CN115651481A - Water-based two-component epoxy thick-paste paint for anticorrosive coating and preparation method thereof - Google Patents
Water-based two-component epoxy thick-paste paint for anticorrosive coating and preparation method thereof Download PDFInfo
- Publication number
- CN115651481A CN115651481A CN202211369873.0A CN202211369873A CN115651481A CN 115651481 A CN115651481 A CN 115651481A CN 202211369873 A CN202211369873 A CN 202211369873A CN 115651481 A CN115651481 A CN 115651481A
- Authority
- CN
- China
- Prior art keywords
- parts
- component
- epoxy
- water
- paint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004593 Epoxy Substances 0.000 title claims abstract description 121
- 239000003973 paint Substances 0.000 title claims abstract description 109
- 238000000576 coating method Methods 0.000 title claims abstract description 74
- 239000011248 coating agent Substances 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 239000000839 emulsion Substances 0.000 claims abstract description 27
- 239000004964 aerogel Substances 0.000 claims abstract description 25
- 239000000440 bentonite Substances 0.000 claims abstract description 23
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 23
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000391 magnesium silicate Substances 0.000 claims abstract description 23
- 229910052919 magnesium silicate Inorganic materials 0.000 claims abstract description 23
- 235000019792 magnesium silicate Nutrition 0.000 claims abstract description 23
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 22
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 22
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 22
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 239000006229 carbon black Substances 0.000 claims abstract description 20
- 239000010433 feldspar Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 20
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 20
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims abstract description 20
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 19
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical class O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000654 additive Substances 0.000 claims description 19
- 230000000996 additive effect Effects 0.000 claims description 15
- 239000006254 rheological additive Substances 0.000 claims description 15
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 239000002270 dispersing agent Substances 0.000 claims description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 8
- 239000002518 antifoaming agent Substances 0.000 claims description 7
- 239000013521 mastic Substances 0.000 claims description 7
- 238000011089 mechanical engineering Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims 5
- 239000011440 grout Substances 0.000 claims 3
- 239000002671 adjuvant Substances 0.000 claims 2
- ZADYMNAVLSWLEQ-UHFFFAOYSA-N magnesium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[Mg+2].[Si+4] ZADYMNAVLSWLEQ-UHFFFAOYSA-N 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 15
- 150000003839 salts Chemical class 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 238000005536 corrosion prevention Methods 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract description 6
- 238000007665 sagging Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 8
- 239000007787 solid Substances 0.000 description 6
- 230000009974 thixotropic effect Effects 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 239000012855 volatile organic compound Substances 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 150000003672 ureas Chemical class 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000005002 finish coating Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention provides a water-based two-component epoxy thick-paste paint for an anticorrosive coating and a preparation method thereof, wherein the epoxy thick-paste paint comprises a component A and a component B; wherein the component A is prepared from the following raw materials: titanium dioxide, carbon black, talcum powder, feldspar powder, aerogel, aluminum tripolyphosphate, hydroxyethyl cellulose, organic bentonite, hydrated magnesium silicate, a modified urea water-based paint liquid rheological aid, a water-based epoxy emulsion, an epoxy silane coupling agent, an aid and water; the component B comprises an epoxy curing agent. The invention can solve the technical problems of poor paint film performance and corrosion prevention effect caused by slow paint film thickness rise, easy sagging during spraying, more micro-pores in the paint film and on the paint film surface and higher porosity, and achieves the technical effects of high dry film thickness, good paint film adhesive force, high compactness, excellent chemical resistance and salt spray resistance.
Description
Technical Field
The invention belongs to the technical field of anticorrosive coatings, and particularly relates to a water-based two-component epoxy thick-paste paint for an anticorrosive coating and a preparation method thereof.
Background
At the present stage, global environmental protection is more and more popular, pollution is reduced, VOC emission is reduced, and low-pollution coatings using low solvents are the mainstream trend, wherein green and environmental-friendly water-based coatings are undoubtedly the most popular and have the most development potential.
With the development of society, the anticorrosive requirements of vehicles, ships, large-scale machinery, engineering equipment, buildings and the like are higher and higher, and vehicles, ships, large-scale steel equipment, engineering pipelines, buildings and the like are subjected to the change of extreme high temperature and low temperature, the severe change of sunlight intensity, the pollutant corrosion of industrial cities, the corrosion of salt-containing high-humidity marine environments and the like all year round, so that higher requirements are put on the coating, and the coating is required to have excellent antirust and anticorrosive performance and also have good constructability, adaptability and durability.
