CN111117426A - High-corrosion-resistance flash-rust-resistant waterborne epoxy primer and preparation method thereof - Google Patents
High-corrosion-resistance flash-rust-resistant waterborne epoxy primer and preparation method thereof Download PDFInfo
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- CN111117426A CN111117426A CN201911391892.1A CN201911391892A CN111117426A CN 111117426 A CN111117426 A CN 111117426A CN 201911391892 A CN201911391892 A CN 201911391892A CN 111117426 A CN111117426 A CN 111117426A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/44—Amides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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Abstract
The invention discloses a high-corrosion-resistance flash rust-proof waterborne epoxy primer and a preparation method thereof. The water-based epoxy primer comprises a resin part and a curing agent part, and the weight ratio of the resin part to the curing agent part is 3: 1-5: 1. The resin part comprises the following components in parts by weight: 30-40 parts of epoxy emulsion, 1-3 parts of cosolvent, 3-5 parts of water-based hyperbranched resin, 0.2-1 part of base material wetting agent, 0.2-1 part of flatting agent, 1-2 parts of anti-settling agent, 0.1-0.5 part of dispersing agent, 45-55 parts of pigment and filler, 0.5-1.0 part of rheological additive, 0.6-1 part of anti-flash rust agent, 0.2-1 part of pH regulator and 2-4 parts of deionized water; the curing agent part comprises the following components in parts by weight: 30-40 parts of polyamide curing agent, 5-10 parts of modified polyamide curing agent and 50-55 parts of deionized water. The paint film obtained after the primer is coated is compact, and the paint film has good water resistance, salt mist resistance and corrosion resistance; and the material has good flexibility, does not crack or fall off, and has excellent mechanical properties such as impact resistance and the like.
Description
Technical Field
The invention relates to an anticorrosive paint, in particular to a high-corrosion-resistance flash-rust-resistant waterborne epoxy primer and a preparation method thereof.
Background
The anticorrosive paint is mainly applied to the fields of emerging ocean engineering, modern transportation, energy industry, large-scale industrial enterprises, municipal facilities and the like. The traditional solvent type epoxy coating has excellent corrosion resistance, cohesiveness and adhesive force, is widely applied to corrosion prevention of steel structures, aluminum alloy structures and the like, and is one of the coating varieties with the best corrosion resistance recognized at home and abroad. However, the emission of organic volatile matters of the traditional solvent type epoxy coating is high, the traditional solvent type anticorrosive coating contains more than 50% of organic solvents, and the solvents are volatilized into the air in the production and construction processes, so that resources are wasted, the environment is polluted, the health of human bodies is damaged, and fire hazards exist. . With the development of economy and the improvement of environmental protection understanding, the application of water-based paint products is more and more popular and wide.
The primer is the first layer of the paint system and is used for improving the adhesive force of the finish paint, increasing the fullness of the finish paint, providing alkali resistance, providing an anti-corrosion function and the like, and simultaneously ensuring the uniform absorption of the finish paint so that the paint system can exert the best effect.
For example, chinese patent document CN 108976983 a (application No. 201810646070.2) discloses a water-based epoxy resin primer, which comprises the following raw materials in parts by weight: 30 to 60 parts of water-based epoxy resin emulsion, 10 to 40 parts of aluminum tripolyphosphate, 0.5 to 2.0 parts of wetting dispersant, 8 to 12 parts of iron oxide red, 6 to 11 parts of filler, 0.1 to 0.5 part of anti-flash rust agent, 0.1 to 0.5 part of defoaming agent, 2 to 7 parts of nontoxic cosolvent, 0.1 to 0.5 part of base material wetting agent, 1 to 5 parts of water, 25 to 35 parts of curing agent, 1 to 5 parts of silane coupling agent and 2 to 8 parts of nano-scale silicon dioxide. The water-based epoxy resin primer prepared by the method can effectively protect the health of constructors and producers, avoid fire hazard and ensure safe production and use.
