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Salt-spray-resistant anticorrosive paint

An anti-corrosion coating and salt spray-resistant technology, used in anti-corrosion coatings, conductive coatings, coatings, etc., can solve problems such as insufficient longevity, and achieve the effects of blocking infiltration, extending diffusion paths, and highlighting mechanical properties.

Inactive Publication Date: 2020-06-26
JIANGSU KEHUAN INNOVATIVE MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution can pass the salt spray performance under 1500h, and is corrosion resistant. After 4000h, it can ensure that the metal does not rust, but its salt spray resistance time and corrosion resistance time are still not long enough. The technology in this field Personnel still need to continue to develop a solvent-based low surface treatment coating that is suitable for use in high-humidity and heavy-rust environments, and has high solid content and excellent comprehensive anti-corrosion properties such as salt spray resistance

Method used

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  • Salt-spray-resistant anticorrosive paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The invention discloses a salt spray anti-corrosion paint, which comprises a primer and a surface paint. The primer is composed of A component and B component, and the A component is composed of the following parts by mass: 80 parts of cresol, 80 parts of industrial unit Ning 80 parts, 37% formaldehyde 130 parts, methyl methacrylate 140 parts, novolak epoxy resin 350 parts, oxalic acid 0.8 parts, dimer acid 50 parts, methacrylic butyl fat 280 parts; B component consists of the following mass parts Components: 200 parts of polyimide resin, 80 parts of polyketone, 80 parts of paraformaldehyde, 150 parts of wangyiphenol, and 180 parts of graphene, wherein the mass ratio of component A to component B is 1:1.

[0020] The surface coating is composed of component C and component D, and component C is composed of the following mass fractions: 50 parts of solid fluororesin, 0.5 part of polycarboxylate, 0.1 part of emulsified methyl silicone oil, 0.4 part of silicone leveling age...

Embodiment 2

[0022] The invention discloses a salt spray anti-corrosion coating, which comprises a primer and a surface coating. The primer is composed of A component and B component, and the A component is composed of the following parts by mass: 100 parts of cresol, 100 parts of industrial unit Ning 100 parts, 37% formaldehyde 150 parts, methyl methacrylate 150 parts, phenolic epoxy resin 400 parts, oxalic acid 1 part, dimer acid 55 parts, methacrylic butyl fat 300 parts; B component consists of the following mass parts Data composition: 250 parts of polyimide resin, 90 parts of polyketone, 100 parts of paraformaldehyde, 180 parts of wangyiphenol, and 200 parts of graphene; the mass ratio of component A to component B is 1:1.

[0023] The surface coating is composed of components C and D, and component C is composed of the following mass fractions: 60 parts of solid fluororesin, 0.6 parts of polyacrylic acid derivatives, 0.2 parts of polyether defoamer, fluorocarbon leveling 0.5 parts of...

Embodiment 3

[0025] The invention discloses a salt-spray resistant anti-corrosion coating, which comprises a primer and a surface coating. The primer is composed of A component and B component, and the A component is composed of the following parts by mass: 120 parts of cresol, 120 parts of industrial unit Ning 120 parts, 37% formaldehyde 140 parts, methyl methacrylate 160 parts, phenolic epoxy resin 450 parts, oxalic acid 0.9 parts, dimer acid 60 parts, methacrylic butyl fat 350 parts; B component consists of the following mass parts Components: 300 parts of polyimide resin, 100 parts of polyketone, 120 parts of paraformaldehyde, 200 parts of wangyiphenol, 220 parts of graphene, wherein the mass ratio of component A to component B is 1.5:1.

[0026] The surface coating is composed of components C and D, and component C is composed of the following mass fractions: 80 parts of solid fluororesin, 1 part of maleic acid drunken copolymer, 0.15 parts of polysiloxane defoamer, acrylic acid 0.6 p...

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Abstract

The invention discloses a salt-spray-resistant anticorrosive paint which comprises bottom paint and surface paint. The bottom paint is composed of a component A and a component B; the component A comprises cresol, industrial tannin, 37% formaldehyde and other components; the component B comprises polyimide resin, polyketone, paraformaldehyde and the like. The surface layer coating is composed of acomponent C and a component D; the component C comprises solid fluororesin, graphene and other components; and the component D comprises polyimide resin and graphene. The coating prepared by the invention is divided into a primer and a finishing coat, the primer adopts epoxy resin as a main film-forming substance, and iron oxide red is used as a main antirust pigment; and the finishing coat is polyurethane acrylate coating. The coating disclosed by the invention has excellent corrosion resistance of epoxy resin and weather resistance of polyurethane, and has extremely strong corrosion resistance to atmosphere, seawater, salt mist, organic solvents and petroleum products.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and in particular relates to a salt-spray-resistant anti-corrosion coating prepared by coating high-strength film nano-polyimide with graphene. Background technique [0002] In various environments such as coastal areas and caverns in my country, when anti-corrosion coating or maintenance is carried out on large-scale steel structure facilities, components, pipelines, etc. It can only be derusted by hand or electric tools. After surface treatment, there are still thick rust layers and corrosion products, and the environment such as coastal areas, islands, reefs, ditches and caverns has high air humidity all year round. Steel structures In addition to being covered with a rust layer, the surface will also contain moisture, salt, etc. The simple rust coating is difficult to meet the use requirements under this working condition. Moisture, heat and salt spray resistant coating with wet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/06C09D4/02C09D5/08C09D5/24C09D7/61C09D179/08C09D127/12C09D7/65C09D7/63
CPCC08K2201/011C08L2205/035C09D4/06C09D5/08C09D5/24C09D179/08C09D7/61C09D7/63C09D7/65C08L27/12C08L83/04C08L77/00C08K3/36C08K3/042C08K5/101
Inventor 曲作鹏王海军曾宪峰田欣利
Owner JIANGSU KEHUAN INNOVATIVE MATERIAL CO LTD