The epoxy antirust paint has good chemical resistance and corrosion resistance, but the traditional epoxy antirust paint has higher requirements on the surface treatment of a steel structure, and the paint needs to be repaired and re-coated once every few years, thereby causing great investment in manpower and material resources. The water-based high-solid thick film coating has the characteristics of extremely strong corrosion resistance and shielding performance, and meanwhile, the water-based high-solid thick film coating has low VOC (volatile organic compounds) emission and strong constructability, the thickness of a dry film can reach 400-500 mu m, and a wet film does not generate sagging. The inside and the surface of the composite anticorrosive coating often have more microscopic pores, and the porosity is higher, so that the anticorrosive effect and the performance of the paint layer are seriously influenced.
Therefore, an anticorrosive coating with good paint film adhesion, high compactness and strong corrosion resistance effect is needed, and the anticorrosive coating can be effectively applied to the fields of vehicles, ships, mechanical engineering, wind power generation equipment, buildings and the like.
Disclosure of Invention
Technical problem to be solved
The invention provides a water-based two-component epoxy thick-paste paint for an anticorrosive coating and a preparation method thereof, aiming at solving the technical problems of improving the adhesive force, compactness and corrosion resistance effect of a paint film, simplifying the process and improving the process efficiency and the product excellent rate.
(II) technical scheme
In order to solve the technical problems, the invention provides a water-based two-component epoxy thick-paste paint for an anticorrosive coating, which comprises a component A and a component B; the component A is prepared from the following raw materials: titanium dioxide, carbon black, talcum powder, feldspar powder, aerogel, aluminum tripolyphosphate, hydroxyethyl cellulose, organic bentonite, hydrated magnesium silicate, a modified urea water-based paint liquid rheological additive, a water-based epoxy emulsion, an epoxy silane coupling agent, an additive and water; the component B comprises an epoxy curing agent.
Further, the component A is prepared from the following raw materials in parts by mass: 3-10 parts of titanium dioxide, 0.05-0.2 part of carbon black, 25-30 parts of talcum powder, 25-30 parts of feldspar powder, 0.4-0.6 part of aerogel, 6-8 parts of aluminum tripolyphosphate, 0.1-0.3 part of hydroxyethyl cellulose, 0.3-0.5 part of organic bentonite, 0.4-0.6 part of hydrated magnesium silicate, 0.3-1.5 parts of modified urea water-based paint liquid rheological additive, 28-30 parts of water-based epoxy emulsion, 0.5-1 part of epoxy silane coupling agent, 2.5-3 parts of additive and 10-12 parts of water.
Further, the component A is prepared from the following raw materials in parts by mass: 3 parts of titanium dioxide, 0.05 part of carbon black, 25 parts of talcum powder, 25 parts of feldspar powder, 0.4-0.6 part of aerogel, 6-7 parts of aluminum tripolyphosphate, 0.2-0.3 part of hydroxyethyl cellulose, 0.4-0.5 part of organic bentonite, 0.5-0.6 part of hydrated magnesium silicate, 0.3-1.5 parts of modified urea water-based paint liquid rheological additive, 30 parts of water-based epoxy emulsion, 1 part of epoxy silane coupling agent, 2.5-2.8 parts of additive and 11-12 parts of water.
Further, the auxiliary agent comprises at least one of a dispersing agent, a defoaming agent, a leveling agent and an anti-flash rust auxiliary agent.
Further, the component A is prepared from the following raw materials in parts by mass: 3 parts of titanium dioxide, 0.05 part of carbon black, 25 parts of talcum powder, 25 parts of feldspar powder, 0.4-0.6 part of aerogel, 6-7 parts of aluminum tripolyphosphate, 0.2-0.3 part of hydroxyethyl cellulose, 0.4-0.5 part of organic bentonite, 0.5-0.6 part of hydrated magnesium silicate, 0.3-1.5 parts of modified urea water-based paint liquid rheological additive, 30 parts of water-based epoxy emulsion, 1 part of epoxy silane coupling agent, 1 part of dispersing agent, 0.5 part of defoaming agent, 0.3 part of flatting agent, 0.8 part of flash rust prevention additive and 11-12 parts of water.
Further, the component A is prepared from the following raw materials in parts by mass: 3 parts of titanium dioxide, 0.05 part of carbon black, 25 parts of talcum powder, 25 parts of feldspar powder, 0.6 part of aerogel, 6-7 parts of aluminum tripolyphosphate, 0.3 part of hydroxyethyl cellulose, 0.5 part of organic bentonite, 0.5 part of hydrated magnesium silicate, 0.5-1.2 parts of modified urea water-based paint liquid rheological additive, 30 parts of water-based epoxy emulsion, 1 part of epoxy silane coupling agent, 1 part of dispersing agent, 0.5 part of defoaming agent, 0.3 part of flatting agent, 0.8 part of anti-flash rust additive and 11.45 parts of water.