Chinese patent document CN 103436136A (application No. 201310312057.0) discloses a room temperature curable water-based anticorrosive primer for coating the outer surface of an engineering crane, which comprises the following components in parts by weight: 35-45% of water-based resin, 5-8% of curing agent, 1-3% of dispersing agent, 5-12% of antirust pigment, 20-35% of pigment filler, 1-2% of anti-settling agent, 0.5-1% of wetting agent, 0.5-1% of thixotropic agent, 0.5-1% of defoaming agent, 0.1-0.8% of anti-flash agent, 0.1-0.8% of mildew preventive, 1-3% of film-forming assistant and 10-20% of deionized water. The paint film of the water-based anticorrosive primer can be cured at room temperature, is energy-saving and environment-friendly, and meets the requirements of enterprises on safe production; the paint has high solid content and low viscosity, is convenient to construct, the coating has good corrosion resistance and water resistance, and the comprehensive performance of the paint layer reaches the performance index of the same type of oily products.
Disclosure of Invention
The invention aims to solve the technical problem of providing the high-corrosion-resistance flash rust-resistant water-based epoxy primer and the preparation method thereof.
The technical scheme for realizing the first purpose of the invention is that the high-corrosion-resistance flash rust-proof water-based epoxy primer comprises a resin part and a curing agent part; the weight ratio of the resin part to the curing agent part is 3: 1-5: 1.
The resin part comprises the following components in parts by weight: 30-40 parts of epoxy emulsion, 1-3 parts of cosolvent, 3-5 parts of water-based hyperbranched resin, 0.2-1 part of base material wetting agent, 0.2-1 part of flatting agent, 1-2 parts of anti-settling agent, 0.1-0.5 part of dispersing agent, 45-55 parts of pigment and filler, 0.5-1.0 part of rheological additive, 0.6-1 part of anti-flash rust agent, 0.2-1 part of pH regulator and 2-4 parts of deionized water.
The curing agent part comprises the following components in parts by weight: 30-40 parts of polyamide curing agent, 5-10 parts of modified polyamide curing agent and 50-55 parts of deionized water.
The water-based epoxy emulsion is one or a mixture of more than one of glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and alicyclic epoxy resin.
The base material wetting agent is one or a mixture of more than one of polyether modified organosilicon, ethylene oxide adduct or fluorine wetting agent.
The leveling agent is one or a mixture of more than one of organic silicon, fluorocarbon modified organic silicon and acrylic leveling agent; the anti-settling agent is one or a mixture of more than one of fumed silica, organic bentonite and anti-settling wax slurry.
The dispersant is one or more of modified polyacrylate high polymer, modified polyacrylate and vinyl copolymer, alkanolamine salt of high molecular weight carboxylic acid and fatty acid modified polyester.
The pigment and filler is one or a mixture of more than one of rutile titanium dioxide, anatase titanium dioxide, wet mica powder, ultrafine precipitated barium sulfate, ultrafine talcum powder, high-pigment carbon black and iron oxide yellow.
The cosolvent is one or a mixture of more than one of ethylene glycol butyl ether, deionized water, isopropanol and propylene glycol methyl ether.
The technical scheme for realizing the second purpose of the invention is a preparation method of the high corrosion-resistant flash rust-resistant waterborne epoxy primer, which comprises the following steps:
① adding the cosolvent into a clean container, adding the substrate wetting agent, the anti-settling agent and the dispersant while stirring, and stirring uniformly for later use.
② adding pigment and filler slowly while stirring, and pre-dispersing uniformly after adding.
③ grinding the pre-dispersed material ② by a grinder, adding deionized water, and stirring.
④, slowly adding the aqueous epoxy emulsion and the aqueous hyperbranched resin into the material obtained in the step ③ under stirring, and fully and uniformly stirring.
⑤ adding leveling agent and anti-flash rust agent, and stirring.
⑥ adding rheological assistant.
⑦ adding pH regulator to adjust pH to 7.5-8.2 to obtain resin fraction.
⑧ mixing polyamide curing agent, modified polyamide curing agent and deionized water, and stirring to obtain the curing agent part.
The invention has the positive effects that:
(1) the main resin of the high-corrosion-resistance flash rust-resistant water-based epoxy primer adopts high-performance water-based epoxy emulsion, the water-based epoxy emulsion contains a plurality of hydroxyl groups and ether bonds, can attract substrates, and has low volume shrinkage after curing, excellent adhesive force on various polar substrates such as metal and the like and strong universality.
