Graphene anticorrosive coating and preparation method thereof

An anti-corrosion coating, graphene technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor anti-corrosion effect

Inactive Publication Date: 2020-10-27
SHAANXI BANGXI CHEM
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a graphene anti-corrosion coating to solve the problem of poor anti-corrosion effect of existing anti-corrosion coatings

Method used

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  • Graphene anticorrosive coating and preparation method thereof
  • Graphene anticorrosive coating and preparation method thereof
  • Graphene anticorrosive coating and preparation method thereof

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preparation example Construction

[0028] The preparation method of the above-mentioned graphene anticorrosive coating includes the following steps:

[0029] S1. Add graphene powder to the hydrochloric acid solution and place it in an ultrasonic disperser for ultrasonic dispersion for 1-2 hours. After the dispersion is uniform, add aniline, stir and mix well at 0-5°C to obtain a mixed solution; dissolve the oxidant Into the hydrochloric acid solution, and add the oxidant hydrochloric acid solution to the mixed solution, stir and mix evenly at 0-5°C, then add zinc powder, react for 3-5 hours, centrifuge and wash, to obtain the graphene / zinc / polyaniline composite material ;

[0030] S2. After mixing polyurethane, filler, dispersant, defoaming agent and part of deionized water, add leveling agent and stir evenly to obtain mixed solution A;

[0031] S3. Heat the modified polyamide curing agent in an oven to 90°C, keep it for 10-30 minutes, and then add the remaining deionized water, stir and mix uniformly, to obtain a mi...

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Abstract

The invention discloses a graphene anticorrosive coating, which is prepared from the following components in percentage by mass: 40 to 60 percent of polyurethane, 0.1 to 0.5 percent of graphene powder, 1 to 3 percent of aniline, 10 to 20 percent of zinc powder, 5 to 10 percent of a filler, 0.5 to 2 percent of a dispersing agent, 5 to 10 percent of a curing agent, 0.5 to 2 percent of a leveling agent, 0.5 to 2 percent of a defoamer and 10 to 20 percent of deionized water, wherein the zinc powder is flake zinc powder, the particle size of the zinc powder is 300-500 meshes, and the particle sizeof the graphene powder is 300 meshes. The invention also discloses a preparation method of the graphene anticorrosive coating. By adopting the graphene anticorrosive coating and the preparation methodthereof, the problem of poor anticorrosive effect of an existing anticorrosive coating can be solved.

Description

Technical field [0001] The invention belongs to the technical field of industrial anticorrosive coatings, and in particular relates to a graphene anticorrosive coating and a preparation method thereof. Background technique [0002] With the rapid development of the country and the rapid construction of cities and industries, a large number of metal materials are used in infrastructure, energy, chemical, construction, transportation and other fields. The surface of metal materials is prone to corrosion. Metal corrosion refers to the chemical and electrochemical reaction between the surface of the metal material and the environment, which reduces the performance of the material, and metal corrosion can cause huge losses. The commonly used metal anti-corrosion measure is to spray a layer of anti-corrosion coating on the surface of the metal material to isolate the metal surface from the air, so as to achieve the anti-corrosion effect. Most of the existing anti-corrosion coatings ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/10C09D5/08C09D7/61
CPCC08K2003/0893C08K2003/2227C08K2003/265C08K2201/001C08K2201/011C09D5/08C09D5/106C09D175/04C09D7/61C08L79/02C08K3/08C08K3/042C08K3/34C08K3/22C08K7/00C08K3/26C08K13/04
Inventor 王毅超张永欣付勇高来闯刘牧
Owner SHAANXI BANGXI CHEM
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