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Aqueous organosilicon modified acrylic acid primer-topcoat vehicle axle coating and preparation method thereof

A technology of silicone and acrylic, applied in antifouling/underwater coatings, anti-corrosion coatings, fire-resistant coatings, etc., to achieve the effects of increasing cross-linking degree, improving adhesion, and high hydrophobicity

Inactive Publication Date: 2017-10-20
广东鑫皇冠新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a kind of vehicle axle coating that water-based organosilicon modified acrylic bottom and surface are integrated, and it mainly carried out organosilicon and epoxy grafting modification to water-based acrylic emulsion, solved the water resistance of vehicle axle coating, resistance Chemical and weather resistance issues, with excellent anti-corrosion properties

Method used

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  • Aqueous organosilicon modified acrylic acid primer-topcoat vehicle axle coating and preparation method thereof
  • Aqueous organosilicon modified acrylic acid primer-topcoat vehicle axle coating and preparation method thereof
  • Aqueous organosilicon modified acrylic acid primer-topcoat vehicle axle coating and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1-A kind of preparation method of water-based organosilicon-modified acrylic acid bottom and surface integrated vehicle axle paint

[0037] 1. Silicone modification of acrylic emulsion:

[0038] (1) First, 5 parts of silane coupling agent and 5 parts of deionized water are pre-mixed to make a silane coupling agent mixture;

[0039] (2) Add 100 parts of acrylic emulsion into a stirred reaction kettle with a water bath, set the temperature of the water bath at 40-45°C, and slowly add the silane coupling agent mixture in step (1) to 600- Keep stirring at a speed of 800 rpm for 24 hours to obtain a water-based silicone-modified acrylic emulsion.

[0040] 2. Prepare water-based color paste:

[0041] (1) According to the parts by weight, 35 parts of deionized water are thrown into the container, and 3 parts of ammonia neutralizer, 10 parts of wetting and dispersing agent and 1 part of defoamer are sequentially added while stirring at a speed of 600-800rpm, After...

Embodiment 2

[0052] Embodiment 2-A preparation method of a water-based organosilicon-modified acrylic acid bottom and surface-integrated axle paint, changing the proportion of the chemical components in the water-based color paste, A component and B component, and each raw material is in parts by weight The numbers are as follows:

[0053] Water-based color paste: 25 parts of deionized water, 3 parts of ammonia neutralizer, 10 parts of wetting and dispersing agent, 1 part of defoamer, 20 parts of coloring pigment, 3 parts of special organic corrosion inhibitor, new silicon dioxide anti-rust pigment 12 parts, 10 parts of mica powder, 15 parts of barium sulfate filler and 1 part of anti-sedimentation additive;

[0054] Component A: 15 parts of deionized water, 4 parts of dipropylene glycol methyl ether solvent, 1 part of wetting agent, 0.5 parts of leveling agent, 15 parts of polyamide resin, 60 parts of water-based color paste, 1 part of defoaming aid, water-based 1.5 parts of low-shear th...

Embodiment 3

[0057] Example 3 - A method for preparing a water-based silicone-modified acrylic bottom and surface-in-one axle paint, changing the proportion of the water-based color paste, component A and component B, each raw material in parts by weight The numbers are as follows:

[0058] Water-based color paste: 26 parts of deionized water, 4 parts of ammonia neutralizer, 11 parts of wetting and dispersing agent, 2 parts of defoaming agent, 11 parts of coloring pigment, 4 parts of special organic corrosion inhibitor, new silicon dioxide anti-rust pigment 13 parts, 11 parts of mica powder, 16 parts of barium sulfate filler and 2 parts of anti-sedimentation additive;

[0059] Component A: 18 parts of deionized water, 3 parts of dipropylene glycol methyl ether solvent, 1 part of wetting agent, 0.5 parts of leveling agent, 17 parts of polyamide resin, 57 parts of water-based color paste, 0.5 parts of defoaming aid, water-based 1 part of low-shear thickening aid, 1 part of water-based mediu...

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Abstract

The invention relates to an aqueous organosilicon modified acrylic acid primer-topcoat vehicle axle coating and a preparation method thereof. The vehicle axle coating is prepared through mixing a component A with a component B according to a ratio of 1:1; the component A comprises, by weight, 15-20 parts of deionized water, 3-5 parts of a dipropylene glycol methyl ether solvent, 0.5-1 part of a wetting agent, 0.5-1 part of a leveling agent, 15-20 parts of polyamide resin, 50-60 parts of an aqueous color paste, 0.5-1 part of an antifoaming assistant, 1-2 parts of an aqueous low-shear thickening assistant, 1-2 parts of an aqueous middle-shear thickening assistant and 0.5-1 part of an aqueous high-shear thickening assistant; and the component B comprises, by weight, 80-85 parts of an aqueous organosilicon modified acrylic emulsion, 3-5 parts of Texanol, 3-5 parts of an adhesion promoter, 5-10 parts of deionized water and 0.5-1 part of an antifoaming agent. The aqueous acrylic emulsion undergoes organosilicon and epoxy grafting modification, so the aqueous organosilicon modified acrylic acid primer-topcoat vehicle axle coating has improved resistance to water, chemicals and weather, and has excellent corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of water-based anti-corrosion coatings, in particular to a water-based silicone-modified acrylic bottom-surface-integrated axle coating and a preparation method thereof. Background technique [0002] At present, domestic axle paints are usually solvent-based. The system is two-component epoxy antirust paint for the primer and two-component acrylic paint for the top coat. However, a large amount of toxic and harmful volatile solvents are used in production and construction applications, resulting in harm to human health and serious air pollution. In the prior art, in order to reduce or eliminate volatile organic compounds (VOC) in coatings, many companies have carried out research and development of water-based axle coatings. Difficult to meet the standard requirements and difficult construction defects, so it is difficult to promote the application of water-based axle coatings. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D177/00C09D5/08C09D5/16C09D7/12C08F8/42C08F20/00
CPCC09D133/00C08F8/42C08K2003/3045C08L2201/08C08L2205/05C08L2312/00C09D5/08C09D5/084C09D5/1662C09D5/1687C09D5/18C08L77/00C08K13/02C08K3/36C08K3/34C08K3/30C08F20/00
Inventor 梁家强汪洋陆卫尧
Owner 广东鑫皇冠新材料有限公司
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