52 results about "2-hydroxypropyl acrylate" patented technology

The invention discloses a water-based polyurethane composite emulsion and a preparation method thereof. The preparation method is characterized by comprising the following steps: by using acetone or butanone and acrylic monomer as solvents, polymerizing diisocyanate (HDI), isophorone diisocyanate (IPDI), mixed polyester polyalcohol, dihydroxymethylpropionic acid, 1,4-butanediol, trimethylolpropane monoene propyl ether, 2-hydroxypropyl acrylate and 2-hydroxyethyl acrylate to obtain carboxylic polyurethane; neutralizing with tertiary amine, and removing the solvents to obtain a self-emulsified double-bond-containing water-based polyurethane anionic emulsion; and by using the emulsion as a seed, adding acrylate monomer and a right amount interpenetrating-network crosslinking agent monomer to carry out pre-emulsification, and carrying out seed emulsion polymerization to obtain the composite emulsion in an interpenetrating network structure. The invention has the advantages of energy saving, environmental protection, high early bonding force, safe and reliable technique and stable product quality.

The invention discloses a high-solid-content high-gloss quick-drying water-soluble hydroxy acrylic resin and a preparation method thereof. The monomers in the monomer-phase solution B is composed of 0-35 wt% of methyl methacrylate, 20-50 wt% of styrene or toluene isoborneol acrylate and toluene cyclohexyl acrylate; 5-15 wt% of methyl acrylate or butyl acrylate or methyl acrylate and butyl acrylate mixture, 5-15 wt% of functional monomer, 15-20 wt% of 2-hydroxyethyl acrylate or 2-hydroxypropyl acrylate, 8-15 wt% of acrylic acid or methacrylic acid and 1-2 wt% of chain-transfer agent. The invention aims to provide a high-solid-content high-gloss quick-drying water-soluble hydroxy acrylic resin, thereby solving the problem of high pollution in the traditional solvent-type hydroxy acrylic resin and the problem that a great amount of organic solvent is needed for dilution when the paint prepared from high-solid-content hydroxy polyacrylate is sprayed, and overcoming the defects of insufficient gloss and fullness and poor drying property in the water-based hydroxy acrylic resin. The invention also discloses a preparation method of the water-soluble hydroxy acrylic resin.

The invention discloses an antistatic finishing agent for wool and wool blended fabrics and a preparation method thereof. The antistatic finishing agent comprises the following components in parts by weight: 2-5 parts of polydimethylsiloxane, 1-3 parts of polymethyl hydrogen siloxane, 10-20 parts of butyl acrylate, 1-3 parts of methylparaben, 10-20 parts of glycerol, 0.2-0.6 part of potassium alkyl benzene sulfonate, 3-8 parts of 2-hydroxypropyl acrylate, 2-5 parts of calcium chloride, 5-8 parts of polyethyleneglycol stearate and 80-100 parts of water. The fabric treated by the antistatic finishing agent has greatly lower surface resistance, higher soaping resistance and favorable softness.

The invention discloses a water-based dry-type complex film adhesive and a preparation method thereof, belonging to the field of preparation of adhesive. The preparation method of the complex film adhesive comprises the following steps: by using monomers, an emulsifier, an initiator, a buffering agent, deionized water, a pH regulator and water-based assistants as raw materials, emulsifying, carrying out seed reaction and polymerization reaction, and compounding to obtain the complex film adhesive of which the solid content is 45-55%, wherein the monomers comprise a hard monomer, soft monomers and functional monomers; the hard monomer is styrene; the soft monomers comprise butyl acrylate and 2-ethylhexyl acrylate; the functional monomers comprise acrylic acid or methacrylic acid, 2-hydroxyethyl acrylate or 2-hydroxypropyl acrylate, and diallyl phthalate; and the emulsifier comprises ammonium alkyl ether sulfate, sodium sulfosuccinate and sodium allyloxysulfonate in a weight ratio of 2:1:(0.4-0.8). The complex film adhesive has the advantages of high bonding strength, favorable affinity and covering performance for ink, and environment protection since the content of VOCs (volatile organic compounds) is lowered.

