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Preparation method for graphene modified anticorrosive paint

A graphene modification and anti-corrosion coating technology, applied in anti-corrosion coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of low barrier property, short service life, poor weather resistance, etc., to overcome poor weather resistance and extend protection. Time, chemical resistance and strong corrosive effect

Inactive Publication Date: 2016-07-20
DEYANG CARBONENE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art, and to provide a preparation method of graphene-modified anti-corrosion coatings. The present invention increases the path for the corrosive medium to reach the protective substrate, thereby prolonging the protection time of the coating on the substrate , to achieve the purpose of long-term anti-corrosion, and overcome the defects of existing coatings such as poor weather resistance, low barrier property and short service life

Method used

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  • Preparation method for graphene modified anticorrosive paint
  • Preparation method for graphene modified anticorrosive paint
  • Preparation method for graphene modified anticorrosive paint

Examples

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Effect test

Embodiment 1

[0030] A kind of preparation method of graphene modified anticorrosion paint, comprises the following steps:

[0031] (1) Preparation of graphene-resin composite slurry

[0032] Add the resin to the solvent in proportion to dissolve, and after uniform dissolution, add stabilizer and graphene powder to the resin in proportion. The graphene powder should be pre-dispersed before adding. The specific treatment process is: take another Solvent and put the graphene powder in the solvent, the mass ratio of graphene powder and solvent is 1:250-300, and then use ultrasonic wave to disperse for 20-40min. Remove the solvent with a suction filter to obtain wet graphene, then add the lubricated graphene to the resin, and then mix the stabilizer, graphene and resin evenly by stirring. After mixing evenly, use the dispersion process for 0.5-1.5h , and the graphene-resin composite slurry is obtained after the treatment is completed. Wherein, the mass ratio of resin to solvent is 50-70:30-50...

Embodiment 2

[0041] A kind of preparation method of graphene modified anticorrosion paint, comprises the following steps:

[0042] (1) Preparation of graphene-resin composite slurry

[0043] Add epoxy resin to absolute ethanol in proportion, and use stirring to dissolve the epoxy resin evenly to reduce the viscosity of the epoxy resin. The mass ratio of epoxy resin to absolute ethanol is 70:30, and dissolve evenly Finally, first add polyvinylpyrrolidone to the epoxy resin in proportion and stir and mix evenly, the mass ratio of epoxy resin to polyvinylpyrrolidone is 100:1, then add graphene powder in proportion and stir to mix evenly, epoxy resin and polyvinylpyrrolidone The mass ratio of the graphene powder is 98.8:1.2. After stirring and mixing evenly, the shear emulsification dispersion process is used for dispersing for 0.5h. After the treatment is completed, the graphene-resin composite slurry is obtained. Among them, the graphene powder should be pre-dispersed before being added. Th...

Embodiment 3

[0053] A kind of preparation method of graphene modified anticorrosion paint, comprises the following steps:

[0054] (1) Preparation of graphene-resin composite slurry

[0055] Add the alkyd resin to xylene in proportion, and use stirring to dissolve the alkyd resin evenly to reduce the viscosity of the alkyd resin. The mass ratio of alkyd resin to xylene is 65:35. After uniform dissolution, First add silane coupling agent to alkyd resin in proportion and stir and mix evenly. The mass ratio of alkyd resin to silane coupling agent is 100:1.5. Then add graphene powder in proportion and mix evenly. Alkyd resin and silane coupling agent are mixed evenly. The mass ratio of the graphene powder is 98:2. After stirring and mixing evenly, the high-speed homogeneous stirring and dispersing process is used for dispersing for 1.5 hours. After the treatment is completed, the graphene-resin composite slurry is obtained. Among them, the graphene powder should be pre-dispersed before being ...

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Abstract

The invention discloses a preparation method for graphene modified anticorrosive paint. The preparation method comprises the following steps: (1) adding resin into a solvent to dissolve, adding a stabilizer and graphene powder into the resin after the resin is dissolved, uniformly mixing, and treating by adopting a dispersing process, thereby obtaining graphene-resin composite slurry; (2) additionally getting resin to mix with the solvent and a filler to obtain a mixture, adding a dispersing agent into the uniformly-mixed mixture, and treating by adopting a dispersing process, thereby obtaining color paste, wherein the type of the additionally-got resin is the same as that of the resin in the step (1); and (3) adding the color paste prepared in the step (2) into the graphene-resin composite slurry prepared in the step (1), and filtering after grinding and dispersing, thereby obtaining the finished paint. According to the preparation method, a path of adding a corrosive medium to protected matrix is added, so that the protection time of a coating on the matrix is prolonged, and the purpose of long-acting corrosion prevention is achieved; and the defects of poor weather resistance, low barrier property, short service life and the like of the current paint are overcome.

Description

technical field [0001] The invention relates to the field of anti-corrosion coatings, in particular to a preparation method of graphene-modified anti-corrosion coatings. Background technique [0002] There are many types of existing anti-corrosion coatings, incomplete statistics, there are more than 1,000 types of anti-corrosion coatings in my country, the traditional classification by resin is epoxy, epoxy asphalt, asphalt, chlorinated rubber, chlorosulfonated polyethylene, polyvinyl chloride , perchlorethylene, urushiol resin, ethyl silicate, high chlorinated polyethylene, polyurethane, polyurethane bitumen, phenolic, alkyd paint, etc. Epoxy resin anti-corrosion coatings are the most important type of heavy-duty anti-corrosion coatings. Epoxy resin heavy-duty anti-corrosion coatings mainly include: epoxy zinc-rich anti-corrosion paint, epoxy coal tar pitch paint, epoxy glass flake paint, powder epoxy anti-corrosion paint and water-emulsion epoxy anti-corrosion paint. Exis...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D167/08C09D133/00C09D183/06C09D161/06C09D163/10C09D5/08C09D7/12
CPCC09D163/00C08K3/04C08K3/34C08K5/54C09D5/08C09D7/61C09D7/63C09D7/65C09D133/00C09D161/06C09D163/10C09D167/08C09D183/06C08L39/06C08K2003/2241C08K2003/2272
Inventor 赵景浩简璐姚林高华
Owner DEYANG CARBONENE TECH
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