irritation, high in stability and good in uniformity, and can meet the requirements of clinically treating hyperparathyroidism or hypercalcemia.

The application discloses a preparation method of a heavy metal chelating agent composite material, and the method comprises the following steps: S1, montmorillonite is placed in a dilute acid solution for treatment, and then the montmorillonite is washed, dried, crushed, and ground to obtain montmorillonite powder; S2, polyvinyl acetate is dissolved in a solvent to obtain a blending liquid, the montmorillonite powder is added and stirred uniformly, then ionic monomers and an initiator are added and continuously stirred, and then polyvinylpyrrolidone is added and stirred uniformly; after the stirring is completed, the blending liquid is left to stand, and then the blending liquid is filtered; the obtained product is washed and dried to obtain a modified montmorillonite copolymer composite; S3, the modified montmorillonite is placed in a urea solution for heat treatment, and then the modified montmorillonite is filtered; the obtained product is sequentially washed, freeze-dried, and sieved to obtain the heavy metal chelating agent composite material. The chelating agent composite material can effectively remove heavy metal ions in polluted water.

This invention belongs to the field of photosensitive materials technology, specifically relating to a multi-curing photosensitive adhesive with strong weather resistance and its preparation method. This invention overcomes the limitations of traditional photosensitive adhesives in terms of curing depth and light source compatibility. The oil phase component introduces a fluorosilicone epoxy-polyurethane acrylate composite resin and a multifunctional diluent, integrating epoxy groups, acrylate groups, and siloxane groups on the same molecular chain. Combined with a full-band composite initiator, it achieves rapid response to 365nm UV, 405nm laser, and mercury lamps. Deep cross-linking is achieved through cationic polymerization and moisture condensation, significantly improving adhesion and solvent resistance. The aqueous component uses fluorosilicone-modified polyvinyl alcohol and aminofluorosilicone-modified polyvinyl acetate as amphiphilic emulsifying stabilizers, combined with a gradient emulsification process to form a stable oil-in-water emulsion. Combined with caprolactam-blocked latent curing agents, it achieves long-term storage at room temperature. After heating and unblocking, it cross-links with hydroxyl groups, improving film density and exhibiting ultra-high storage stability and long-lasting weather resistance.

A resin composition according to the present invention contains a cellulose-based material (A), polyvinyl acetate (B), and at least one thermoplastic resin (C) selected from the group consisting of polyethylene, polypropylene, and ethylene-propylene copolymers.

The invention belongs to the technical field of ceramic pigments, and particularly relates to a hand-painted ceramic pigment and a preparation method thereof. The hand-painted ceramic pigment is prepared from the following components in parts by mass: 10 to 20 parts of modified polyvinyl acetate emulsion, 25 to 35 parts of nano silicon PU modified acrylic resin emulsion, 18 to 28 parts of polyurethane waterborne polyurethane resin PUD emulsion, 10 to 20 parts of hand-painted ceramic pigment base material, 1.5 to 3 parts of freeze-thaw resistant agent, 0.1 to 0.2 part of preservative, 0.05 to 0.1 part of mildew preventive, 1 to 2 parts of pH regulator, 5 to 15 parts of color paste, 0.2 to 0.5 part of defoaming agent and 0.2 to 0.5 part of lotus leaf water repellent agent. 0.2 to 0.5 part of an adhesion promoter; 3 to 5 parts of a thickening agent; wherein the anti-freezing and anti-thawing agent is a mixture of a glycol anti-freezing and anti-thawing agent and an ether anti-freezing and anti-thawing agent; the preservative is a mixture of an isothiazolinone preservative and a benzimidazole preservative.

This invention discloses a cold-pressing adhesive, its preparation method, and its application. The cold-pressing adhesive comprises: polybutyl acrylate, polyvinyl acetate, and styrene-butadiene rubber, wherein, by mass parts, the ratio of polybutyl acrylate, polyvinyl acetate, and styrene-butadiene rubber is (100-150):(70-110):(20-40). The preparation method of the cold-pressing adhesive includes: mixing polybutyl acrylate, polyvinyl acetate, and styrene-butadiene rubber, and stirring until homogeneous to obtain the cold-pressing adhesive. The battery separator obtained by coating the cold-pressed lithium battery slurry of this invention can reduce the hot-pressing temperature during battery assembly, reduce the deformation of the battery separator caused by thermal expansion and contraction, reduce the risk of battery degradation during charging and discharging, improve the adhesion between the battery separator and the electrode at room temperature, and increase the battery's service life and safety.