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Aqueous high-performance monocomponent primer-topcoat anti-corrosion coating

A high-performance technology for anti-corrosion coatings, applied in anti-corrosion coatings, coatings, etc., can solve the problems of poor weather resistance and salt spray resistance, and achieve the effects of low VOC content, fast drying, and excellent salt spray resistance

Active Publication Date: 2012-11-28
中山大桥化工企业集团中山智亨实业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main materials of one-component anticorrosive coatings on the market are mostly water-based alkyd, water-based epoxy ester and water-based acrylic resin, but the salt spray resistance of water-based alkyd and water-based epoxy ester can only reach about 240h, and the weather resistance Generally poor; while water-based acrylic has better weather resistance, but poor salt spray resistance
For railway locomotives, containers and other fields that have high requirements on salt spray resistance and weather resistance, there is currently no suitable water-based one-component product that can meet the requirements

Method used

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  • Aqueous high-performance monocomponent primer-topcoat anti-corrosion coating

Examples

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Effect test

preparation example Construction

[0035] The preparation method of the above-mentioned water-based high-performance single-component bottom-surface-integrated anticorrosion coating comprises the following steps:

[0036] 1) Mix demineralized water, film-forming additives, anti-flash rust agents, thickening and anti-settling agents, and auxiliary additives, and stir for 5-10 minutes at a speed of 400-600 rpm to obtain mixture 1;

[0037] 2) Add coloring pigments, anti-rust pigments and fillers to mixture 1, stir for 20-30 min, and rotate at 800-1200 rpm to obtain mixture 2;

[0038] 3) Grind the mixture 2 with a sand mill, ball mill or three-roller until the fineness is less than 40 μm, then add water-based modified acrylic emulsion, stir for 10 minutes at a speed of 600-800 rpm, and use a 100-mesh copper mesh or nylon mesh Filter to get the finished product.

Embodiment 1

[0042] A water-based high-performance single-component bottom-surface-in-one anti-corrosion coating, which contains the following components in parts by weight: 40 parts of water-based modified acrylic emulsion (Dow HG-54C emulsion), 15 parts of titanium dioxide, 3 parts of iron oxide black, phosphoric acid 5 parts of zinc, 10 parts of precipitated barium sulfate, 5 parts of 1250 mesh talc powder, 1 part of ethylene glycol monobutyl ether, 2 parts of Texanol alcohol ester, 0.2 part of thickening and anti-sedimentation agent (Bentone LT), 16.5 parts of demineralized water (distilled water) 0.5 part of anti-flash rust agent (Raybo 60), 0.5 part of wetting agent, 0.3 part of defoamer, 0.5 part of dispersant, 0.1 part of antifungal agent, 0.1 part of preservative, 0.3 part of 25% ammonia water.

Embodiment 2

[0044] A water-based high-performance single-component bottom-surface-in-one anti-corrosion coating, which contains the following components by weight: 50 parts of water-based modified acrylic emulsion (Dow HG-54C emulsion), 15 parts of iron oxide red, and 5 parts of aluminum tripolyphosphate , 8 parts of precipitated barium sulfate, 1 part of ethylene glycol monobutyl ether, 2 parts of Texanol alcohol ester, 0.2 parts of thickening and anti-settling agent (Bentone LT), 16.5 parts of demineralized water (distilled water), 0.5 parts of anti-flash rust agent (FA179) 0.5 part of wetting agent, 0.3 part of defoamer, 0.5 part of dispersant, 0.1 part of antifungal agent, 0.1 part of preservative, and 0.3 part of diethanolamine.

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PUM

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Abstract

The invention discloses an aqueous high-performance monocomponent primer-topcoat anti-corrosion coating, comprising aqueous modified acrylic acid emulsion, coloring pigment, antirust pigment, filling material, film forming auxiliary agent, thickening anti-settling agent, softened water, anti-flash rust agent, and auxiliary additive. The coating disclosed herein has excellent salt mist resistance, can resist salt mist for more than 1000h and resist weather for more than 200h, and has the characteristics of rapid drying, low content of VOC, no environmental pollution, and no harm to constructers' health. The coating disclosed therein is convenient for using, can be applied in high pressure airless spraying and ordinary air spraying, the thickness of single coating wet film can reach 200 mum without sagging or cracking, and the coating disclosed herein is widely suitable for anti-corrosion protection of locomotive, container, automobile, ship, bridge, iron tower, storage tank, pipeline and other steel structures.

Description

technical field [0001] The invention relates to a water-based paint, in particular to a water-based high-performance single-component bottom-surface-integrated anti-corrosion paint used for corrosion protection of steel structures such as locomotives, containers, and bridges. Background technique [0002] Environmental protection, health and safety green technology and green products are the development trend of the world today, and are also the requirements for efficient and rational use of limited natural resources and sustainable economic development. So far, scientists in the field of coatings have created a series of new coatings and coating technology systems, such as powder coatings, radiation-cured coatings, water-based coatings, high-solid coatings and solvent-free coatings. Water-based coatings are non-flammable, non-toxic, and tasteless. They do not require special construction equipment during construction, do not need to be heated and cured, the equipment is eas...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D5/08C09D7/02C09D7/12C09D7/45
Inventor 孙太荣周贤辉张玺
Owner 中山大桥化工企业集团中山智亨实业发展有限公司
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