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Aqueous single-component organic zinc-rich coating and preparation method and application thereof

A one-component, zinc-rich technology, used in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve inconvenient construction, poor storage stability of one-component organic zinc-rich coatings, and early corrosion resistance of organic zinc-rich coatings Insufficient and other problems, to achieve the effect of good early corrosion resistance and good storage stability

Inactive Publication Date: 2019-03-19
GUANGZHOU JOINTAS CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to overcome the shortcomings of the water-based two-component organic zinc-rich coating described in the above-mentioned prior art, such as short pot life, inconvenient construction, poor storage stability of the single-component organic zinc-rich coating, and insufficient early corrosion resistance of the organic zinc-rich coating. , to provide a water-based one-component organic zinc-rich coating, the water-based one-component organic zinc-rich coating has good storage stability, convenient construction, and good early corrosion resistance

Method used

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  • Aqueous single-component organic zinc-rich coating and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0051] A water-based one-component organic zinc-rich coating, the components are as follows:

[0052] 15 parts of water-based one-component epoxy resin emulsion, 6 parts of propylene glycol methyl ether, 1 part of bentonite, 0.5 parts of Tech-6208 dispersant, 1 part of fumed silica, 80 parts of rare earth modified zinc powder, and 0.3 parts of silicone defoamer 2 parts, 2 parts of sulfur-containing high-efficiency corrosion inhibitor, 10 parts of water.

[0053] Preparation:

[0054] S1. Add 6 parts of propylene glycol methyl ether, 0.3 parts of wetting and dispersing agent, 1 part of bentonite, 0.3 parts of silicone defoamer, 1 part of fumed silica, some water, and stir at high speed (1500-2000r / min) in the tank 10-20 minutes;

[0055] S2. Continue to add 15 parts of water-based epoxy emulsion to the tank, stir at medium speed (1000-1200r / min) for 5-10 minutes, and mix well;

[0056] S3. Then add 80 parts of modified zinc powder, pass cooling water, and stir at high speed (1...

Embodiment 2

[0059] A water-based one-component organic zinc-rich coating, the components are as follows:

[0060] 10 parts of water-based one-component epoxy resin emulsion, 5 parts of propylene glycol methyl ether, 0.5 parts of bentonite, 0.5 parts of Tech-6208 dispersant, 0.5 parts of fumed silica, 70 parts of rare earth modified zinc powder, and 0.5 parts of silicone defoamer 1 part, 1 part of sulfur-containing high-efficiency corrosion inhibitor, 10 parts of water.

[0061] The steps of the preparation method are the same as in Example 1.

Embodiment 3

[0063] A water-based one-component organic zinc-rich coating, the components are as follows:

[0064] 20 parts of water-based one-component epoxy resin emulsion, 8 parts of propylene glycol methyl ether, 1.5 parts of bentonite, 0.8 parts of Tech-6208 dispersant, 1 part of fumed silica, 100 parts of rare earth modified zinc powder, and 0.1 parts of silicone defoamer parts, 0.5 parts of sulfur-containing high-efficiency corrosion inhibitor, and 10 parts of water.

[0065] The steps of the preparation method are the same as in Example 1.

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Abstract

The invention discloses an aqueous single-component organic zinc-rich coating and a preparation method and an application thereof. The aqueous single-component organic zinc-rich coating comprises 10-20 parts of aqueous resin, 70-100 parts of modified zinc powder, 0.5-1 part of fumed silica, 5-8 parts of co-solvent, 0.9- 2.5 parts of auxiliary agent and 0.5-2 parts of corrosion inhibitor; the modified zinc powder is corrosion-resistant modified zinc powder; the corrosion inhibitor is a compound solution of 2-benzothiazole thiosuccinic acid and molybdate. The aqueous single-component organic zinc-rich coating is successfully prepared by selecting the modified zinc powder and the sulfur-containing high-efficiency corrosion inhibitor in combination with other components; the prepared aqueous single-component organic zinc-rich coating has good storage stability, is convenient to construct and has good early corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of organic zinc-rich coatings, and more specifically, to a water-based one-component organic zinc-rich coating and its preparation method and application. Background technique [0002] In the field of heavy anti-corrosion, water-based two-component zinc-rich coatings have been widely used because of their excellent anti-corrosion performance. At present, the most commonly used water-based two-component zinc-rich coating is a two-component water-based epoxy zinc-rich coating. The two-component water-based epoxy zinc-rich coating usually includes liquid epoxy resin, zinc powder, dispersant, anti-settling agent A component composed of , solvent and other parts, and B component composed of water-based curing agent. Water-based two-component zinc-rich coatings need two components to be mixed during the construction process and can be applied quickly. After the pot life expires, the coating will fail. The applic...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10C09D7/61C09D7/63
CPCC08K2003/0893C09D5/106C09D7/61C09D7/63C09D163/00C08K9/10C08K3/08C08K3/24C08K5/47C08K3/36
Inventor 何畅张鸿
Owner GUANGZHOU JOINTAS CHEM
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