228results about How to "Low VOC content" patented technology

The invention relates to high-solid hydroxyl fluorine-containing acrylic resin and a preparation method thereof. The high-solid hydroxyl fluorine-containing acrylic resin comprises the following components in parts by weight: 10-25 parts of fluorine-containing acrylic ester monomer, 10-30 parts of hydroxyl group-containing acrylic ester monomer, 5-20 parts of methyl acrylic alkyl ester monomer, 5-15 parts of acrylic alkyl ester monomer, 0.3-6 parts of initiator, 0.2-4 parts of chain transfer and 30-50 parts of solvent. According to the hydroxyl fluorine-containing acrylic resin, the solid content reaches up to 75-90 percent, the viscosity is only 900-3,000 mPa.s, the number-average molecular weight is 1,200-6,000, and the molecular weight distribution index is 1.4-2.5; and the resin has the advantages of superior performance, high transparency, no odor of mercaptan, low VOC (Volatile Organic Compound) content, a fluorine carbon group included on a polymer chain and superior corrosion resistance of the resin and can be applied to the fields such as heavy anticorrosive coatings, marine antifouling coatings, aircraft surface coatings, anti-doodling coatings, exterior wall coatings of high weathering resistance and the like.

A water nan-composite thermal-insulating coating for external wall and its production are disclosed. The coating consists of water, polymer emulsion, high-refractive index pigment, filler, nano-tin-antimony oxide slurry, nano-SiO2, wet dispersant, filming accessory, pH adjuster, thickener, de-foaming agent, anti-freezing agent and mildew-proof bactericide. It's cheap and simple, has excellent wash and weather resistances, better thermal-insulating performance, safe storage and no environmental pollution. It can be used for apparatus surface and architecture external wall.

Plasticizer blends comprise a triblend of diethylene glycol dibenzoate, dipropylene glycol dibenzoate, and 1,2-propylene glycol dibenzoate, in specified ratios, useful in combination with a multitude of thermoplastic polymers, thermosetting polymers, and elastomeric polymers and numerous applications, including but not limited to plastisols, adhesives, sealants, caulks, architectural coatings, industrial coatings, OEM coatings, inks, overprint varnishes, polishes, and the like. The advantages rendered by the use of the triblend depend on the type of polymer and application in which it is utilized and include among other advantages higher solvating power and lower processing time, low VOC's, reduced plasticizer freeze point, improved gelation and fusion characteristics, higher tensile strength, superior stain and extraction resistance, and improved rheology over traditional diblends of diethylene glycol dibenzoate and dipropylene glycol dibenzoate.

The invention is environmental-friendly waterborne nanometer fireproof flame-retardant coating and the preparation method, which belong to the fireproof flame-retardant coating manufacturing industry. The flame-retardant coating is obtained through the compounding of two types of flame-retardant agents, waterborne resin, ammonium polyphosphate, melamine, carbon-forming agent, nanometer pigment and filler, micrometer pigment and filler and other auxiliary agent; the flame-retardant coating contains no organic agent and halogen flame retardant, low VOC content, good fireproof property, good physical and chemical properties; the composition of the flame-retardant coating is as follows: the content of waterborne resin is 10-90%; the content of phyllo-silicate nanometer flame retardant which contains phosphor, nitrogen organic intercalation is 1-50%; the content of nanometer magnesium hydroxide flame retardant wrapped by polymer is 1-50%; the content of ammonium polyphosphate is 1-30%; the content of melamine is 1-20%; the content of carbon-forming agent is 1-30%; the content of nanometer pigment and filler is 0.1 to 30%; the content of micrometer filler is 0.1 to 60%; the content of dispersant is 0.1 to 10%; the content of stabilizer is 0.1 to 10%; the content of water is 0.1 to 50%; the content of micrometer pigment is proper; firstly, waterborne resin, nanometer flame retardant, ammonium polyphosphate, melamine, carbon-forming agent, nanometer pigment and fillers, dispersant and stabilizer are put into a planet stirring reactor for stirring and even dispersion; micrometer pigment and filler, water, dispersant and stabilizer are added to the discharged mixture and then put into a high-speed dispersion machine for even dispersion so that the product is obtained.