The invention discloses an emulsion pressure sensitive adhesive for a surface protection film and a preparation method and application thereof. The emulsion pressure sensitive adhesive comprises a component A and a component B, wherein the component A is polyacrylate emulsion synthesized by butyl acrylate, ethyl acrylate, 2-hydroxypropyl acrylate and carboxyl-containing functional monomer through a pre-emulsification semi-continuous polymerization process; and the component B is pentaerythritol tris[3-(1-aziridinyl)propionate]. The emulsion pressure sensitive adhesive overcomes the defects that a pressure sensitive adhesive for a protection film has low initial adhesion and peel strength, and the prepared protection film has low adhesion to aluminum sections with fluorocarbon coatings and cannot be used for protecting the surfaces of the aluminum sections with the fluorocarbon coatings in the prior art; and the protection film prepared from the emulsion pressure sensitive adhesive for the surface protection film still has the characteristics of good initial adhesion, high peel strength and good adhesion to the aluminum sections with the fluorocarbon coatings and aluminum-plastic composite panels under the condition of a small coating amount, has high high-temperature high-humidity aging resistance, and ensures that residual adhesive and flecks are avoided and the aluminum sections with the fluorocarbon coatings and the aluminum-plastic composite panels are not polluted after the protection film is peeled.

The invention discloses a high-solid-content finishing oil-based acrylic resin for automobiles and a preparation method thereof, which belong to the field of automobile paints and solve the problems of low solid content, high viscosity, poor solubility and the like in the existing acrylic resin paint. The resin contains acrylic acid, styrene, butyl acrylate, hydroxyethyl methacrylate, methyl methacrylate, methacrylic acid, butyl methacrylate, 2-ethylhexyl acrylate, n-dodecyl mercaptan, lauryl methacrylate, isoborneol methacrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 100# solvent oil, di-tert-pentyl peroxide, glycidol tert-carboxylate and a resin reactive diluent. The solid content can reach 90%. The acrylic resin has the advantages of favorable dilution property and low viscosity. The self-made reactive diluent can greatly enhance the water resistance and acid resistance of the paint. The construction solid content of the resin is nearly 70%. The acrylic resin greatly lowers the discharge of VOC (volatile organic compound), and is environment-friendly and practical.

The invention relates to a 3C paint, particularly a high-solid low-VOC (volatile organic compound) benzene-free solvent-type acrylic resin. The high-solid low-VOC (volatile organic compound) benzene-free solvent-type acrylic resin is a benzene-free system and is composed of a component A, a component B and a component C. The component A is composed of butyl acetate and propylene glycol methyl ether acetate. The component B is composed of methyl methacrylate, styrene, 2-hydroxypropyl acrylate, butyl methacrylate, butyl acrylate, acrylic acid and tert-butyl peroxybenzoate. The component C is composed of tert-butyl peroxybenzoate and butyl acetate. When being used as a finish paint matched with the primer for 3C electronic products, the resin has the advantages of favorable matching property, higher hardness, higher wear resistance, excellent alcohol resistance, excellent chemical resistance, excellent artificial sweat resistance, excellent cold / heat shock resistance, excellent high-temperature / high-dampness resistance, excellent artificial aging resistance and the like. The resin has high solid content, low viscosity and lower VOC, is more environment-friendly when being used as a benzene-free system, and has higher market competitiveness.

The invention relates to a water-based sealing compound adhesive emulsion which is mainly composed of butyl acrylate, methyl methacrylate, vinyl acetate, polyvinyl alcohol, an emulsifier, a tackifier, methacrylic acid, 2-hydroxypropyl acrylate, an initiator and deionized water. The preparation method mainly comprises the following steps: (1) preparing a preemulsion; (2) carrying out seed emulsion polymerization; (3) carrying out core monomer polymerization; (4) carrying out shell monomer polymerization; (5) curing by keeping the temperature; and (6) discharging. The water-based sealing compound adhesive emulsion can form a film at lower temperature; and the water resistance and adhesive property stability of the adhesive emulsion are enhanced.

The invention provides an anti-scaling disperser, which comprises acroleic acid-acrylate-petroleum sulfonate copolymer, acrylic acid-2-hydroxypropyl acrylate-AMPS copolymer, maleic anhydride-acrylic acid copolymer, zinc chloride and water, the invention also provides the use of the anti-scaling disperser in industrial water treatment systems. The formulation of the invention can be charged by zinc salts for the treatment of low-medium hardness water, and to increase the inhibition rate of the formulation.