(2) The curing agent of the waterborne epoxy primer comprises a polyamide curing agent with extremely high drying property and a modified polyamide curing agent with standard drying speed but good flexibility, wherein the polyamide curing agent and the modified polyamide curing agent jointly carry out crosslinking modification on an epoxy emulsion; meanwhile, the waterborne epoxy primer is introduced with waterborne hyperbranched resin, the waterborne hyperbranched resin has dendritic high-hydroxyl functionality resin, and the crosslinking density is further improved after the waterborne hyperbranched resin is combined with a polyamide curing agent, so that a paint film obtained after the primer is coated is compact, and the paint film has good water resistance, salt mist resistance and corrosion resistance; and the material has good flexibility, does not crack or fall off, and has excellent mechanical properties such as impact resistance and the like.
(3) The water-based epoxy primer disclosed by the invention is quickly cured at room temperature, and flash rust is avoided.
(4) The high-corrosion-resistance flash rust-proof water-based epoxy primer has outstanding moisture resistance due to hydrophilicity and low surface tension, can be directly coated and constructed on a wet surface and in a wet environment, has high pigment and filler content and is easy to fill, so that the high-corrosion-resistance flash rust-proof water-based epoxy primer has excellent coating adhesion on parts of rusty iron parts with oil.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below in connection with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
(example 1)
The high corrosion-resistant and flash rust-resistant waterborne epoxy primer of the embodiment comprises a resin part and a curing agent part, wherein the weight ratio of the resin part to the curing agent part is 4: 1.
The resin part comprises the following components in parts by weight: 38 parts of water-based epoxy emulsion, 4 parts of water-based hyperbranched resin, 1.2 parts of cosolvent, 0.5 part of base material wetting agent, 0.4 part of flatting agent, 4 parts of anti-settling agent, 0.5 part of dispersing agent, 48 parts of pigment and filler, 0.5 part of rheological additive, 0.6 part of flash rust inhibitor, 0.3 part of pH regulator and 2 parts of deionized water.
The water-based epoxy emulsion is one or a mixture of more than one of glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and alicyclic epoxy resin. The water-based epoxy emulsion in this example WAs BECKPOX EP 387w/52WA from Allnex, a brand new resin (Shanghai).
The aqueous hyperbranched resin in the embodiment is YG-HBP075 by Beijing Sun Vigord environmental protection science and technology Limited.
The cosolvent is one or a mixture of more than one of ethylene glycol butyl ether, deionized water, isopropanol and propylene glycol methyl ether. The cosolvent in this example is deionized water and butyl cellosolve at a ratio of 5: 1.
The base material wetting agent is one or a mixture of more than one of polyether modified organosilicon, ethylene oxide adduct or fluorine wetting agent. The substrate wetting agent in this example is TEGO Twin 4100, a winning industry group.
The leveling agent is one or a mixture of more than one of organic silicon, fluorocarbon modified organic silicon and acrylic leveling agent. The leveling agent in this example is BYK-190 of BYK, Pyk, Germany.
The anti-settling agent is one or a mixture of more than one of fumed silica, organic bentonite and anti-settling wax slurry. The anti-settling agent in this example is a mixture of Bentonie LT, an organic bentonite in the Mesothia chemical ELEMENTS, and AEROSIL-200, a fumed silica in the EVONIK, a winning industry group, at a ratio of 3: 1.
The dispersant is one or more of modified polyacrylate high polymer, modified polyacrylate and vinyl copolymer, alkanolamine salt of high molecular weight carboxylic acid and fatty acid modified polyester. The dispersant in this example was Haimines' FA 179.
The pigment and filler is one or a mixture of more than one of rutile titanium dioxide, anatase titanium dioxide, wet mica powder, ultrafine precipitated barium sulfate, ultrafine talcum powder, high-pigment carbon black and iron oxide yellow. The pigment and filler in the embodiment is a mixture of rutile titanium dioxide, 1250-mesh superfine calcined kaolin, grignard wet 1250-mesh sericite powder GA-4, 1250-mesh precipitated barium sulfate, 1500-mesh superfine talc powder, high pigment carbon black, Guangxi new crystal technology aluminum tripolyphosphate APW-II and ion exchange calcium SHIELDEX CS311 of Grace USA, and the mixing ratio is 15: 8: 3: 10: 2.5: 0.05: 9: 5.
The rheological aid used in this example was GARMITE1210 bib rheological aid from bib chemical germany.
The anti-flash rust agent used in this example was FA179 under the names of temush ELEMENTS.
The pH adjuster used in this example was AMP-95 from Dow chemical.
The curing agent part comprises the following components in parts by weight: 40 parts of polyamide curing agent, 55 parts of deionized water and 5 parts of modified polyamide curing agent.