The invention discloses a novel environment-friendly coating with superhigh marine environment corrosion resistance and a preparation method and application thereof. The environment-friendly coating with superhigh marine corrosion resistance consists of the following components in part by weight: a main agent comprising 22 to 35 parts of low-viscosity solvent-free epoxy resin, 9 to 15 parts of activated thinner, 0.2 to 5 parts of aid, 5 to 8 parts of organic solvent, 0.5 to 15 parts of toner, 10 to 25 parts of first filler, 20 to 45 parts of second filler and 0.5 to 5 parts of thixotropic agent, and a curing agent comprising 60 to 90 parts of amine resin, 10 to 30 parts of activated thinner, 2 to 8 parts of aid and 2 to 10 parts of organic solvent. During use, the main agent and the curing agent are uniformly mixed, and the mixture is applied to the surface of a substrate. A film formed by the coating is high in corrosion resistance and low in content of volatile organic compounds (VOC), does not contain any toxic or harmful substance, can be universally used in a drinking water tank, and also can be used for a ship ballast tank, a ship bottom, a deck and each position of a marine platform.

A nitrogen doped nano-TiO2 modified photocatalytic paint with low content of volatile VOC, and high ultraviolet shielding-absorbing and antibacterial effect is prepared from silicic acrylate emulsion, nitrogen doped nano-TiO2, ordinary nano-TiO2, titanium oxide powder, kaolin, heavy and light calcium carbonate, wallastonite powder, assistant, water, ammonia water, defoaming agent and antimildew agent through proportional mixing, stirring and filtering.

The invention discloses an aqueous multi-functional crylic acid extinction resin and a preparation method thereof and belongs to the field of extinction type coatings. The preparation method of the aqueous multi-functional crylic acid extinction resin comprises the following steps: (1) preparing a crylic acid ester mixture monomer; (2) sufficiently mixing water, an emulsifier and a part of the crylic acid ester mixture monomer, heating to 70-90 DEG C, adding an initiator to react for 0.5-1 hour, dropwise adding the rest crylic acid ester mixture monomer within 3-5 hours, adding the rest initiator in different batches, performing heat preservation for 1-3 hours after the dropwise adding, cooling to 45 DEG C, sequentially adding modified silicon dioxide and an organic thermosetting polymethylurea resin with the particle size of 3.5mu m, uniformly stirring, cooling down and discharging so as to obtain the aqueous multi-functional crylic acid extinction resin. The aqueous multi-functional crylic acid extinction resin prepared by the preparation method disclosed by the invention is high in extinction efficiency, excellent in water resistance, acid resistance and alkali resistance, and good in abrasion resistance property.

The invention relates to a preparation method of polyester acrylate hybrid aqueous dispersion, which belongs to the field of chemical coatings, and the preparation method comprises four steps of synthesizing hydroxyl acrylate resin, preparing an intermediate, preparing polyester acrylate resin and dispersing with deionized water. The preparation method effectively combines the advantages of polyester and acrylic resin, the prepared stable dispersion can be used as the hydroxyl resin component of a dual-component polyurethane coating for preparing a high-performance waterborne dual-component polyurethane coating with hydrophilic polyisocyanate, and a coating film has excellent performance; in addition, the preparation of the dispersion does not use amine as a neutralizer, thereby avoiding the smell caused by the amine and simplifying the process; and only a small amount of cosolvent is adopted in the dispersion, and the content of an organic solvent in the coating is low.

