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Organic-inorganic nano hybrid waterborne high-temperature-resistant anticorrosive coating and preparation method thereof

A technology of inorganic nano and anti-corrosion coatings, which is applied in anti-corrosion coatings, fire-proof coatings, polyurea/polyurethane coatings, etc., and can solve the problems of high-temperature resistance and insufficient anti-corrosion performance of coatings

Inactive Publication Date: 2020-10-30
绵阳麦思威尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides an organic-inorganic nano-hybrid water-based high-temperature resistant anti-corrosion coating and a preparation method thereof, which can effectively solve the problems that the existing coatings are not resistant to high temperatures and have insufficient anti-corrosion performance

Method used

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  • Organic-inorganic nano hybrid waterborne high-temperature-resistant anticorrosive coating and preparation method thereof
  • Organic-inorganic nano hybrid waterborne high-temperature-resistant anticorrosive coating and preparation method thereof
  • Organic-inorganic nano hybrid waterborne high-temperature-resistant anticorrosive coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0049] An organic-inorganic nano-hybrid water-based high-temperature anti-corrosion coating, including A component and B component used together, wherein A component includes the following components by weight:

[0050] 25 parts of deionized water, 0.5 part of wetting and dispersing agent Dispers 757W, 0.05 part of defoamer BYK011, 5 parts of nano filler, 30 parts of calcium boride, 50 parts of organic-inorganic nano hybrid high temperature resistant emulsion, 0.1 part of ammonia water, Variable aid Hemings 2990.5 parts;

[0051] B component comprises the component of following parts by weight:

[0052] 60 parts of water-based isocyanate curing agent, and 20 parts of PMA.

[0053] Wherein, the preparation method of organic-inorganic nano hybrid high temperature resistant emulsion is:

[0054] (1) Preparation of modified nano-silica

[0055] a. Mix silane coupling agent KH570 and MMA at a ratio of 1:1, slowly drop into the silica powder stirred at room temperature at high spee...

Embodiment 2

[0073] An organic-inorganic nano-hybrid water-based high-temperature anti-corrosion coating, including A component and B component used together, wherein A component includes the following components by weight:

[0074] 15 parts of deionized water, 0.8 part of wetting and dispersing agent Dispers 757W, 0.1 part of defoamer BYK011, 20 parts of nano filler, 5 parts of boron carbide, 60 parts of organic-inorganic nano hybrid high temperature resistant emulsion, 0.2 part of ammonia water, rheology Auxiliary Hemings 2990.8 parts;

[0075] B component comprises the component of following parts by weight:

[0076] 80 parts of water-based isocyanate curing agent, and 40 parts of PGDA.

[0077] Wherein, the preparation method of organic-inorganic nano hybrid high temperature resistant emulsion is:

[0078] (1) Preparation of modified nano-silica

[0079] a. Mix the silane coupling agent KH570 and MMA at a ratio of 1:2, slowly drop into the silica powder stirred at room temperature a...

Embodiment 3

[0097] An organic-inorganic nano-hybrid water-based high-temperature anti-corrosion coating, including A component and B component used together, wherein A component includes the following components by weight:

[0098] 20 parts of deionized water, 0.6 part of wetting and dispersing agent Dispers 757W, 0.1 part of defoamer BYK011, 15 parts of nano filler, 40 parts of calcium boride, 55 parts of organic-inorganic nano hybrid high temperature resistant emulsion, 0.2 part of ammonia water, fluid Variable aid Hemings 2990.7 parts;

[0099] B component comprises the component of following parts by weight:

[0100] 60 parts of water-based isocyanate curing agent, and 20 parts of PMA.

[0101] Wherein, the preparation method of organic-inorganic nano hybrid high temperature resistant emulsion is:

[0102] (1) Preparation of modified nano-silica

[0103] a. Mix silane coupling agent KH570 and MMA at a ratio of 1:2, slowly drop into the silica powder stirred at room temperature at h...

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Abstract

The invention discloses an organic-inorganic nano hybrid waterborne high-temperature-resistant anticorrosive coating and a preparation method thereof. The coating comprises a component A and a component B in a weight ratio of (4-6): 1, wherein the component A is prepared from the following components in parts by weight: 35 to 60 parts of organic-inorganic nano hybrid high-temperature-resistant emulsion, 10 to 25 parts of deionized water, 0.5 to 1.2 parts of a coating additive and 30 to 40 parts of high-temperature-resistant powder; and the component B comprises the following components in parts by weight: 60-80 parts of a waterborne isocyanate curing agent and 20-40 parts of a cosolvent. The waterborne high-temperature-resistant anticorrosive coating prepared by the invention can continuously work for more than 800h at the high temperature of 800 DEG C, and meanwhile, the paint membrane has higher mechanical strength and corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of preparation of water-based anti-corrosion coatings, and in particular relates to an organic-inorganic nano-hybrid water-based high-temperature-resistant anti-corrosion coating and a preparation method thereof. Background technique [0002] With the development of cutting-edge technology in modern industry, commonly used metal materials such as alloy steel and heat-resistant steel will creep due to excessive temperature, or corrode and peel off too quickly due to the action of high-temperature air flow, and the service life will be shortened. In order to eliminate or delay This phenomenon occurs, and to improve the service life of the equipment, it is often used to coat the surface of the metal material with a high temperature resistant coating. Therefore, the application of high temperature resistant coatings continues to expand. [0003] High temperature resistant coatings can be divided into two catego...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D5/08C09D7/62
CPCC09D175/14C09D7/62C09D5/18C09D5/08C08K2201/011
Inventor 闫辉
Owner 绵阳麦思威尔科技有限公司
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