Further, the mass percent of the epoxy curing agent in the component B is 50-60%.
Further, the component A and the component B are prepared into paint according to the mass ratio of 10 (0.5-1).
In addition, the invention also provides a preparation method of the aqueous two-component epoxy thick-slurry paint for the anticorrosive coating, which comprises the following steps: mixing the raw materials of the component A to obtain a component A; mixing the raw materials of the component B to obtain the component B; and mixing the component A and the component B to obtain the aqueous two-component epoxy thick paste paint for the anticorrosive coating.
In addition, the invention also provides application of the aqueous two-component epoxy thick-paste paint for the anticorrosive coating in vehicle, ship, mechanical engineering, wind power generation equipment, large-scale steel structure and building corrosion prevention.
(III) advantageous effects
The invention provides a water-based two-component epoxy thick-paste paint for an anticorrosive coating and a preparation method thereof, wherein the epoxy thick-paste paint comprises a component A and a component B; wherein the component A is prepared from the following raw materials: titanium dioxide, carbon black, talcum powder, feldspar powder, aerogel, aluminum tripolyphosphate, hydroxyethyl cellulose, organic bentonite, hydrated magnesium silicate, a modified urea water-based paint liquid rheological additive, a water-based epoxy emulsion, an epoxy silane coupling agent, an additive and water; the component B comprises an epoxy curing agent. The invention can solve the technical problems of poor paint film performance and corrosion prevention effect caused by slow paint film thickness rise, easy sagging during spraying, more micro-pores in the paint film and on the surface, and higher porosity, and achieves the technical effects of high dry film thickness, good paint film adhesion, high compactness, and excellent chemical resistance and salt spray resistance.
Compared with the prior art, the invention has at least the following beneficial effects:
the invention provides aqueous two-component epoxy thick-paste paint for an anticorrosive coating, which comprises a component A and a component B. In the component A, titanium dioxide and carbon black can be matched with each other, so that a paint film has certain covering power while the paint film is endowed with color; the talcum powder and the feldspar powder are matched with each other, so that the solid content and the volume solid content of the coating can be better increased; aluminum tripolyphosphate provides excellent corrosion resistance. In the component A, hydroxyethyl cellulose, organic bentonite, hydrated magnesium silicate, aerogel, aqueous epoxy emulsion and epoxy silane coupling agent can obtain synergistic effect, so that the thixotropy and viscosity of the coating can be improved, and the adhesive force, compactness and corrosion resistance of a paint film can be enhanced. Specifically, the hydrophobic main chain of the hydroxyethyl cellulose is associated with the surrounding water molecules through hydrogen bonds, so that the free movement space of particles can be reduced, or the viscosity is improved through the winding of a molecular chain, and the coating is endowed with better viscosity and thixotropy; the organic bentonite can be mixed with water to form gel, so that the coating has good thixotropy, and is convenient to form a thicker paint film without sagging during spraying construction; after the hydrated magnesium silicate is mixed with water, a three-dimensional colloid structure (card Gong Jiegou) is quickly formed, so that the viscosity of a coating system is increased, and the coating system also has high suspension property, thickening property, thixotropy and good compatibility; the aerogel has an expansion effect, a thixotropic effect and hydrophobicity, and can improve the corrosion resistance of the coating; the interaction of the aqueous epoxy emulsion, water and aerogel ensures that the system has quite strong thixotropy; the epoxy silane coupling agent can improve the compactness of a paint film and enhance the adhesive force of the paint film. When added to an aqueous coating, the liquid rheology additives of the modified urea aqueous coating form a three-dimensional network structure that provides thixotropic flow properties to prevent settling and improve sag resistance. The aqueous epoxy emulsion in the component A can be self-emulsified, and can improve the viscosity and the thixotropy after being mixed with the curing agent in the component B.
The preparation method of the aqueous two-component epoxy thick-slurry paint for the anticorrosive coating has the characteristics of simplicity and high efficiency, has an excellent anticorrosive effect when being applied to corrosion prevention of vehicles, ships, mechanical engineering, wind power generation equipment and buildings, has a longer anticorrosive service life, and can adapt to a more harsh service environment.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be given in conjunction with examples.
The invention provides a water-based two-component epoxy thick-paste paint for an anticorrosive coating, which comprises a component A and a component B; the component A is mainly prepared from the following raw materials:
titanium dioxide, carbon black, talcum powder, feldspar powder, aerogel, aluminum tripolyphosphate, hydroxyethyl cellulose, organic bentonite, hydrated magnesium silicate, a modified urea water-based paint liquid rheological aid, a water-based epoxy emulsion, an epoxy silane coupling agent, an aid and water; the component B comprises an epoxy curing agent.