The invention relates to quick-drying hydroxylated acrylic resin water dispersion and a preparation method and use thereof, in particular to quick-drying aqueous automobile repair solid color paint prepared from the hydroxylated acrylic resin dispersion. The invention discloses a method for preparing the hydroxylated acrylic resin dispersion, which comprises: A, preparing a prepolymer of hydroxylated acrylic resin; and B, preparing aqueous prepolymer of the hydroxylated acrylic resin. And the invention also discloses a method for preparing quick-drying aqueous automobile repair solid color paint by using the dispersion. The coating of the quick-drying aqueous automobile repair solid color paint is accomplished at a low temperature or even at normal temperature, so the volatile organic compound (VOC) emission in a coating process of an automobile is reduced and energy conservation and emission reduction are realized. Thus, the quick-drying aqueous automobile repair solid color paint can be promoted and used easily.

The invention discloses a water-base epoxy zinc-rich priming paint and a preparation method thereof. The water-base epoxy zinc-rich priming paint comprises a host and a curing agent according to the weight proportion of 4:1. The host comprises filming auxiliary, a first anti-settling agent, a second anti-settling agent, an amine epoxy curing agent, dispersant, a defoaming agent, filler and zinc powder, and the curing agent comprises epoxy emulsion, a third anti-settling agent, an anti-flash anti-rust agent and deionized water. The preparation method includes steps of preparing the host and the curing agent and proportioning paint by the host and the curing agent according to the weight proportion of 4:1. By taking water as a main dispersion medium, the water-base epoxy zinc-rich priming paint has quite low volatilizable organic content, light smell, low harms on humans, non-combustible property and unique safety in storage, transport and use, safety potential hazards caused by accumulation of a great quantity of harmful solvents are eliminated, harms on physical and psychological health of constructors are reduced to the greatest extent, and further, the requirements of production efficiency of fast paces of a container production line can be met.

The invention relates to a urethane acrylate waterborne UV coating and a preparation method thereof; the urethane acrylate waterborne UV coating comprises the following components according to the parts by weight: 5-25 parts of polyether acrylate, 10-60 parts of urethane acrylate, 2-5 parts of photoinitiator, 0.05-0.5 part of defoaming agent, 0.05-0.5 part of wetting agent and 40-80 parts of deionized water; the preparation method comprises the following steps: weighting each component according to the proportion by weight, then mixing polyether acrylate and urethane acrylate to prepare a mixture, then adding photoinitiator, defoaming agent, wetting agent and waterborne mildewproof agent in the mixture, stirring for 0.5-2h, then slowly dripping deionized water by phase inversion method to disperse the solution and obtaining stable emulsion, wherein, the dripping time of deionized water is 1-3h. The invention is characterized by small investment, simple process, environmental friend and non-toxic, excellent film performance, remarkable economic and social benefits and good market application prospect.

The invention provides a preparation method of a nonionic waterborne epoxy curing agent, which comprises the following steps: (1) heating and dissolving epoxy resin and polyether polyol, evenly mixing, dropwisely adding catalyst at 50-130 DEG C to carry out polymerization reaction, and after the reaction finishes, dissolving the product in the epoxy resin and solvent to prepare a mixed solution; (2) while stirring, dropwisely adding a monoepoxy compound into basic amine, and reacting at 10-100 DEG C; (3) dropwisely adding the mixed solution in the step (1) into the reaction product in the step (2) at 30-120 DEG C, and enabling the reaction at 10-90 DEG C; and after the reaction finishes, diluting by adding water until the solid content reaches 30-80%, thereby obtaining the nonionic waterborne epoxy curing agent. The method has the advantages of simple technique and mild reaction conditions; the adopted cosolvent has the advantages of low toxicity or no toxicity, and low VOC (volatile organic compound) content; and the substance cured by the product has the advantages of favorable compatibility with epoxy resin and high toughness of the paint film.

