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High-solid anti-rust and anti-corrosion coating

A rust and anti-corrosion, high-solid technology, applied in the field of coatings, can solve problems such as environmental hazards, unsatisfactory anti-corrosion performance, and inability to satisfy customers, and achieve 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 contains 45%-50% organic solvent in the coating, which is easy to cause harm to the environment, and the adhesion of the primer can only reach the second level, the anti-corrosion performance is not ideal, and cannot meet the needs of customers

Method used

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  • High-solid anti-rust and anti-corrosion coating

Examples

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preparation example Construction

[0061] The preparation method of above-mentioned high solid antirust anticorrosion paint, comprises the following steps:

[0062] In parts by weight, 18-22 parts of the first 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 and 0.1-0.2 parts of dispersed agent, stirred until the fineness reaches 35 microns, and discharged to obtain a mixture;

[0063] Weigh xylene, and under constant stirring, add 0.5-0.7 parts of modified bentonite, stir evenly, add ethanol, and carry out ball milling with the mixture, and pour into the mixing tank after the ball milling is completed;

[0064] Add 18-24 parts of the second epoxy resin into the diluent, then add 0.2-0.4 parts of nano-silica under stirring, pour into the mixing tank after stirring; when the powder reaches a rotational viscosity of 4000 centipoise , discharging, to obtain component A;

[0065] Weigh 56-62 parts of the first amine curing agent, add 20...

Embodiment 1

[0069] A kind of high-solid antirust anticorrosion paint, comprising A component and B component that the weight ratio is 5:1, by weight, A component comprises:

[0070] 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 R972 (nano silica), 0.5 parts of 881-B (modified bentonite), 0.2 parts of additives and 12 parts of diluent;

[0071] Component B includes:

[0072] Hexamethylenediamine (first amine curing agent) 56 parts, 651 polyamide (second amine curing agent) 12 parts, ethanol 20 parts.

[0073] The preparation method of above-mentioned high solid antirust anticorrosion paint, comprises the following steps:

[0074] Stir E44 resin, magnet powder, iron oxide red, zinc phosphate, zinc powder, and dispersant until the fineness reaches 35 microns, and discharge to o...

Embodiment 2

[0080] A kind of high-solid antirust anticorrosion paint, comprising A component and B component that the weight ratio is 5:1, by weight, A component comprises:

[0081] 22 parts of E44 resin (first epoxy resin), 24 parts of E20 resin (second epoxy resin), 15 parts of magnet powder, 10 parts of iron oxide red, 6 parts of zinc phosphate, 6 parts of zinc powder, 0.2 parts of dispersant, 0.4 parts of R972 (nano silica), 0.7 parts of 881-B (modified bentonite), 0.3 parts of additives and 15 parts of diluent;

[0082] Component B includes:

[0083] Hexamethylenediamine (first amine curing agent) 62 parts, 651 polyamide (second amine curing agent) 18 parts, ethanol 30 parts.

[0084] The preparation method of above-mentioned high solid antirust anticorrosion paint, comprises the following steps:

[0085] Stir E44 resin, magnet powder, iron oxide red, zinc phosphate, zinc powder, and dispersant until the fineness reaches 35 microns, and discharge to obtain a mixture;

[0086] Weig...

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Abstract

The invention discloses a high-solid anti-rust and anti-corrosion 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, 0.5-0.7 part of modified bentonite, 0.2-0.4 part of nano-silicon dioxide, 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 high-solid anti-rust and anti-corrosion 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 high-solid antirust and anticorrosion coatings and a preparation method thereof. Background technique [0002] In high-temperature and high-humidity areas, when the air is not good, the air often contains carbon dioxide, sulfur dioxide, etc., and rain can easily cause corrosion of metal parts. Therefore, high-solid anti-rust and anti-corrosion 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 contains 45%-50% organic solvent in the coating, which is easy to cause harm to the environment, an...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D5/10C09D7/12
CPCC09D163/00C08K2201/011C08L2205/025C09D5/106C09D7/61C08L63/00C08K2003/2272C08K2003/328C08K2003/0893C08K3/346C08K3/36
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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