The polyamide curing agent used in this example WAs BECKOCURE EH2189w/50WA available from Allnex of Hippocampus resin Co., Ltd.A.As the modified polyamide curing agent, Aradur3986 available from Huntsman group HUNTSMAN WAs used.
The preparation method of the high corrosion-resistant flash rust-resistant waterborne epoxy primer of the embodiment comprises the following steps:
① adding cosolvent 1.2 parts into clean container, adding base material wetting agent 0.5 parts, anti-settling agent 4 parts, and dispersant 0.5 parts while stirring, and stirring under low shear force (500 rpm) to obtain the final product.
② adding 50 parts of pigment and filler slowly under low shearing force, after adding, adjusting the stirring speed to 2000 r/m, pre-dispersing for 30 minutes under high shearing force.
③ grinding the pre-dispersed material ② to fineness less than 30 μm, adding 2 parts deionized water, and stirring.
④, slowly adding 38 parts of waterborne epoxy emulsion and 4 parts of waterborne hyperbranched resin into the material obtained in the step ③ under stirring, and fully and uniformly stirring.
⑤ and 0.4 part of leveling agent and 0.6 part of flash rust inhibitor are added and fully and uniformly stirred.
⑥ adding rheological assistant 0.5 part, adjusting system viscosity to proper range.
⑦ A resin portion was prepared by adding 0.3 part of a pH adjusting agent to adjust the pH to 8.05.
⑧ mixing 40 parts of polyamide curing agent, 56 parts of modified polyamide curing agent and 55 parts of deionized water, and stirring uniformly to obtain the curing agent part.
Before use, the resin part and the curing agent part are uniformly mixed according to the ratio of 4: 1 and then coated.
(example 2)
The high corrosion and flash rust resistant waterborne epoxy primer of this example is otherwise the same as example 1, except that:
the resin part comprises the following components in parts by weight: 37 parts of water-based epoxy emulsion, 5 parts of water-based hyperbranched resin, 1.0 part of cosolvent, 0.5 part of base material wetting agent, 0.4 part of flatting agent, 4 parts of anti-settling agent, 0.5 part of dispersing agent, 48 parts of pigment and filler, 0.5 part of rheological additive, 0.8 part of flash rust inhibitor, 0.3 part of pH regulator and 2 parts of deionized water.
The weight ratio of the resin part to the curing agent part is 3.5: 1.
(example 3)
The high corrosion and flash rust resistant waterborne epoxy primer of this example is otherwise the same as example 1, except that:
the resin part comprises the following components in parts by weight: 35 parts of water-based epoxy emulsion, 5 parts of water-based hyperbranched resin, 1.5 parts of cosolvent, 0.5 part of base material wetting agent, 0.4 part of flatting agent, 4 parts of anti-settling agent, 0.5 part of dispersing agent, 48 parts of pigment and filler, 0.5 part of rheological additive, 1 part of flash rust inhibitor, 0.3 part of pH regulator and 3.3 parts of deionized water.
The weight ratio of the resin part to the curing agent part is 5: 1.
(detection example)
The resin part and the curing agent part of the waterborne epoxy primers of examples 1 to 3 were mixed, and after adding a proper amount of water, the mixture was sprayed on the corresponding substrate, and forced dried at a low temperature (80 ℃/30 min), and the measured technical indexes were as shown in table 1.
TABLE 1
As can be seen from Table 1, the paint film obtained after the primer is coated is compact, and the paint film has good water resistance, acid and alkali resistance, salt spray resistance and corrosion resistance; and the material has good flexibility, does not crack or fall off, and has excellent mechanical properties such as impact resistance and the like.
Claims (8)
1. A high corrosion-resistant flash rust resistant waterborne epoxy primer comprises a resin part and a curing agent part; characterized in that the weight ratio of the resin part to the curing agent part is 3: 1-5: 1;
the resin part comprises the following components in parts by weight: 30-40 parts of epoxy emulsion, 1-3 parts of cosolvent, 3-5 parts of water-based hyperbranched resin, 0.2-1 part of base material wetting agent, 0.2-1 part of flatting agent, 1-2 parts of anti-settling agent, 0.1-0.5 part of dispersing agent, 45-55 parts of pigment and filler, 0.5-1.0 part of rheological additive, 0.6-1 part of anti-flash rust agent, 0.2-1 part of pH regulator and 2-4 parts of deionized water;
the curing agent part comprises the following components in parts by weight: 30-40 parts of polyamide curing agent, 5-10 parts of modified polyamide curing agent and 50-55 parts of deionized water.