In the aqueous two-component epoxy thick-paste paint for the anticorrosive coating, the titanium dioxide and the carbon black in the component A can be matched with each other, so that the paint film has a certain covering power while the paint film is endowed with color; the talcum powder and the feldspar powder in the component A are matched with each other, so that the solid content and the volume solid content of the coating can be better increased; at the same time, aluminum tripolyphosphate can provide excellent corrosion resistance.
In the aqueous two-component epoxy thick-slurry paint for the anticorrosive coating, hydroxyethyl cellulose, organic bentonite, hydrated magnesium silicate, aerogel, aqueous epoxy emulsion and epoxy silane coupling agent in the component A can obtain synergistic action, so that the thixotropy and viscosity of the paint can be improved, and the adhesive force, compactness and anticorrosive performance of a paint film can be enhanced.
Specifically, the hydrophobic main chain of the hydroxyethyl cellulose is associated with the surrounding water molecules through hydrogen bonds, so that the free movement space of particles can be reduced, or the viscosity is improved through the winding of a molecular chain, and the coating is endowed with better viscosity and thixotropy; the organic bentonite has a three-dimensional network structure of nano silicon dioxide, forms gel after being mixed with water, and is matched with the anti-settling thixotropic powder agent, so that the coating has good thixotropy, a paint film is uniformly sealed on a zinc coating and is tightly combined with the zinc coating, a perfect surface state of finish paint is provided, the effect of starting and stopping is achieved, and a thicker paint film is formed during spraying construction without sagging; after the hydrated magnesium silicate is mixed with water, a three-dimensional colloid structure (card Gong Jiegou) is quickly formed, and a card house structure is formed in the coating by matching with the special structure of the organic bentonite and the anti-settling thixotropic powder agent, so that the thixotropy of the coating is enhanced, the viscosity of a coating system can be increased, and the coating has high suspensibility, thickening property and good compatibility; the aerogel has an expansion effect, a thixotropic effect and hydrophobicity, and can improve the corrosion resistance of the coating; the interaction of the aqueous epoxy emulsion, water and aerogel ensures that the system has quite strong thixotropy; the epoxy silane coupling agent can improve the compactness of a paint film and enhance the adhesive force of the paint film. When added to an aqueous coating, the liquid rheology additives of the modified urea aqueous coating form a three-dimensional network structure that provides thixotropic flow properties to prevent settling and improve sag resistance.
In addition, the aqueous epoxy emulsion in the component A can be self-emulsified, and the viscosity and the thixotropy of the system can be improved after the aqueous epoxy emulsion is mixed with the curing agent in the component B.
Therefore, through the mutual matching and action of the raw materials, the aqueous two-component epoxy thick-slurry paint for the anticorrosive coating has the characteristics of good paint film adhesion, high compactness, and strong chemical resistance and salt spray resistance.
In a preferred embodiment, in the aqueous two-component epoxy thick-paste paint for the anticorrosive coating, the component A is mainly prepared from the following raw materials in parts by mass:
3-10 parts of titanium dioxide, 0.05-0.2 part of carbon black, 25-30 parts of talcum powder, 25-30 parts of feldspar powder, 0.4-0.6 part of aerogel, 6-8 parts of aluminum tripolyphosphate, 0.1-0.3 part of hydroxyethyl cellulose, 0.3-0.5 part of organic bentonite, 0.4-0.6 part of hydrated magnesium silicate, 0.3-1.5 parts of modified urea water-based paint liquid rheological additive, 28-30 parts of water-based epoxy emulsion, 0.5-1 part of epoxy silane coupling agent, 2.5-3 parts of additive and 10-12 parts of water.
Under the selected raw material types and the dosage proportion, the water-based epoxy emulsion, the water, the aerogel, the organic bentonite, the hydrated magnesium silicate and the like interact, so that a coating system has quite strong thixotropy, the one-time construction wet film thickness can reach 475 micrometers, the dry film thickness can reach 250 micrometers, the film thickness requirement of the intermediate coating in the field of heavy-duty anticorrosive coatings is met, the adhesive force between the intermediate coating and the primer and the finish coating is relatively outstanding, the integral chemical resistance and salt fog resistance are relatively excellent, and the salt fog resistance can reach 1500 hours.