The invention relates to a preparation method of low-gloss extinction electrophoretic paint. The low-gloss extinction electrophoretic paint is prepared from acrylic resin and amino resin, wherein theacrylic resin is prepared from the following raw materials in parts by mass: 3-4 parts of isooctyl methacrylate, 6-9 parts of n-butyl acrylate, 5-8 parts of methyl methacrylate, 1-3 parts of styrene,0.5-1 part of acrylic acid, 1-2 parts of 2-hydroxyethyl methacrylate, 3-4 parts of 2-hydroxyethyl acrylate, 3-4 parts of 2-hydroxypropyl acrylate, 2-6 parts of polycarbonate, 0.05-0.3 part of dinonylnaphthalenesulfonic acid, 0.08-0.2 part of composite initiator, 1-2 parts of neutralizer, 0.01-0.02 part of defoamer, 8-15 parts of n-butanol, 8-15 parts of isopropyl alcohol and 10-50 parts of deionized water. The finally prepared electrophoretic paint is good in extinction effect (being less than 10 degrees when being detected by using a 60-degree glossmeter), can be stored for one year or longer, and is free from stratification phenomenon and good in stability; furthermore, a paint film is good in flatness and high in anti-pollution capacity.

The invention relates to an acrylate emulsion pressure-sensitive adhesive for beautiful textured paper masking tapes, and a preparation method thereof. The provided acrylate emulsion pressure-sensitive adhesive is prepared from the following components through a pre-emulsification semi-continuous polymerization technology: 2-ethylhexyl acrylate, butyl acrylate, methylbutyl acrylate, 2-hydroxypropyl acrylate, carboxyl-containing functional monomers, internally-crosslinked polyacrylate monomers, and a chain transfer agent. The prepared acrylate emulsion pressure-sensitive adhesive has the advantages of high solid content, low gel content, and good stability, and can be used as a single-component adhesive directly.

The invention relates to a water-based flocking adhesive. The flocking adhesive is characterized by being prepared from the following raw materials, in parts by weight: 20-30 parts of a water-solubleterminal acrylate hyperbranched polyester, 5-10 parts of 3-chloro-2-hydroxypropyl acrylate ionized modified hyperbranched polyethyleneimine, 30-40 parts of hydroxyl terminated water-based polyurethane, 1-5 parts of a blocked isocyanate crosslinking agent, 1-3 parts of D-mannitol-1,6-bis(2-isocyano-3-methyl-2-butenoate), 0.5-1 part of a fluorine-containing trihydroxysilane compound, 2-5 parts of anemulsifying agent, 0.1-0.5 part of an initiator, and 50-60 parts of water. The invention also discloses a preparation method and use method of the water-based flocking adhesive. The water-based flocking adhesive disclosed by the invention has the advantages of excellent water resistance, wear resistance and weather resistance, high bonding strength, excellent stability, water resistance, hand feeling and air and moisture permeability, and safe, green and environmentally-friendly use.

The invention relates to an environmentally friendly acrylic resin and a preparation method thereof, especially suitable for processing nail polish, and belongs to the technical field of polymer materials. The raw materials of the acrylic resin include, by weight, a kettle bed material, a mixed dropping material, an initiator 1, an initiator 2 and a diluent; the kettle bed material includes E10P,amyl acetate and n-butyl acetate; the mixed dropping material includes methacrylic acid, methyl methacrylate, styrene, tert-butyl acrylate, hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, butyl methacrylate, butyl acrylate, dicumyl peroxide, 1,1-di(tert-butylperoxy)cyclohexane and the n-butyl acetate; the initiator 1 includes the 1,1-di(tert-butylperoxy)cyclohexane and the n-butyl acetate; the initiator 2 includes the 1,1-di(tert-butylperoxy)cyclohexane and the n-butyl acetate; and the diluent includes the n-butyl acetate. The acrylic resin is high in environmental protection, so that theexistence of substances harmful to human bodies can be completely solved, and the use amount of solvents can be greatly reduced.

The invention provides an anti-scaling disperser for water treatment systems, which comprises methyl methacrylate, diacyl hydroperoxide, acrylic acid-2-hydroxypropyl acrylate-AMPS copolymer, maleic anhydride-acrylic acid copolymer, zinc chloride and water, the disperser is fire resistant, it is a stramineus or colorless transparent liquid soluble with water, it possesses the capability of dispersing hydroxide of Fe and Zn, and calcium phosphate in alkaline water solutions, and because the disperser has sulfonic groups, so it has good anti-scaling and dispersing action to calcium carbonate.