2. The high corrosion resistant flash rust resistant waterborne epoxy primer according to claim 1, characterized in that: the water-based epoxy emulsion is one or a mixture of more than one of glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and alicyclic epoxy resin.
3. The high corrosion resistant flash rust resistant waterborne epoxy primer according to claim 1, characterized in that: the base material wetting agent is one or a mixture of more than one of polyether modified organosilicon, ethylene oxide adduct or fluorine wetting agent.
4. The high corrosion resistant flash rust resistant waterborne epoxy primer according to claim 1, characterized in that: the leveling agent is one or a mixture of more than one of organic silicon, fluorocarbon modified organic silicon and acrylic leveling agent; the anti-settling agent is one or a mixture of more than one of fumed silica, organic bentonite and anti-settling wax slurry.
5. The high corrosion resistant flash rust resistant waterborne epoxy primer according to claim 1, characterized in that: the dispersant is one or more of modified polyacrylate high polymer, modified polyacrylate and vinyl copolymer, alkanolamine salt of high molecular weight carboxylic acid and fatty acid modified polyester.
6. The high corrosion resistant flash rust resistant waterborne epoxy primer according to claim 1, characterized in that: the pigment and filler is one or more of rutile titanium dioxide, anatase titanium dioxide, wet mica powder, superfine precipitated barium sulfate, superfine talc powder, high pigment carbon black and iron oxide yellow.
7. The high corrosion resistance flash rust prevention water-based epoxy primer according to claim 1, characterized in that: the cosolvent is one or a mixture of more than one of ethylene glycol butyl ether, deionized water, isopropanol and propylene glycol methyl ether.
8. The method for preparing the high corrosion-resistant flash rust resistant water-borne epoxy primer according to claim 1, characterized by comprising the steps of:
① adding cosolvent into a clean container, adding substrate wetting agent, anti-settling agent and dispersant while stirring, and stirring uniformly for use;
② adding pigment and filler slowly while stirring, and pre-dispersing uniformly after adding;
③ grinding the pre-dispersed material ② in a grinder, adding deionized water, and stirring;
④, slowly adding the aqueous epoxy emulsion and the aqueous hyperbranched resin into the material obtained in the step ③ under stirring, and fully and uniformly stirring;
⑤ adding leveling agent and anti-flash rust agent, stirring thoroughly;
⑥ adding rheological assistant;
⑦ adding pH regulator, and regulating pH to 7.5-8.2 to obtain resin part;
⑧ mixing polyamide curing agent, modified polyamide curing agent and deionized water, and stirring to obtain the curing agent part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811652206 | 2018-12-31 | ||
| CN2018116522067 | 2018-12-31 |
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| CN113015771A (en) * | 2020-05-25 | 2021-06-22 | 厦门双瑞船舶涂料有限公司 | Water-based epoxy anticorrosive paint and preparation method thereof |
| CN113416463A (en) * | 2021-04-29 | 2021-09-21 | 武汉双虎涂料有限公司 | Water-based epoxy paint and preparation method and application thereof |
| CN113698577A (en) * | 2021-08-31 | 2021-11-26 | 深圳砺剑博纳科技有限公司 | Water-based amine curing agent and water-based two-component epoxy coating containing same |
| CN114032004A (en) * | 2021-11-03 | 2022-02-11 | 重庆三峡油漆股份有限公司 | Water-based epoxy coating and preparation method thereof |
| CN114045086A (en) * | 2021-12-16 | 2022-02-15 | 安徽省金盾涂料有限责任公司 | Environment-friendly ship inner cabin floor paint |
| CN114133839A (en) * | 2022-01-05 | 2022-03-04 | 湘江涂料科技有限公司 | Universal epoxy primer for finish machined surface and preparation method thereof |
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| CN113015771A (en) * | 2020-05-25 | 2021-06-22 | 厦门双瑞船舶涂料有限公司 | Water-based epoxy anticorrosive paint and preparation method thereof |
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| CN114045086A (en) * | 2021-12-16 | 2022-02-15 | 安徽省金盾涂料有限责任公司 | Environment-friendly ship inner cabin floor paint |
| CN114133839A (en) * | 2022-01-05 | 2022-03-04 | 湘江涂料科技有限公司 | Universal epoxy primer for finish machined surface and preparation method thereof |
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