In the aqueous two-component epoxy thick-slurry paint for the anticorrosive coating, the typical but non-limiting mass parts of titanium dioxide are, for example, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts and 10 parts; typical but non-limiting mass parts of carbon black are for example 0.05 parts, 0.1 parts, 0.15 parts, 0.2 parts; typical but non-limiting parts by mass of talc are, for example, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts; typical but not limiting parts by mass of feldspar powder are, for example, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts; typical but non-limiting mass parts of aerogel are for example 0.4 parts, 0.5 parts, 0.6 parts; typical but non-limiting parts by mass of aluminum tripolyphosphate are for example 6 parts, 7 parts, 8 parts; typical but non-limiting mass parts of hydroxyethyl cellulose are for example 0.1 parts, 0.2 parts, 0.3 parts; typical but not limiting mass parts of the organobentonite are for example 0.3 parts, 0.4 parts, 0.5 parts; typical but non-limiting parts by mass of the hydrated magnesium silicate are, for example, 0.4 parts, 0.5 parts, 0.6 parts; typical but non-limiting parts by mass of the modified urea aqueous coating liquid rheological aid are, for example, 0.3 part, 0.5 part, 0.7 part, 0.9 part, 1.1 part, 1.3 part, 1.5 part; typical but non-limiting parts by weight of the aqueous epoxy emulsion are, for example, 28 parts, 29 parts, 30 parts; typical but non-limiting mass parts of the epoxy silane coupling agent are, for example, 0.5 parts, 0.8 parts, 1 part; typical but not limiting mass parts of auxiliaries are, for example, 2.5 parts, 2.6 parts, 2.7 parts, 2.8 parts, 2.9 parts, 3 parts; typical but not limiting parts by mass of water are, for example, 10 parts, 11 parts, 12 parts.
In a preferred embodiment, in the aqueous two-component epoxy thick-paste paint for the anticorrosive coating, the component A is mainly prepared from the following raw materials in parts by mass:
3 parts of titanium dioxide, 0.05 part of carbon black, 25 parts of talcum powder, 25 parts of feldspar powder, 0.4-0.6 part of aerogel, 6-7 parts of aluminum tripolyphosphate, 0.2-0.3 part of hydroxyethyl cellulose, 0.4-0.5 part of organic bentonite, 0.5-0.6 part of hydrated magnesium silicate, 0.3-1.5 parts of modified urea water-based paint liquid rheological additive, 30 parts of water-based epoxy emulsion, 1 part of epoxy silane coupling agent, 2.5-2.8 parts of additive and 11-12 parts of water.
The selected components and the ratio of the components in parts by weight can further ensure that the two-component epoxy thick-slurry paint has the characteristics of good paint film adhesion, high compactness, and strong chemical resistance and salt spray resistance.
In a preferred embodiment, the auxiliary of the present invention includes, but is not limited to, at least one of a dispersant, a defoamer, a leveling agent, and an anti-flash rust auxiliary. The selected auxiliary agent can better improve the comprehensive performance of the two-component epoxy thick-paste paint.
In a preferred embodiment, in the aqueous two-component epoxy thick-paste paint for the anticorrosive coating, the component A is mainly prepared from the following raw materials in parts by mass:
3 parts of titanium dioxide, 0.05 part of carbon black, 25 parts of talcum powder, 25 parts of feldspar powder, 0.4-0.6 part of aerogel, 6-7 parts of aluminum tripolyphosphate, 0.2-0.3 part of hydroxyethyl cellulose, 0.4-0.5 part of organic bentonite, 0.5-0.6 part of hydrated magnesium silicate, 0.3-1.5 parts of modified urea water-based paint liquid rheological additive, 30 parts of water-based epoxy emulsion, 1 part of epoxy silane coupling agent, 1 part of dispersing agent, 0.5 part of defoaming agent, 0.3 part of flatting agent, 0.8 part of flash rust prevention additive and 11-12 parts of water.
In a preferred embodiment, in the aqueous two-component epoxy thick-paste paint for the anticorrosive coating, the component A is mainly prepared from the following raw materials in parts by mass:
3 parts of titanium dioxide, 0.05 part of carbon black, 25 parts of talcum powder, 25 parts of feldspar powder, 0.6 part of aerogel, 6-7 parts of aluminum tripolyphosphate, 0.3 part of hydroxyethyl cellulose, 0.5 part of organic bentonite, 0.5 part of hydrated magnesium silicate, 0.5-1.2 parts of modified urea water-based paint liquid rheological additive, 30 parts of water-based epoxy emulsion, 1 part of epoxy silane coupling agent, 1 part of dispersing agent, 0.5 part of defoaming agent, 0.3 part of flatting agent, 0.8 part of anti-flash rust additive and 11.45 parts of water.
The raw materials, the types of the additives and the specific weight ratio of the additives can perfectly realize the purposes of good paint film adhesion, high compactness, strong chemical resistance and strong salt mist resistance of the two-component epoxy thick-slurry paint. The product of the invention is water-based environment-friendly paint without VOC emission. The special raw material types and the dosage proportion thereof are cooperatively matched, so that the product has super-strong thixotropy, can eliminate bubbles generated by combination of common intermediate paint and a zinc coating, has higher film thickness, can improve the corrosion resistance of the whole coating, including chemical resistance, and can cover the over-rough surface of the zinc coating, and after the finish paint is coated, the finish paint can achieve the effect of beautiful decoration.