The invention discloses a concrete anticorrosion material and a preparation method thereof. The disclosed concrete anticorrosion material is prepared from the following raw materials: 2-hydroxypropylacrylate, alkyd resin, emulsifying agents, graphene oxide, hydrotalcite-like compounds, calcium hydroxide, complexing agents, carbon nanometer tubes, Si2N3 whiskers, coupling agents, optical stabilizing agents and water. The disclosed preparation method comprises the steps that the formula quantity of the 2-hydroxypropyl acrylate, the alkyd resin and the emulsifying agents are mixed to obtain a mixture A; the formula quantity of hydrotalcite-like compound, calcium hydroxide, Si2N3 whiskers, coupling agents and water are mixed to obtain a mixture B; the mixture A, the mixture B and the formulaquantity of ethylene diamine tetra (methylene phosphonic acid) sodium, mercaptoethylamine, optical stabilizing agents, graphene oxide and carbon nanometer tubes are mixed to obtain the concrete anticorrosion material. The concrete anticorrosion material has good flexibility and anti-ultraviolet ageing performance, and has good bonding force with the concrete surface.

The invention relates to a preparation method of a high-gloss extinction electrophoretic coating comprising acrylic resin and amino resin; the mass ratio of acrylic resin to amino resin is 1 to (0.2-1), and the acrylic resin is prepared from the following raw materials in parts by mass: 3-4 parts of isooctyl methacrylate, 6-9 parts of n-butyl acrylate, 5-8 parts of methyl methacrylate, 1-3 parts of styrene, 2-4 parts of acrylic acid, 0.1-0.5 part of 2-hydroxyethyl methacrylate, 1-2 parts of 2-hydroxyethyl acrylate, 1-2 parts of 2-hydroxypropyl acrylate, 0.5-1 part of polycarbonate, 0.05-0.3 part of dinonylnaphthalene sulfonic acid, 0.5-1 part of a compound initiator, 1-2 parts of a neutralizer, 0.01-0.02 part of a defoamer, 8-15 parts of n-butanol, 8-15 parts of isopropanol and 10-50 partsof deionized water; the number-average molecular weight of the polycarbonate is 5000-10000. The finally prepared electrophoretic coating has good extinction effect (the gloss degree of greater than 70 degrees and less than 80 degrees is detected by a 60-degree gloss meter), and has no stratification phenomenon and good stability after being stored for one year or more; and a paint film is good insmoothness, strong in anti-pollution ability, easy to use and good in adhesive force to a used substrate.

The invention relates to a medium and high viscosity emulsion type acrylic ester pressure-sensitive adhesive used for protective films, a preparation method and application thereof. According to the scheme provided by the invention, a polyacrylic ester emulsion synthesized by adopting a pre-emulsification semi-continuous polymerization process is adopted by using acrylic acid-2-ethyl hexyl acrylate, butyl acrylate, butyl methacrylate, methyl acrylate, vinyl acetate, 2-hydroxypropyl acrylate, 2-hydroxyethyl acrylate, acrylic acid, an inner cross-linking agent, a latent curing agent and a chaintransferring agent. The obtained emulsion type acrylic ester pressure-sensitive adhesive is relatively high in solid content, few in gel, high in stability, high in peel strength and high in originaladhesion, has excellent damp-heat aging resistance, is a single-component adhesive, can be directly used, and can be prepared into various materials of protective films such as pitted fluorocarbon profiles, aluminum-plastic composite panels and plastic profile protective films.

The invention relates to a low thermal conductive aerated concrete block and a preparation method thereof. The low thermal conductive aerated concrete block is prepared by the following raw materials by weight: 18-22 parts of cement, 15-18 parts of quicklime, 10-15 parts of gypsum, 0.25-0.4 part of aluminum powder, 20-30 parts of fly ash, 15-20 parts of floating beads, 20-25 parts of waste brick fragments, 10-15 parts of foamed polypropylene particles, 3-5 parts of sodium persulfate, 6-8 parts of oil residues, 3-5 parts of chlorinated paraffin, 5-8 parts of propylene glycol, 3-5 parts of 2-hydroxypropyl acrylate and 4-6 parts of borax. Foamed particles are used, so that the aerated concrete block has the characteristics of light weight and heat insulation. In summer, an indoor temperature of a room employing the block provided by the invention is 4-5 DEG C lower than a room employing conventional aerated concrete wall.

