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Epoxy finishing coat and preparation method thereof

A technology of epoxy surface and topcoat, which is applied in the direction of epoxy resin coating, coating, fireproof coating, etc., can solve the problems of not having excellent performance, and achieve the effect of excellent high temperature resistance and high barrier property

Inactive Publication Date: 2019-03-01
安徽康瑞高科新材料技术工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual use, it is often required that the coatings used on metal surfaces have better barrier properties and high temperature resistance properties, and the above-mentioned disclosed patents do not have such excellent properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] A kind of epoxy topcoat is made up of A component and B component, and the formula of this epoxy topcoat by mass parts is:

[0035] Component A includes: 90 parts of hydrogenated bisphenol A epoxy resin; 20 parts of epoxy resin TDE85; 10 parts of hybrid kaolin material; 20 parts of butyl titanate; 10 parts of fluorocarbon silane coupling agent; 11 parts of joint agent; 11 parts of other silicone precursors; 0.3 parts of dispersant; 0.9 parts of leveling agent; 2 parts of defoamer; 1 part of accelerator; 150 parts of solvent;

[0036] Component B includes: 1500 parts of amine curing agent; 1500 parts of solvent; 700 parts of zein solution;

[0037] The weight ratio of A component to B component is 5:1.

[0038] In the formulation of this example, the model of hydrogenated bisphenol-A epoxy resin is AL-3040; the fluorine-containing silane coupling agent is: dodecafluoroalkyltrimethoxysilane; other organosilicon precursors are dimethyl dimethoxysilane Methoxysilane; the ...

example 2

[0054] A kind of epoxy topcoat is made up of A component and B component, and the formula of this epoxy topcoat by mass parts is:

[0055] Component A includes: 90 parts of hydrogenated bisphenol A epoxy resin; 20 parts of epoxy resin TDE85; 10 parts of hybrid kaolin material; 20 parts of butyl titanate; 10 parts of fluorocarbon silane coupling agent; 11 parts of joint agent; 11 parts of other silicone precursors; 0.3 parts of dispersant; 0.9 parts of leveling agent; 2 parts of defoamer; 1 part of accelerator; 150 parts of solvent;

[0056] Component B includes: 1500 parts of amine curing agent; 1500 parts of solvent; 700 parts of zein solution;

[0057] The weight ratio of A component to B component is 5:1.

[0058]In the formulation of this example, the model of hydrogenated bisphenol-A epoxy resin is AL-3040; the fluorine-containing silane coupling agent is: dodecafluoroalkyltrimethoxysilane; other organosilicon precursors are dimethyl dimethoxysilane Methoxysilane; the d...

example 3

[0074] A kind of epoxy topcoat is made up of A component and B component, and the formula of this epoxy topcoat by mass parts is:

[0075] Component A includes: 100 parts of hydrogenated bisphenol A epoxy resin; 30 parts of epoxy resin TDE85; 10 parts of hybrid kaolin material; 15 parts of butyl titanate; 15 parts of fluorocarbon silane coupling agent; 15 parts of joint agent; 15 parts of other silicone precursors; 3 parts of dispersant; 3 parts of leveling agent; 2 parts of defoamer; 1 part of accelerator; 100 parts of solvent;

[0076] Component B includes: 100 parts of amine curing agent; 100 parts of solvent; 60 parts of zein solution;

[0077] The weight ratio of A component to B component is 3:1.

[0078] In the formulation of this example, the model of hydrogenated bisphenol-A epoxy resin is AL-3040; the fluorine-containing silane coupling agent is: dodecafluoroalkyltrimethoxysilane; other organosilicon precursors are dimethyl dimethoxysilane Methoxysilane; the disper...

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PUM

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Abstract

The invention belongs to the technical filed of coating preparation and particularly discloses an epoxy finishing coat and a preparation method thereof. The epoxy finishing coat is composed of a component A and a component B; wherein the component A includes, by mass, 80-100 parts of hydrogenated bisphenol A epoxy resin, 10-30 parts of epoxy resin TDE85, 5-10 parts of hybridized kaolin material, 5-20 parts of butyl titanate, 5-20 parts of a fluorocarbon-containing silane coupling agent, 10-20 parts of an epoxy-containing silane coupling agent, 10-30 parts of other organic silicon precursors, 0.1-5 parts of a dispersant, 0.1-5 parts of a flatting agent, 0.1-5 parts of a defoamer, 0.1-2 parts of an accelerant, and 50-150 parts of a solvent; the component B includes, by mass, 30-200 parts ofan amine curing agent, 20-200 parts of a solvent, and 50-80 parts of a zein solution. The epoxy finishing coat has good barrier performance and excellent high temperature resistance.

Description

technical field [0001] The invention relates to the technical field of paint preparation, in particular to an epoxy topcoat and a preparation method thereof. Background technique [0002] The biggest problem faced by steel in the application process is how to prevent corrosion and prolong its service life. The commonly used methods are: anti-corrosion coating, galvanizing, nickel plating, chrome plating, surface passivation and grease anti-corrosion, etc. Large-scale steel equipment such as bridges, transmission towers, ships, etc. are generally combined with galvanized and anti-corrosion coatings when they leave the factory. After a period of use, especially in harsh environments such as deserts, salt lakes, and severe pollution in my country, the protective layer will inevitably be damaged. , but it is inconvenient to carry out galvanizing operation again. The most effective way is to apply anti-corrosion coating again. Commonly used anti-corrosion topcoats mainly include ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/61
CPCC09D163/00C09D5/18C09D7/61C08L2201/08C08L2205/035C08L2205/025C08L63/00C08L89/00C08L75/04C08K9/00C08K9/04C08K3/346
Inventor 王占庭王辉徐祖猛
Owner 安徽康瑞高科新材料技术工程有限公司