In a preferred embodiment, the epoxy curing agent in the B component of the aqueous two-component epoxy paste paint for anticorrosive coatings of the present invention is present in an amount of 50 to 60% by mass, typically but not limited to 50%, 55%, 60% by mass.
In the present invention, the epoxy curing agent may preferably be an aqueous epoxy curing agent, and the epoxy curing agent is mixed with water to obtain the B component.
In the aqueous two-component epoxy thick-paste paint for the anticorrosive coating, the viscosity of a paint system can be obviously improved and higher thixotropy is endowed after the aqueous epoxy emulsion in the component A and the epoxy curing agent in the component B are uniformly mixed.
In a preferred embodiment, in the aqueous two-component epoxy thick-paste paint for anticorrosive coatings of the invention, the component A and the component B are formulated in a mass ratio of 10 (0.5-1).
The paint mixing mass ratio of the component A and the component B defined by the invention can better exert the technical effect of the coating.
The invention also provides a preparation method of the aqueous two-component epoxy thick-paste paint for the anticorrosive coating, which comprises the following steps: mixing the raw materials of the component A to obtain a component A; mixing the raw materials of the component B to obtain the component B; and mixing the component A and the component B to obtain the aqueous two-component epoxy thick paste paint for the anticorrosive coating.
The preparation method of the aqueous two-component epoxy thick-paste paint for the anticorrosive coating provided by the invention has the characteristics of simplicity and high efficiency.
In addition, the invention also provides application of the aqueous two-component epoxy thick-paste paint for the anticorrosive coating in corrosion prevention of vehicles, ships, mechanical engineering, wind power generation equipment and buildings, and the aqueous two-component epoxy thick-paste paint has an excellent corrosion prevention effect, is longer in corrosion prevention service life, and can adapt to harsher use environments.
The invention is further illustrated by the following examples. The materials in the examples are prepared according to known methods or are directly commercially available, unless otherwise specified.
Examples 1 to 7
An aqueous two-component epoxy thick-paste paint for an anticorrosive coating comprises a component A and a component B; the preparation raw materials and the parts by mass of the component A in the examples 1 to 7 are shown in the table 1; in examples 1-7, the component B is a mixture of an epoxy curing agent and water, wherein the mass percent of the epoxy curing agent is 50-60%.
The preparation method of the aqueous two-component epoxy thick paste paint for the anticorrosive coatings of examples 1 to 7 comprises the following steps: mixing the raw materials of the component A in proportion to obtain a component A; mixing an epoxy curing agent and water to obtain a component B; and (3) preparing the component A and the component B according to the mass ratio of 10.
Comparative examples 1 to 4
An aqueous two-component epoxy thick-paste paint for an anticorrosive coating comprises a component A and a component B, wherein the preparation raw materials and the parts by mass of the component A in comparative examples 1-4 are shown in Table 1. The component B of comparative examples 1-4 is a mixture of epoxy curing agent and water, wherein the mass percent of the epoxy curing agent is 50-60%; the preparation method of the aqueous two-component epoxy thick paste paint for the anticorrosive coatings of the comparative examples 1 to 4 is the same as that of the aqueous two-component epoxy thick paste paint for the component 8,A and the component B in the example 1, and the mass ratio of the component B is 10.
TABLE 1 Components of epoxy mastic paint films of examples 1-7 and comparative examples 1-4
Performance test
The epoxy pastes of examples 1 to 7 and comparative examples 1 to 4 were prepared as paint films according to the preparation method of GB/T1727-1992 and the properties of the paint films were determined, the data being shown in Table 2.
Adhesion force: GB/T5210-2006
Acid resistance: GB/T9274-1988
Alkali resistance: GB/T9274-1988
Salt spray resistance: GB/T1771-2007
Heat resistance: GB/T1735-2009
TABLE 2 Properties of the epoxy mastic paint films of examples 1 to 7 and comparative examples 1 to 4
As can be seen from Table 2, compared with comparative examples 1 to 4, examples 1 to 7 of the present invention have the characteristics of good paint film adhesion, good heat resistance, and strong chemical and salt spray resistance through the mutual matching and action of the raw materials.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The water-based two-component epoxy thick-paste paint for the anticorrosive coating is characterized by comprising a component A and a component B; the component A is prepared from the following raw materials: titanium dioxide, carbon black, talcum powder, feldspar powder, aerogel, aluminum tripolyphosphate, hydroxyethyl cellulose, organic bentonite, hydrated magnesium silicate, a modified urea water-based paint liquid rheological additive, a water-based epoxy emulsion, an epoxy silane coupling agent, an additive and water; the component B comprises an epoxy curing agent.