The invention discloses a temperature-resistant wear-resistant high-quality acrylic board, belonging to the field of high-polymer materials. The temperature-resistant wear-resistant high-quality acrylic board is prepared from polymethyl methacrylate, ethyl cyanoacrylate, 3-trifluoroacetoxypropyltrimethoxy silane, methylchloroformate, ethoxylated trimethylolpropane triacrylate, acrylamide, 2-hydroxypropyl acrylate, dioctyl ester, tert-butyl peroxybenzoate, modified nano alumina, phthalic anhydride, methyltriethoxysilane, potassium pyrophosphate, methyl cellulose and microcrystalline cellulose. According to the characteristics of the polymethyl methacrylate, organic matters and inorganic matters in proper proportions are added to perform modification treatment so as to obviously enhance the comprehensive properties. The impact strength at normal temperature can reach 30 kJ / m<2> or above, the tensile strength can reach 90 MPa or above, the high temperature resistance is 140 DEG C, the surface Rockwell hardness is up to 100 or above, and the wear resistance is favorable, thereby well widening the application range of the acrylic board.

The invention relates to a preparation method of a water-based acrylate pressure-sensitive adhesive, and an application of the adhesive in household appliance protective films. A component A of the pressure-sensitive adhesive is an alkyl (methyl) acrylate polymer, and a component B of the pressure-sensitive adhesive is a polyfunctional aziridine-series crosslinking agent. The component A is obtained through polymerization of butyl acrylate, isooctyl acrylate, methyl methacrylate, butyl methacrylate, 2-hydroxypropyl acrylate, acrylic acid and (methyl) acrylate containing two double bonds, wherein the polymerization is initiated by ammonium sulfate. The pressure-sensitive adhesive provided by the invention has the advantages of good leveling property, less foam, fisheye-free property in coating, and the like. When the adhesive is applied on a needed substrate to prepare a household appliance protective film, the protective film has good high-temperature resistance, good high-humidity resistance and good aging resistance. When the protective film is torn from the surface of a household appliance, no residual adhesive or spot is left.

The invention relates to a laser coating for performing laser for an identification card. The laser coating comprises the following raw components in parts by weight: 2 to 10 parts of hexamethylene diisocyanate tripolymer, 10 to 40 parts of bi-functional isocyanate, 50 to 60 parts of macromolecule dihydric alcohol, 4 to 8 parts of chain extender, 10 to 30 parts of solvent, 0.1 to 0.3 part of catalyst, 3 to 6 parts of neutralizer, 3 to 15 parts of hydroxyethyl methylacrylate, 5 to 30 parts of 2-hydroxypropyl acrylate, and 240 to 280 parts of deionized water. The laser coating provided by the invention is manufactured by performing catalyzing and chain extension through macromolecule polyalcohol and then emulsifying and dispersing; and the laser coating is high in physical property and chemical property, and high in computability regarding to a plurality kinds of ink. Therefore, the laser coating can be directly subjected mould pressing laser, and as a result, the process of individually cementing a laser pattern layer on the identification card is reduced, the manufacture process is simplified, and the production cost is decreased.

The invention belongs to the technical field of radar wave-absorbing materials and particularly relates to a high-temperature resistant radar wave-absorbing material based on a double-layer metamaterial and a preparation method of the high-temperature resistant radar wave-absorbing material. The high-temperature resistant radar wave-absorbing material is prepared from an inner dielectric layer, aninner resistor type high-temperature metamaterial layer, a middle dielectric layer, an outer resistor type high-temperature metamaterial layer and an outer dielectric layer in turn from inside to outside, wherein the inner resistor type high-temperature metamaterial layer is prepared from the following raw materials in parts by weight: polyphenylene sulfide, polytetrafluoroethylene, silicon nitride, ferrosoferric oxide, 2-hydroxypropyl acrylate, copper fiber and a lubricant; the outer resistor type high-temperature metamaterial layer is prepared from the following raw materials in parts by weight: polypyrrole, polytetrafluoroethylene, nano zinc oxide, barium lanthanum hexaboride, dimethylaminoethyl acrylate, calcium sulfate, copper fiber and a lubricant. The high-temperature resistant radar wave-absorbing material based on a double-layer metamaterial provided by the invention has the advantages of simple structure, wide wave-absorbing frequency band, strong wave-absorbing ability, lowdensity and high stability.