The invention provides a solvent-free environment-friendly polyurethane automobile leather foamed layer resin which is formed by mixing a component A and a component B. The component A is composed of 50.0-85.0% of polyether dibasic alcohol, 10.0-37.5% of polyether tribasic alcohol, 1.5-5.5% of liquid chain extender, 0.5-2.0% of solid chain extender, 0.1-0.8% of deionized water, 0.8-1.2% of catalyst, 0.5-1.0% of light/heat stabilizer, 0.2-1.0% of foam stabilizer and 0.5-1.0% of solvent-free color paste. The component B is composed of 30.0-50.0% of polyether dibasic alcohol, 10.0-30.0% of polyether tribasic alcohol, 35.0-55.0% of aliphatic isocyanate, 0.05-0.1% of catalyst and 0.1-0.2% of H3PO4. The invention also provides a preparation method and application of the resin. The low-temperature bending strength of the resin can reach 0.1 million times at -25 DEG C.

The invention discloses an indoor water-based ultrathin steel-structure fireproof coating and a preparation method thereof. The indoor water-based ultrathin steel-structure fireproof coating includes the following components: in weight percentage, 17-20% of tap water, 25-30% of water-based acrylic emulsion, 38-45% of expansion flame retardant system, 5-10% of waterproof filler, 0.4-0.6% of wetting dispersant A, 0.8-1,2% of wetting dispersant B, 4-6% of anti-freezing agent, 0.3-0.5% of defoamer, 1-2% of filming auxiliaries, 0.1-0.2% of pH (potential of hydrogen) regulator, 0.4-0.5% of flatting agent, 0.1-0.2% of thickener and 0.2-0.4% of anticorrosion and mildew-proof agent. The coating is free of any harmful substances such as organic solvent and heavy metal and the like and is environment-friendly, non-toxic, safe in storage and excellent in fireproof heat-insulation performance. Comprehensive performances of the coating can meet national standards and completely meet the application requirement of steel-structure fireproof protection.

The invention relates to a water-based acrylic acid modified saturated polyester resin and a preparation method thereof. The water-based acrylic acid modified saturated polyester resin is prepared from the following raw materials in percentage by weight: 5-40% of polyatomic acid, 3-40% of polyhydric alcohol, 0.5-5% of cosolvent, 5-20% of acrylic monomer I, 0.5-5% of acrylic monomer II, 0.01-5% of initiator, 0.5-5% of neutralizer,2-20% of glycidyl tertiary carboxylic ester and 40-50% of distilled water. The water-based acrylic acid modified saturated polyester resin prepared by the invention has the advantages of excellent stability, high solids, low viscosity and low content of VOC (Volatile Organic Compounds) and is mainly applicable to amino-baking paint for waterborne coatings.

The invention relates to a preparation method of an aqueous urethane resin, in particular to an aqueous fluoro modified urethane resin and an aqueous fluoro modified urethane resin paint prepared by an aqueous fluoro modified urethane resin preparation method. The method comprises the following steps: preparing a fluoro modified polyurethane prepolymer, preparing the aqueous fluoro modified urethane resin by the aqueous fluoro modified urethane resin preparation method, and then preparing the aqueous fluoro modified urethane resin paint from the aqueous fluoro modified urethane resin. The aqueous fluoro modified urethane resin paint can be prepared by utilizing the product of the invention, and the prepared water paint is a single-component and normal-temperature curing one which facilitates construction and has favorable adhesive force, smudge resistance, water resistance, alkali resistance, durability and the like. Besides, the water paint needs no curing agent or solvent, thereby fully reflecting the characteristics of safety and environmental friendliness.

The invention discloses an environment-friendly aqueous sealant for a container, comprising the following components in parts by weight: 30-60 parts of polymer emulsion, 0.5-1 part of dispersing agent, 5-10 parts of plasticizer, 2-5 parts of adhesive force accelerating agent, 3-5 parts of thixotropic agent, 35-55 parts of filler and 0.5-3 parts of antifreeze agent. The invention has good physical mechanical property and can completely realize the product performance of the present general container sealant. After solidified, the environment-friendly aqueous sealant has strong adhesive force, good flexibility and excellent sealing performance, can keep long sealing on joints of the container, also has extra low VOC (Volatile Organic Compound) content, and is green and environment-friendly.