2. The epoxy mastic as claimed in claim 1, wherein the component a is prepared from the following raw materials in parts by mass: 3-10 parts of titanium dioxide, 0.05-0.2 part of carbon black, 25-30 parts of talcum powder, 25-30 parts of feldspar powder, 0.4-0.6 part of aerogel, 6-8 parts of aluminum tripolyphosphate, 0.1-0.3 part of hydroxyethyl cellulose, 0.3-0.5 part of organic bentonite, 0.4-0.6 part of hydrated magnesium silicate, 0.3-1.5 parts of modified urea water-based paint liquid rheological additive, 28-30 parts of water-based epoxy emulsion, 0.5-1 part of epoxy silane coupling agent, 2.5-3 parts of additive and 10-12 parts of water.
3. The epoxy mastic as claimed in claim 2, wherein the component a is prepared from the following raw materials in parts by mass: 3 parts of titanium dioxide, 0.05 part of carbon black, 25 parts of talcum powder, 25 parts of feldspar powder, 0.4-0.6 part of aerogel, 6-7 parts of aluminum tripolyphosphate, 0.2-0.3 part of hydroxyethyl cellulose, 0.4-0.5 part of organic bentonite, 0.5-0.6 part of hydrated magnesium silicate, 0.3-1.5 parts of modified urea water-based paint liquid rheological additive, 30 parts of water-based epoxy emulsion, 1 part of epoxy silane coupling agent, 2.5-2.8 parts of additive and 11-12 parts of water.
4. The epoxy grout paint according to claim 3, wherein said adjuvant comprises at least one of a dispersant, a defoamer, a leveling agent and a flash rust prevention adjuvant.
5. The epoxy mastic paint of any of claims 1-4, wherein the A component is prepared from the following raw materials in parts by mass: 3 parts of titanium dioxide, 0.05 part of carbon black, 25 parts of talcum powder, 25 parts of feldspar powder, 0.4-0.6 part of aerogel, 6-7 parts of aluminum tripolyphosphate, 0.2-0.3 part of hydroxyethyl cellulose, 0.4-0.5 part of organic bentonite, 0.5-0.6 part of hydrated magnesium silicate, 0.3-1.5 parts of modified urea water-based paint liquid rheological additive, 30 parts of water-based epoxy emulsion, 1 part of epoxy silane coupling agent, 1 part of dispersing agent, 0.5 part of defoaming agent, 0.3 part of flatting agent, 0.8 part of flash rust prevention additive and 11-12 parts of water.
6. The epoxy mastic paint of any of claims 1-4, wherein the component A is prepared from the following raw materials in parts by mass: 3 parts of titanium dioxide, 0.05 part of carbon black, 25 parts of talcum powder, 25 parts of feldspar powder, 0.6 part of aerogel, 6-7 parts of aluminum tripolyphosphate, 0.3 part of hydroxyethyl cellulose, 0.5 part of organic bentonite, 0.5 part of hydrated magnesium silicate, 0.5-1.2 parts of modified urea water-based paint liquid rheological additive, 30 parts of water-based epoxy emulsion, 1 part of epoxy silane coupling agent, 1 part of dispersing agent, 0.5 part of defoaming agent, 0.3 part of flatting agent, 0.8 part of anti-flash rust additive and 11.45 parts of water.
7. The epoxy grout paint according to any one of claims 1 to 4, wherein the mass percentage of the epoxy curing agent in the B component is 50 to 60%.
8. The epoxy grout paint according to any of claims 1 to 4 wherein the component A and the component B are formulated at a mass ratio of 10 (0.5-1).
9. A method for preparing a two-component aqueous epoxy mastic for anticorrosive coatings according to any of claims 1 to 8, characterized in that it comprises the following steps: mixing the raw materials of the component A to obtain a component A; mixing the raw materials of the component B to obtain the component B; and mixing the component A and the component B to obtain the aqueous two-component epoxy thick-slurry paint for the anticorrosive coating.
