Graphene anticorrosive paint and preparation method thereof

An anti-corrosion coating and graphene technology, applied in the field of coatings, can solve problems such as the development of solvent-free anti-corrosion coatings without precedent, and achieve the effects of enhancing toughness, reducing shrinkage stress, and simple preparation methods

Inactive Publication Date: 2017-05-17
NINGBO MORSH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The research on the application of graphene in anti-corrosion coatings is still in its infancy. Some solvent-based graphene anti-corrosion coa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] The invention also provides a preparation method of the graphene anticorrosion coating. The preparation method comprises the following steps:

[0034] S1, mixing graphene, reactive diluent and first auxiliary agent to obtain graphene slurry, wherein the first auxiliary agent includes wetting agent, leveling agent, defoamer and anti-settling agent;

[0035] S2, mixing graphene slurry, epoxy resin, titanium dioxide, barium sulfate, zinc phosphate and the second auxiliary agent to obtain a prefabricated coating, wherein the second auxiliary agent includes an adhesion promoter, a drier, a thixotropic agent;

[0036] S3, mixing the prefabricated coating with a curing agent to obtain the graphene anti-corrosion coating.

[0037]In step S1, the graphene, the reactive diluent and the first auxiliary agent may be mixed and dispersed for 5 minutes to 100 minutes by a high-speed shearing machine at a speed of 1000 rad / min to 3000 rad / min.

[0038] In step S2, the components are...

Embodiment 1

[0042] A kind of graphene anticorrosion coating, is made up of following components according to mass percentage: 0.5 parts of graphene powder, 48 parts of bisphenol A epoxy resins, 7 parts of butyl glycidyl ethers, 12 parts of titanium dioxide, 14 parts of barium sulfate, 7 parts of zinc phosphate, 1.2 parts of defoamer, 2.3 parts of anti-settling agent, 8 parts of cashew oil modified phenalkamine curing agent. Wherein, the defoamer is a silicone defoamer, and the anti-settling agent is an amide wax.

[0043] The preparation method of this graphene anticorrosion coating is as follows:

[0044] (1) Preparation of graphene slurry: blend graphene, butyl glycidyl ether, and defoamer, and disperse for 60 minutes at a speed of 3000 rad / min with a high-speed shearing machine to obtain graphene slurry.

[0045] (2) Mix and stir the graphene slurry prepared in step (1) with epoxy resin, titanium dioxide, barium sulfate, zinc phosphate and the remaining additives in proportion, and gr...

Embodiment 2

[0048] A graphene anti-corrosion coating, which is composed of the following components in terms of mass percentage: 1.2 parts of graphene powder, 40 parts of bisphenol F epoxy resin, 10 parts of tert-butyl glycidyl ether, 8 parts of titanium dioxide, and 5 parts of barium sulfate , 15 parts of zinc phosphate, 1.8 parts of defoamer, 1 part of anti-settling agent, 1 part of wetting and dispersing agent, 17 parts of Mannich alkali curing agent. Among them, the defoaming agent is a silicone defoaming agent, the anti-settling agent is a hydrogenated castor oil derivative anti-settling agent, and the wetting and dispersing agent is a polyoxyethylene fatty alcohol ether wetting and dispersing agent.

[0049] The preparation method of this graphene anticorrosion coating is as follows:

[0050] (1) Preparation of graphene slurry: blend graphene with tert-butyl glycidyl ether, defoamer and wetting agent, and disperse for 60 minutes at a speed of 3000 rad / min with a high-speed shearing ...

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PUM

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Abstract

The invention provides a graphene anticorrosive paint. The graphene anticorrosive paint is composed of the following components in parts by mass: 0.01-5 parts of graphene, 25-70 parts of epoxy resin, 5-15 parts of reactive diluent, 5-30 parts of titanium white, 5-30 parts of barium sulfate, 5-30 parts of zinc phosphate, 3-10 parts of aid and 5-30 parts of curing agent. The invention also provides a preparation method of the graphene anticorrosive paint.

Description

technical field [0001] The invention relates to a coating, in particular to a solvent-free graphene anticorrosion coating and a preparation method thereof. Background technique [0002] Metal corrosion not only brings economic losses, but also is not conducive to the protection of natural resources and the environment, and sometimes even endangers personal safety. In order to prevent and slow down corrosion, many anti-corrosion methods have been developed, among which coating protection is the most convenient and economical. [0003] In order to improve the anti-corrosion performance, the more commonly used high-solid anti-corrosion system is to achieve long-term anti-corrosion through high film thickness. In the long-term anti-corrosion system, as an anti-rust primer, the thickness of the paint film is generally 80 μm to 100 μm. As a medium-resistant coating system, the film thickness is generally not less than 450 μm, which requires multiple coats of paint, and some pain...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/12
CPCC09D163/00C08L2205/03C09D5/08C09D7/61C09D7/65
Inventor 张羽高华吴欢赵守仁吴超吴伦周旭峰刘兆平茆玉宝
Owner NINGBO MORSH TECH
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