The invention discloses a making method of scraping-proof, stone-impacting resistant aqueous nanometer automobile paint in the chemical paint making technical domain, which comprises the following parts: 60-70% paint filming base, 5-15% nanometer powder, 20-25% solvent water and 0.5-1.0% adjuvant, wherein the adjuvant contains thickener, dispersant, defoamer and filming agent; the weight rate of crosslinking agent and nanometer emulsion is 0.9:1-1:1; the crosslinking agent is chemical material of melamine type; the scraping-proof index of paint layer can be 96-99% (displayed by glass keeping rate).

The invention relates to the technical field of waterborne antirust paint, in particular to modified alkyd resin antirust paint and a preparation method thereof. The waterborne normal-temperature self-crosslinking acrylic acid modified alkyd antirust paint has a formula as follows: 33 to 35 mass percent of core-shell acrylic acid modified alkyd emulsion, 18 to 21 mass percent of antirust pigment, 18 to 20 mass percent of filling material, 0.25 to 0.35 mass percent of defoaming agent, leveling agent and dispersing agent, 0.02 to 0.05 mass percent of pH adjusting agent, 0.2 to 0.5 mass percent of waterborne drier and 25 mass percent of deionized water; and the core-shell acrylic acid modified alkyd emulsion is put into a paint preparing jar, the pH value is adjusted by the pH adjusting agent, the core-shell acrylic acid modified alkyd emulsion is added with the antirust pigment, the filling material, the defoaming agent, the leveling agent, the dispersing agent and the deionized water, the mixture is stirred, dispersed, ground to the fineness less than or equal to 50 um and supplemented with the waterborne drier, the mixture is evenly stirred and subjected to pH adjustment to obtain a finished product of the waterborne normal-temperature self-crosslinking acrylic acid modified alkyd antirust paint.

The invention provides rough granite-simulative water-in-water colorful textural paint. The rough granite-simulative water-in-water colorful textural paint comprises an elastic silicone acrylic emulsion, a film-forming assistant, propylene glycol, organic bentonite, deionized water, colorized sand, colorized particles and a thickening agent. The rough granite-simulative water-in-water colorful textural paint is completely hydrated, has very low VOC content, has optionally adjustable color, optionally adjustable particle sizes and interpenetrative natural granite-simulative color, and has high simulation and excellent decorative effects. Through a one-step spray-coating process, rough granite textural effects can be obtained and good texture is realized. The preparation method has fast processes, is free of real stone paint as a modeling skeleton usually used by the conventional water-in-water colorful paint and is not limited by complicated processes.

The invention discloses a water-based cleaning-free flux for a lead-free welding flux and a preparation method thereof. The flux is suitable to be coated on the welding surface of a printed circuit board by a spraying and dipping mode, and mainly comprises deionized water, a composite mixed activator, a surface active agent, a composite mixed cosolvent, a film-forming agent, a corrosion inhibitor, a microorganism growth inhibitor, and the like. According to the water-based cleaning-free flux for the lead-free welding flux, prepared by the invention, the content of a VOC (Volatile Organic Compound) is lower than 5%, so the environmental-friendliness is achieved; and as necessary, the microorganism growth inhibitor is added, so that the water-based cleaning-free flux has certain stability during the storage process. The water-based cleaning-free flux for the lead-free welding flux, prepared by the invention, has the comprehensive advantages that halogen is free, residuals are fewer, cleaning is free, dielectric resistance is high, combustion is difficult, the storage and the transportation are convenient, the environmental-protection effect is achieved, and the like; the combined circuit is simple and rapid, the raw materials are easy to obtain, and the price is lower; and the water-based cleaning-free flux for the lead-free welding flux is suitable for large scale preparation and industrial production.