10. Use of the aqueous two-component epoxy paste paint for anticorrosive coatings according to any one of claims 1 to 8 for the corrosion protection of vehicles, ships, mechanical engineering, wind power plants, large steel structures and buildings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211369873.0A CN115651481A (en) | 2022-11-03 | 2022-11-03 | Water-based two-component epoxy thick-paste paint for anticorrosive coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211369873.0A CN115651481A (en) | 2022-11-03 | 2022-11-03 | Water-based two-component epoxy thick-paste paint for anticorrosive coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115651481A true CN115651481A (en) | 2023-01-31 |
Family
ID=84995798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211369873.0A Pending CN115651481A (en) | 2022-11-03 | 2022-11-03 | Water-based two-component epoxy thick-paste paint for anticorrosive coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115651481A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478594A (en) * | 2023-04-04 | 2023-07-25 | 雅图高新材料股份有限公司 | High-performance aqueous epoxy frame thick paste paint and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732131A (en) * | 2012-07-23 | 2012-10-17 | 河北晨阳工贸集团有限公司 | Paint in aqueous epoxy thick paste and preparation method thereof |
| CN104845499A (en) * | 2015-06-08 | 2015-08-19 | 成都拜迪新材料有限公司 | Preparation method for waterborne epoxy paste paint |
| CN105733403A (en) * | 2016-02-24 | 2016-07-06 | 深圳市深赛尔股份有限公司 | Waterborne paint of container two-coating system and preparing method and coating technology thereof |
-
2022
- 2022-11-03 CN CN202211369873.0A patent/CN115651481A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732131A (en) * | 2012-07-23 | 2012-10-17 | 河北晨阳工贸集团有限公司 | Paint in aqueous epoxy thick paste and preparation method thereof |
| CN104845499A (en) * | 2015-06-08 | 2015-08-19 | 成都拜迪新材料有限公司 | Preparation method for waterborne epoxy paste paint |
| CN105733403A (en) * | 2016-02-24 | 2016-07-06 | 深圳市深赛尔股份有限公司 | Waterborne paint of container two-coating system and preparing method and coating technology thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘保磊;陈芳;吴远程;许驰;: "厚浆型双组分环氧汽车底盘漆的研制", 上海涂料 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478594A (en) * | 2023-04-04 | 2023-07-25 | 雅图高新材料股份有限公司 | High-performance aqueous epoxy frame thick paste paint and preparation method and application thereof |
| CN116478594B (en) * | 2023-04-04 | 2023-11-28 | 雅图高新材料股份有限公司 | High-performance aqueous epoxy frame thick paste paint and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107987680B (en) | Water-based epoxy graphene anticorrosive paint | |
| CN102746766B (en) | Water-borne anticorrosion paint and method for preparing same | |
| CN109370364B (en) | Nano anticorrosive paint for metal surface in acid-related environment and preparation method thereof | |
| CN101284969B (en) | Solvent-free epoxy coal tar heavy duty anticorrosive coating and preparation process thereof | |
| CN110229601A (en) | Fluorocarbon coating and preparation method thereof and coating process | |
| CN105623504A (en) | Heat-dissipation anti-corrosive paint for ships | |
| CN105567080A (en) | High-temperature-resistant protective paint for ships | |
| CN109868015B (en) | Organic-inorganic composite water-based aluminum powder paint and preparation method thereof | |
| CN103351787A (en) | High-performance rust inhibiting primer for low surface treatment of mechanical equipment and preparation method of high-performance rust inhibiting primer | |
| CN111117426A (en) | High-corrosion-resistance flash-rust-resistant waterborne epoxy primer and preparation method thereof | |
| CN105255315A (en) | High-solid epoxy zinc phosphate primer paint and preparation method of high-solid epoxy zinc phosphate primer paint | |
| CN104650699A (en) | Anti-shedding corrosion-resistant modified epoxy coating and preparation method thereof | |
| CN111218171A (en) | Fluorosilicone type heat-insulating weather-resistant anticorrosive coating for island engineering steel base material and preparation method thereof | |
| CN112375463A (en) | Environment-friendly high-solid-content heavy-duty anticorrosive paint for inner wall of storage tank and preparation method thereof | |
| CN113072846A (en) | High-crosslinking asphalt waterproof water-based paint | |
| CN115651481A (en) | Water-based two-component epoxy thick-paste paint for anticorrosive coating and preparation method thereof | |
| CN114085584B (en) | Litchi surface multicolor paint and preparation method and application thereof | |
| CN112143269A (en) | Water-based inorganic zinc-rich coating and preparation method thereof | |
| CN114231120A (en) | Graphene modified waterborne epoxy anticorrosive paint and preparation method thereof | |
| CN110982312B (en) | Water-based shop primer with excellent initial water resistance and preparation method thereof | |
| CN112831244A (en) | Color coating paint and preparation method of color coated sheet applying color coating paint | |
| CN111909573A (en) | Graphene modified high chlorinated polyethylene resin anticorrosive paint and preparation method thereof | |
| CN111423752A (en) | Water-based inorganic zinc-rich primer for heavy corrosion protection | |
| CN108329807A (en) | A kind of single-component water-based acrylic acid -ol acid graphene anticorrosive paint of quick-drying | |
| CN114456651A (en) | Water-based acrylic acid waterproof coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230131 |