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Rust-proof coating

An anti-rust coating and epoxy resin technology, applied in the field of coatings, can solve the problems of unsatisfactory anti-rust performance, can not meet the needs of customers with high anti-corrosion performance, etc., and achieve the effect of good thixotropic performance

Inactive Publication Date: 2015-03-25
湖南中汉高分子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned epoxy iron red anti-corrosion primer has not very satisfactory anti-rust performance and cannot meet the needs of customers for high anti-corrosion performance

Method used

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preparation example Construction

[0059] The preparation method of above-mentioned antirust paint, comprises the following steps:

[0060] In parts by weight, 18-22 parts of the first epoxy resin, 10-15 parts of magnet powder, 5-8 parts of iron oxide red, 3-6 parts of zinc phosphate, 3-4 parts of zinc powder and 0.1-0.2 parts are dispersed agent, ball milling to disperse until the fineness reaches 35 microns, discharge to obtain a mixture, and pour the mixture into a slurry mixing tank;

[0061] Add 12-15 parts of diluent and 18-24 parts of second epoxy resin into the mixing tank, stir evenly, and when the powder degree reaches a rotational viscosity of 4000 centipoise, discharge to obtain component A;

[0062] Weigh 56-62 parts of the first amine curing agent, add 20-30 parts of ethanol and 12-18 parts of the second amine curing agent under stirring, and stir evenly to obtain component B;

[0063] The component A and the component B are mixed according to a weight ratio of 5:1 to obtain an antirust paint.

Embodiment 1

[0066] A kind of antirust paint, comprising A component and B component that weight ratio is 5:1, by weight, A component comprises:

[0067] 18 parts of E44 resin (first epoxy resin), 18 parts of E20 resin (second epoxy resin) with a mass fraction of 60%, 10 parts of magnet powder, 2 parts of iron oxide red, 3 parts of zinc phosphate, and 1 part of zinc powder , 0.1 parts of dispersant, 0.2 parts of auxiliary agent and 12 parts of diluent;

[0068] Component B includes:

[0069] Hexamethylenediamine (first amine curing agent) 56 parts, 651 polyamide (second amine curing agent) 12 parts, ethanol 20 parts.

[0070] The preparation method of above-mentioned antirust paint, comprises the following steps:

[0071] Stir 18 parts of E44 resin, 10 parts of magnet powder, 5 parts of red iron oxide, 3 parts of zinc phosphate, 3 parts of zinc powder and 0.1 part of dispersant until the fineness reaches 35 microns, and discharge the mixture to obtain the mixture and pour it into the sea...

Embodiment 2

[0076] A kind of antirust paint, comprising A component and B component that weight ratio is 5:1, by weight, A component comprises:

[0077] E44 resin (first epoxy resin) 18 parts E20 resin (second epoxy resin) 24 parts, magnet powder 15 parts, iron oxide red 10 parts, zinc phosphate 6 parts, zinc powder 6 parts, dispersant 0.2 parts, auxiliary 0.3 parts of agent and 15 parts of diluent;

[0078] Component B includes:

[0079] Hexamethylenediamine (first amine curing agent) 62 parts, 651 polyamide (second amine curing agent) 18 parts, ethanol 30 parts.

[0080] The preparation method of above-mentioned antirust paint, comprises the following steps:

[0081] Stir the E44 resin, magnet powder, red iron oxide, zinc phosphate, zinc powder and dispersant until the fineness reaches 35 microns, discharge to obtain the mixture, and pour it into the mixing tank;

[0082] Add additives, E20 resin and diluent to the paste, stir evenly, and when the powder degree reaches a rotational v...

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Abstract

The invention discloses a rust-proof coating. The coating comprises a component A and a component B in the weight ratio of 5: 1, wherein the component A comprises the following components in parts by weight: 18-22 parts of first epoxy resin, 18-24 parts of second epoxy resin, 10-15 parts of magnet powder, 2-10 parts of iron oxide red, 3-6 parts of zinc phosphate, 1-6 parts of zinc powder, 0.1-0.2 part of a dispersant, 0.2-0.3 part of an assistant and 12-15 parts of a diluent; and the component B comprises the following components in parts by weight: 56-62 parts of a first amine curing agent, 12-18 parts of a second amine curing agent and 20-30 parts of ethanol. The rust-proof coating adopts two different types of epoxy resin and curing agents to form a film by crosslinking and curing. The film-forming mechanism is that active H<+> is contained in the amine curing agents and can react with epoxy groups in epoxy resin at normal temperature and form a reticular structure by crosslinking; and the reticular structure is dense and hard, good in anti-corrosion performance, strong in adhesion and outstanding in chemical resistance.

Description

technical field [0001] The invention relates to coatings, in particular to antirust coatings and a preparation method thereof. Background technique [0002] In high-temperature and high-humidity areas, when the air quality is poor, the air often contains carbon dioxide, sulfur dioxide, etc., and rain can easily cause corrosion of metal parts. Therefore, anti-rust coatings are often coated on metal parts to protect metal parts from corrosion. [0003] Generally, metal parts are protected with anti-corrosion epoxy iron red primer, which includes modified aliphatic amine epoxy curing agent, modified epoxy resin, epoxy resin, coating additives, iron red Anti-corrosion pigments, heavy-duty anti-corrosion pigments and fillers, adhesion promoters, epoxy diluents. [0004] The above-mentioned epoxy iron red anti-corrosion primer has not very satisfactory anti-rust performance, and cannot meet the needs of customers for high anti-corrosion performance. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/10
CPCC09D163/00C08K2201/011C08L2205/025C08L2205/035C09D5/084C09D5/106C09D7/61C09D7/62C09D7/65C08L63/00C08K13/02C08K2003/0893C08K3/10C08K2003/2272C08K2003/328C08L29/14C08K13/06C08K3/346C08K3/36
Inventor 吴锐彭俊帮陈永杰
Owner 湖南中汉高分子材料科技有限公司
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