The invention relates to the field of synthetic production of cosmetics and aims to provide strippable water-based non-irritation nail polish. The strippable water-based non-irritation nail polish comprises deionized water, water-soluble modified polyurethane, chitosan, a wetting agent, a dispersing agent, an antifoaming agent, a rheological agent, water-soluble environment-friendly color paste and other additives. Water is used as a solvent, and no or only a small amount of absolute ethyl alcohol is added to be used as an additive, so that the nail polish has no paint smell of traditional oil-soluble nail polish or alcohol smell of alcohol-soluble nail polish and contains no alkali-associative thickener, and the whole nail polish system is neutral and causes no damage to the skin, nails and clothes.

The invention relates to organosilicon component toughened methyl silicone resin and a preparation method thereof. The resin contains the ingredients in gram by weight: 2-30g of organosilicon component, 20-40g of deionized water or acidic silica sol, 30-80g of methyl trialkoxysilane, 0-30g of tetra-alkoxysilane, 0-15g of phenyl trialkoxysilane, 0-10g of dimethyl dialkoxysilane, 0-10g of silane coupling agent, 0-10g of acidic catalyst, 0.02-0.5g of curing agent, 0-15g of ethanol or isopropanol and 0-0.5g of leveling agent, wherein the organosilicon component is synthesized from terminal-hydrogen silicone oil and vinyl siloxane in the presence of a catalyst. The resin disclosed by the invention has the biggest advantage that a film formed material is endowed with very good flexibility, wet-heat resistance and high-temperature resistance while high hardness for the methylsilicone resin is maintained. The preparation method is simple, is good in environmental friendliness and facilitates large-scale production. The surface protection effect for hard or flexible transparent and opaque plastic parts is good.

The invention discloses a polyaspartate polyurea adhesive and a preparation method thereof. The polyaspartate polyurea adhesive comprises a component A and a component B spaced from each other before being used, wherein the component A and the component B are mixed at a weight ratio of 4 to (1-1.05) when being used; the component A comprises the following components in parts by weight: 4.0-5.0 parts of polyaspartate polyurea, 4.0-4.50 parts of fillers, 0.005-0.01 parts of a defoamer and 0.005-0.01 parts of a leveling agent; the component B is hexamethylene diisocyanate trimer. According to the polyaspartate polyurea adhesive, the component A and the component B are mixed, so that the bonding strength in a bonding process is high and especially the bonding strength between the adhesive and a cement matrix is high; moreover, the adhesive has excellent performances of chemical corrosion resistance, water resistance, weather resistance, temperature resistance, low VOC (volatile organic compounds), environmental protection and the like.

The invention provides a nano aqueous interior wall heat insulation paint and a preparation method thereof, which belong to the technical field of production of aqueous paint. The nano aqueous interior wall heat insulation paint comprises the following components in percentage by weight: 20 to 35 percent of emulsion, 20 to 30 percent of nano calcium carbonate, 8 to 16 percent of nano oxide composition, 0.2 to 2 percent of thickening agent, 0.5 to 2 percent of wetting and dispersing agent, 0.1 to 0.5 percent of antifoaming agent, 0.5 to 2 percent of anti-freezing agent and the balance of water. The preparation process comprises the following steps of: uniformly stirring the water, the dispersing agent, glycol and half the antifoaming agent at a low speed, sequentially adding the nano calcium carbonate and the nano oxide composition with stirring; uniformly stirring the nano calcium carbonate and the nano oxide composition and uniformly dispersing the mixture by shearing the mixture on a multifunctional disperser at a high speed; slowly adding the emulsion dropwise at a low stirring speed; subsequently adding the remaining antifoaming agent and the thickening agent; and uniformly stirring and mixing the mixture at the low speed. The heat insulation paint of the invention comprises the water serving as a solvent, does not contain an organic solvent, and has the advantages of low VOC content, simple preparation process and wide application.