The invention relates to high-glossiness acrylic resin for electrophoretic coating and a preparation method thereof. The high-glossiness acrylic resin for electrophoretic coating is prepared from thefollowing raw materials in parts by mass: 3 to 4 parts of isooctyl methacrylate, 6 to 9 parts of n-butyl acrylate, 5 to 8 parts of methyl methacrylate, 1 to 3 parts of styrene, 2 to 4 parts of acrylicacid, 0.1 to 0.5 part of 2-hydroxyethyl methacrylate, 1 to 2 parts of 2-hydroxyethyl acrylate, 1 to 2 parts of 2-hydroxypropyl acrylate, 0.5 to 1 part of polycarbonate, 0.05 to 0.3 part of dinonylnaphthalenesulfonic acid, 0.5 to 1 part of compound initiator, 1 to 2 parts of neutralizing agent, 0.01 to 0.02 part of de-foaming agent, 8 to 15 parts of n-butyl alcohol, 8 to 15 parts of isopropyl alcohol and 10 to 50 parts of de-ionized water. The finally-prepared electrophoretic coating has high glossiness (the glossiness is greater than 75 degrees when being detected by a 60-degree glossiness instrument), can be stored for one year or more, has no layering phenomenon and has good stability; a paint film has good planeness and a strong anti-pollution capability.

The invention relates to the technical field of wood paint and particularly relates to acrylic resin for water-borne wood paint primer, and aims to provide water-borne wood paint primer which has theadvantages of high solid content, low viscosity, high hardness, fast drying and high fullness. The acrylic resin is mainly prepared from the following raw materials in parts by weight: 5-15 parts of 2-hydroxypropyl acrylate, 10-20 parts of methacrylic acid, 20-30 parts of n-butyl methacrylate, 15-25 parts of isobornyl methacrylate, 25-35 parts of cycloaliphaticacrylate, 0.5-2 parts of initiator, 3.75-28 parts of silane coupling agent and 7.5-15 parts of prepolymer.

The invention discloses a weather-resistant aging-resistant battery panel dust-proof paint which is prepared from the following raw materials in parts by weight: 100 parts of methyltrifluoropropyl silicone oil, 15-25 parts of methylchlorophenyl silicone oil, 20-40 parts of methylvinyl silicone oil, 20-80 parts of silver powder, 50-120 parts of copper powder, 5-15 parts of 2-hydroxypropyl acrylate, 1-10 parts of triglycidyl isocyanurate, 1-3 parts of 2-methyl piperazidine, 1-3 parts of vapor-phase silicon dioxide, 3-10 parts of silane coupling agent and 0.05-0.15 part of titanium chelate catalyst. The repeated experiments on the weather-resistant aging-resistant battery panel dust-proof paint prove that the dust-proof paint has favorable weather resistance and aging resistance, has excellent heat conductivity, heat dissipation property, bonding property, sealing property, insulation property,moisture resistance, shock resistance and the like when being coated on the battery panel surface, and has favorable bonding power for metals, plastics and other materials.

The invention relates to the field of coating materials and particularly relates to PU paint. The PU paint is prepared from the following substances in parts by weight: 15-25 parts of castor-oil fatty acid, 15-20 parts of glycerine, 2-6 parts of benzoic acid, 35-45 parts of dilute solvent, 0.8-1.2 parts of catalyst hypophosphorous acid, 15-25 parts of glycidyl tertcarbonate, 10-15 parts of butyl acrylate, 5-10 parts of acrylic acid, 5-15 parts of 2-hydroxypropyl acrylate, 2-8 parts of hydroxyethyl methacrylate, 9-15 parts of crude terephthalic acid, 5-15 parts of phthalic anhydride, 15-20 parts of methyl methacrylate, 5-10 parts of styrene, 0.1-0.3 part of chain transfer agent, 0.05-0.08 part of antioxidant, 3-8 parts of organosilicone auxiliaries, 0.8-1.2 parts of initiator, 5-10 parts of curing agent, 5-8 parts of diluent and 40-50 parts of solvent. According to the PU paint provided by the invention, a paint film is thick in hand feeling, the gloss is soft, the chromaticity is uniform, the impact strength is good, and the leveling property and chemical corrosion resistance are good.