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Anticorrosion coating for steel structure

A technology for anti-corrosion coatings and steel structures, applied in anti-corrosion coatings, anti-fouling/underwater coatings, epoxy resin coatings, etc., can solve the problems of high VOC emissions, poor comprehensive anti-corrosion performance, poor coating durability, etc. The effect of light effect, good adhesion and long service life

Active Publication Date: 2021-07-27
沈阳市金海韵涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a steel structure anti-corrosion coating, which uses water-based epoxy resin as the matrix material, and uses nano-titanium dioxide and modified graphene as the anti-corrosion material to solve the problem of high VOC emissions in current anti-corrosion coatings. Quantity, poor comprehensive anti-corrosion performance and poor coating durability

Method used

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Examples

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Effect test

Embodiment 1

[0038] An anti-corrosion coating for steel structures, which is prepared by mixing component A and component B at a weight ratio of 5:2, wherein component A is composed of the following raw materials in parts by weight: 25 parts of epoxy resin mixture, 15 parts Composite nanopowder, 5 parts of modified graphene oxide, 5 parts of filler, 5 parts of dispersant, 0.4 part of wetting agent, 0.8 part of thickener and 0.2 part of anti-sedimentation agent;

[0039] Epoxy resin mixture is the mixture that E44 epoxy resin and E12 epoxy resin weight ratio are 1: 1;

[0040] Component B consists of ketimine and aluminum chloride in a weight ratio of 3:1;

[0041] The preparation method of steel structure anticorrosion paint specifically comprises the following steps:

[0042] (1) Mix the epoxy resin and deionized water in said parts by weight under stirring conditions, preheat at 80°C for 20min, lower the temperature to normal temperature to form an epoxy resin emulsion;

[0043] (2) Di...

Embodiment 2

[0050] An anti-corrosion coating for steel structures, which is prepared by mixing component A and component B at a weight ratio of 5:2, wherein component A is composed of the following raw materials in parts by weight: 40 parts of epoxy resin mixture, 17.5 parts Composite nanopowder, 7.5 parts of modified graphene oxide, 11.5 parts of filler, 7.5 parts of dispersant, 0.5 part of wetting agent, 1.0 part of thickener and 0.25 part of anti-settling agent;

[0051] Epoxy resin mixture is the mixture that E44 epoxy resin and E12 epoxy resin weight ratio are 1: 1;

[0052] Component B consists of ketimine and aluminum chloride in a weight ratio of 4:1;

[0053] The preparation of steel structure anticorrosion coating specifically comprises the following steps:

[0054] (1) Mix the epoxy resin and deionized water in said parts by weight under agitation, preheat at 90°C for 15 minutes, and lower the temperature to normal temperature to form an epoxy resin emulsion;

[0055] (2) Dis...

Embodiment 3

[0062] An anti-corrosion paint for steel structures is prepared by mixing component A and component B at a weight ratio of 5:2, wherein component A is composed of the following raw materials in parts by weight: 55 parts of epoxy resin mixture, 20 parts Composite nanopowder, 10 parts of modified graphene oxide, 18 parts of filler, 10 parts of dispersant, 0.6 part of wetting agent, 1.2 parts of thickener and 0.3 part of anti-sedimentation agent;

[0063] Epoxy resin mixture is the mixture that E44 epoxy resin and E12 epoxy resin weight ratio are 1: 1;

[0064] Component B consists of ketimine and aluminum chloride in a weight ratio of 5:1;

[0065] The preparation of steel structure anticorrosion coating specifically comprises the following steps:

[0066] (1) Mix the epoxy resin and deionized water in said parts by weight under agitation, preheat at 100°C for 10 minutes, and lower the temperature to normal temperature to form an epoxy resin emulsion;

[0067] (2) Dispersing t...

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Abstract

The invention discloses a steel structure anticorrosion coating and a preparation method thereof. The steel structure anticorrosion coating is prepared by mixing component A and component B at a weight ratio of 5:2, wherein component A is composed of the following parts by weight: Quantity: 25‑55 parts of epoxy resin mixture, 15‑20 parts of composite nanopowder, 5‑10 parts of modified graphene oxide, 5‑18 parts of filler, 5‑10 parts of dispersant, 0.4‑0.6 part of wetting agent , 0.8-1.2 parts of thickener and 0.2-0.3 part of anti-settling agent are prepared; the coating of the present invention is based on water-based epoxy resin, and the modified nanocomposite powder and modified graphene oxide are in the matrix as additives With good dispersibility, the paint coating has the ability of photocathode protection and non-metal protection, the coating has excellent long-term comprehensive anti-corrosion ability, and has self-cleaning ability.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a steel structure anticorrosion coating. Background technique [0002] As an energy-saving, green and environmentally friendly material, steel structure is widely used in various engineering buildings. However, steel structure materials also have disadvantages such as poor heat resistance, fire resistance, and corrosion resistance. In complex application fields, steel structure materials face Different environments have higher requirements for its anti-corrosion performance. The occurrence of steel structure corrosion will significantly reduce the strength, plasticity, toughness and other mechanical properties of the steel structure, and reduce its use effect. At present, most of the surfaces are coated with fireproof and anti-corrosion coatings protection of steel structures. [0003] At present, anticorrosion methods for steel structures include cathodic protection, anodic protection, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C09D5/16C09D7/61C09D7/63
CPCC08K2003/2241C08K2201/011C08K2201/014C08L2201/08C08L2205/025C08L2205/035C09D5/08C09D5/1618C09D5/1662C09D5/1687C09D163/00C08L63/00C08K13/06C08K9/04C08K3/22C08K3/042C08K3/36C08K5/132C08K3/346C08K3/34
Inventor 曹红杰贺爱轩贺国仓曹永杰李龑毛自高戴宁王双锋
Owner 沈阳市金海韵涂料有限公司
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