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CN-122011852-A - Single-component acrylic asphalt rust-carrying coating anti-corrosive paint

CN122011852ACN 122011852 ACN122011852 ACN 122011852ACN-122011852-A

Abstract

The application relates to a single-component acrylic asphalt rust-coated anticorrosive paint which comprises, by mass, 6-10 parts of water, 1-2 parts of a dispersing agent, 0.2-0.3 part of a pH regulator, 0.4-0.6 part of a defoaming agent, 5-7 parts of aluminum tripolyphosphate, 4-5 parts of iron oxide black, 45-55 parts of acrylic emulsion, 12-16 parts of asphalt, 2.5-3 parts of a film forming additive, 0.4-0.6 part of an anti-rust additive, 0.8-1.2 parts of a leveling agent, 0.8-1.2 parts of an anti-rust additive, 12-16 parts of graphene oxide composite microspheres and 2-10 parts of a silicon dioxide compound. The application has the effects of improving the corrosion resistance of the anticorrosive paint and long-acting corrosion resistance.

Inventors

  • FU CAIHONG
  • SHAN XIUJUN
  • LU XIANGZHI
  • ZHANG HUANHUAN

Assignees

  • 苏州大乘环保新材有限公司

Dates

Publication Date
20260512
Application Date
20260129

Claims (10)

  1. 1. The single-component acrylic asphalt rust-coated anticorrosive paint is characterized by comprising, by mass, 6-10 parts of water, 1-2 parts of a dispersing agent, 0.2-0.3 part of a pH regulator, 0.4-0.6 part of a defoaming agent, 5-7 parts of aluminum tripolyphosphate, 4-5 parts of iron oxide black, 45-55 parts of acrylic emulsion, 12-16 parts of asphalt, 2.5-3 parts of a film forming additive, 0.4-0.6 part of an anti-flash rust additive, 0.8-1.2 parts of a leveling agent, 0.8-1.2 parts of an anti-rust additive, 1-3 parts of a rust conversion agent, 12-16 parts of graphene oxide composite microspheres and 2-10 parts of a silicon dioxide compound.
  2. 2. The single-component acrylic asphalt rust-coated anticorrosive paint of claim 1, wherein the graphene oxide composite microsphere comprises 2-aminobenzothiazole and modified graphene oxide.
  3. 3. The single-component acrylic asphalt rust-coated anticorrosive paint according to claim 2, wherein the modified graphene oxide is prepared by the following method: Mixing graphene oxide with ethanol, adding adenosine, heating for reaction, centrifuging and washing to obtain adenosine composite graphene oxide, mixing the adenosine composite graphene oxide with water to obtain an adenosine composite graphene oxide dispersion, adding beta cyclodextrin into the adenosine composite graphene oxide dispersion, heating, stirring for reaction, centrifuging, washing and drying to obtain modified graphene oxide.
  4. 4. The single-component acrylic asphalt rust-coated anticorrosive paint according to claim 3, wherein the mass ratio of the adenosine, the graphene oxide and the beta-cyclodextrin is 1.1:1 (2.8-3.2).
  5. 5. The single-component acrylic asphalt rust-coated anticorrosive paint according to claim 2, wherein the graphene oxide composite microsphere is prepared by the following method: mixing modified graphene oxide with deionized water to obtain a modified graphene oxide dispersion liquid, mixing 2-aminobenzothiazole with acetone, adding the mixture into the modified graphene oxide dispersion liquid, treating the mixture under a vacuum condition, centrifugally washing the treated mixture, and finally drying the treated mixture to obtain the graphene oxide composite microsphere.
  6. 6. The single-component acrylic asphalt rust-coated anticorrosive paint according to claim 5, wherein the mass ratio of the modified graphene oxide to the 2-aminobenzothiazole is 1 (0.3-0.4).
  7. 7. The one-component acrylic asphalt rust coated anticorrosive paint of claim 1, wherein the silica composite comprises nano silica, dopamine hydrochloride and cetyltrimethylammonium chloride.
  8. 8. The one-component acrylic asphalt rust coated anticorrosive paint of claim 7, wherein the silica composite is prepared by the following method: Mixing dopamine hydrochloride and triethanolamine with water, dispersing, adding cetyl trimethyl ammonium chloride, heating and stirring, adding tetraethoxysilane, centrifuging after reaction, washing, removing excessive cetyl trimethyl ammonium chloride to obtain a prefabricated product, dispersing the prefabricated product in ethanol, adding 3-aminopropyl triethoxysilane, stirring for reaction, washing, and drying to obtain the silicon dioxide compound.
  9. 9. The single-component acrylic asphalt rust-coated anticorrosive paint according to claim 8, wherein the mass ratio of dopamine hydrochloride, cetyltrimethylammonium chloride and ethyl orthosilicate is 1.7 (2.4-2.8): 1.
  10. 10. The single-component acrylic asphalt rust-coated anticorrosive paint according to claim 1, wherein the mass ratio of the graphene oxide composite microspheres to the silicon dioxide composite is 1 (0.4-0.6).