The present invention is directed to compositions, preferably cosmetic compositions comprising a) at least one quaternary ammonium compound and b) at least one organic carbonate and cosmetic and hair-treatment formulations comprising the compositions according to the invention.

The invention provides a low-VOC high-performance PC/ABS alloy material and its preparation and an application thereof. Raw material formula of the alloy material contains: by weight, 30-80 parts of polycarbonate, 5-50 parts of a styrene-butadiene-acrylonitrile copolymer, 5-30 parts of a styrene-acrylonitrile copolymer, 1-10 parts of a compatilizer, 0.1-1.0 part of an odour absorbent and 0.1-1 part of a processing agent. The alloy material provided by the invention has low odour grade, low content of an organic volatile matter and excellent mechanical property, and can be used in preparation of automotive upholstery.

The invention relates to acrylics, in particular to aqueous acrylic acid aerosol paint. The aqueous acrylic acid aerosol paint includes the chemical components (counted in weight percentage) as follows: 15 to 20wt percent of etherified-modified aqueous acrylic acid resin, 2 to 5wt percent of coloring dye, 0.1 to 1.0wt percent of flatting thickening agent, 0.1 to 0.5wt percent of foam killer, 2 to 15wt percent of latent solvents, 20 to 35wt percent of water, 40 to 45wt percent of dimethyl ether as well as 0.5 to 1.0wt percent of addition agent. The invention also provides a preparation method of the aqueous acrylic acid aerosol paint, solves the compatibility problem between a propellant and the material of an aqueous aerosol, eliminates the loss of an atmospheric ozone layer, greatly reduces the content of VOC, lightens the pollution to the environment, also eliminates the problem of the flame length for product burning, leads the whole production process to be more environment-friendly and safer as well as is beneficial to the body health of a worker.

The invention discloses a general modified epoxy antirust paint with high performances and high solids and a preparation method thereof. The paint comprises a component A and a component B, wherein the component A comprises 10-20 parts of an E44 epoxy resin, 10-20 parts of an NPPN-631 epoxy resin, 5-15 parts of a terpene resin, 4-18 parts of a cumarone resin, 0.1-1.0 parts of a BYK antifoaming agent, 0.1-1.0 part of an HX leveling agent, 0.1-1.5 parts of a rheological assistant, 5-20 parts of active silica, 10-20 parts of a mixed solvent and 10-30 parts of a pigment-filler; and the component B comprises 10-40 parts of cardanol modified amine and 0.5-3 parts of a modified silane coupling agent. The antirust paint of the invention has the advantages of compact coating, low viscosity, good compatibility and fast curing of a curing agent, high tough strength and strong adhesion of the coating, coating number reduction during the thick slurry curing, construction efficiency improvement, construction cost reduction, and anticorrosion life prolongation.

The invention discloses high-solid low-viscosity hydroxy acrylic resin as well as a preparation method and application thereof. During preparation, a first part of solvent and mono-glycidyl ether are added into a reaction kettle, stirred and heated to 140-180 DEG C; a first part of initiator and a chain transfer agent are added into an acrylic monomer mixture, the obtained mixture is dropwise added into a reaction kettle within 3-6 h, and the temperature is kept for 0.5-1h after dropwise addition; the residual initiator and the residual solvent are mixed uniformly and added into the reaction kettle within 20-40 min, the temperature is kept for 1-2 h after the addition is completed, a hydroxyl oligomer is added, stirring is performed for 30-60 min, the temperature is lowered for material discharge, and the high-solid low-viscosity hydroxy acrylic resin is obtained. The resin solid accounts for 70% or higher, the viscosity is as low as 300mPa*s. The technology for preparing the hydroxy acrylic resin is simple, the cost is low, and a bi-component polyurethane coating film has excellent water resistance, acid and alkali resistance and mechanical properties.