Description

Single-component acrylic asphalt rust-carrying coating anti-corrosive paint Technical Field The application relates to the field of anticorrosive paint, in particular to a single-component acrylic asphalt rust-carrying coating anticorrosive paint. Background The rust coating technology is an important branch in the field of anticorrosive paint, can be directly applied to the surface of steel which is not thoroughly derusted, greatly saves the surface treatment cost, and has remarkable economic value. In recent years, the technology is rapidly developed towards environmental protection and high performance under the driving of the demands of industries such as infrastructure, ocean engineering, vehicle manufacturing and the like. The demands of the markets at home and abroad for water-based, low-VOCs and solvent-free products are continuously rising, and particularly under the background of the 'double carbon' target and the enhancement of environmental protection regulations, the traditional high-VOCs solvent-based coating is subjected to transformation upgrading pressure. At present, a certain gap still exists in the technical development at home and abroad. The international market has promoted the high performance environmental protection product with salt fog resistance exceeding 5000 hours, and has continued innovations in sustainability and long-term protection. In contrast, although the domestic technology is rapidly advanced under the promotion of policies, the problem of insufficient performance of high-end products still exists generally, and many environment-friendly rust paint is difficult to consider both the penetration stability of a rust layer and the long-acting corrosion resistance, so that the development of the water-based rust paint which can meet the environment-friendly requirement and has excellent penetration stability of the rust layer, strong adhesive force and long-acting corrosion resistance has important significance. Disclosure of Invention In order to further improve the corrosion resistance and the adhesion performance of the anticorrosive paint, the application provides the single-component acrylic asphalt rust-coated anticorrosive paint. The application provides a single-component acrylic asphalt rust-coated anticorrosive paint, which adopts the following technical scheme: The single-component acrylic asphalt rust-coated anticorrosive paint comprises, by mass, 6-10 parts of water, 1-2 parts of a dispersing agent, 0.2-0.3 part of a pH regulator, 0.4-0.6 part of a defoaming agent, 5-7 parts of aluminum tripolyphosphate, 4-5 parts of iron oxide black, 45-55 parts of acrylic emulsion, 12-16 parts of asphalt, 2.5-3 parts of a film forming additive, 0.4-0.6 part of an anti-flash rust additive, 0.8-1.2 parts of a leveling agent, 0.8-1.2 parts of an anti-rust additive, 1-3 parts of a rust conversion agent, 12-16 parts of graphene oxide composite microspheres and 2-10 parts of a silicon dioxide compound. By adopting the technical scheme, the corrosion resistance and stability of a coating system are improved through the bonding of the functional groups of acrylic resin and metal, the passivation reaction of a phosphate conversion agent, an interpenetrating network structure formed by asphalt and resin and the stabilization effect of aluminum tripolyphosphate on a rust layer, meanwhile, the graphene oxide composite microsphere and silicon dioxide composite are introduced, a physical barrier and chemical slow-release dual-reinforcement protection network is cooperatively constructed, a short plate with long-acting corrosion resistance of a basic component is filled, and the corrosion resistance and the service life of a coating are further improved. Preferably, the graphene oxide composite microsphere comprises 2-aminobenzothiazole and modified graphene oxide. By adopting the technical scheme, the modified graphene oxide is used as a carrier to load the corrosion inhibitor, so that the early consumption or loss caused by direct addition of the corrosion inhibitor is reduced, the continuous and stable corrosion inhibition capability is provided for the coating, and the corrosion resistance and stability of the anticorrosive coating are further improved. Preferably, the modified graphene oxide is prepared by the following method: Mixing graphene oxide with ethanol, adding adenosine, heating for reaction, centrifuging and washing to obtain adenosine composite graphene oxide, mixing the adenosine composite graphene oxide with water to obtain an adenosine composite graphene oxide dispersion, adding beta cyclodextrin into the adenosine composite graphene oxide dispersion, heating, stirring for reaction, centrifuging, washing and drying to obtain modified graphene oxide. By adopting the technical scheme, the adenosine molecules modify the surface of the graphene oxide through the polar action, so that the compatibility of the graphene oxide with components such as aqueous acrylic emulsion,