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Graphene anticorrosive coating and preparation method thereof

An anti-corrosion coating and graphene technology, applied in the field of coatings, can solve the problems of unsatisfactory corrosion protection of metal substrates, unfavorable social and economic sustainable development, consumption of non-renewable resources, etc., to reduce dust pollution, reduce viscosity, and reduce VOC. Effect

Inactive Publication Date: 2019-02-19
明德润和新材料(珠海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For anti-corrosion coatings, traditional protective coatings are limited by their own material properties and processes, and their corrosion protection effect on metal substrates is often not ideal. The cost of individual outstanding performance is high, which reduces the cost performance of coatings. Because it contains heavy metals or toxic substances such as lead, zinc or chromate, there is a certain risk of environmental pollution, and it also consumes a large amount of non-renewable resources, which is not conducive to the sustainable development of social economy

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

Examples

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Effect test

Embodiment 1

[0036] A kind of graphene anticorrosion coating, comprises the component of following percentage by weight: bisphenol A type epoxy resin 15%, polyamide curing agent 3%, cashew nut shell modified phenalkamine curing agent 2%, mica sheet 5%, precipitated sulfuric acid Barium 4%, titanium dioxide 4%, acrylate leveling agent 0.3%, organic acid anticorrosion additive 0.2%, graphene 1%, cardanol modified glycidyl ether 10%, cardanol modified ester resin 10% %, cardanol modified alcohol ether resin 5%, epoxy modified coupling agent UM-50 30.2%, amino modified organic acid coupling agent UM-60 30.1%, zinc powder 40% and polyvinylpyrrolidone 0.1%, propylene glycol Methyl ether acetate 0.1%.

[0037] The preparation method of graphene anticorrosion coating, comprises the following steps:

[0038] 1) take each component respectively according to weight percentage;

[0039] 2) Ultrasonic disperse graphene at 200-500W for 20-60min, then add active diluent (cardanol modified glycidyl ethe...

Embodiment 2

[0043] A kind of graphene anticorrosion coating, comprises the component of following percentage by weight: bisphenol A type epoxy resin 15%, polyamide curing agent 5%, mica sheet 12.5%, acrylate leveling agent 0.5%, graphene 1.5% , 10% phenol-modified glycidyl ether, 15% cardanol-modified ester resin, 0.3% epoxy-modified coupling agent, 40% zinc powder, 0.1% polyvinylpyrrolidone and 0.1% propylene glycol methyl ether acetate.

[0044] The preparation method of graphene anticorrosion coating is identical with the preparation method of the graphene anticorrosion coating of embodiment 1.

Embodiment 3

[0046] A kind of graphene anticorrosion coating, comprises the component of following percentage by weight: bisphenol A type epoxy resin 15%, polyamide curing agent 3%, cashew nut shell modified phenalkamine curing agent 2%, mica sheet 5%, precipitated sulfuric acid 7% barium, 0.5% organic acid anticorrosion additives, 2% graphene, 15% phenol modified glycidyl ether, 10% cardanol modified alcohol ether resin, epoxy modified coupling agent UM-50 30.2%, Amino modified organic acid coupling agent UM-603 0.1%, zinc powder 40%, polyvinylpyrrolidone 0.2%.

[0047] The preparation method of graphene anticorrosion coating is identical with the preparation method of the graphene anticorrosion coating of embodiment 1.

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Abstract

Graphene anticorrosive coating is prepared from, by weight, 5%-15% of epoxy resin, 1.6-6.6% of a curing agent, 10-40% of filler, 0.2-1% of auxiliary agents, 0.2-3% of graphene, 20-40% of a reactive diluent, 0.1-5% of a silane coupling agent, 10-50% of zinc powder and 0.15-2% of a dispersing agent. By adoption of 1% of graphene for replacing 60% of zinc powder, zinc powder consumption is sharply decreased, dust pollution in construction is reduced, and neutral salt mist resistance is improved. By the reactive diluent for replacing an existing common volatile organic solvent, graphene cane scattered effectively to form the solvent-free graphene anticorrosive coating, and low VOC content, environmental friendliness and healthiness are realized.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a graphene anti-corrosion coating and a preparation method thereof. Background technique [0002] The extensive and unique properties of graphene demonstrate its great potential in the field of metal material corrosion protection. First of all, the stable sp2 hybrid structure of graphene enables it to form a physical barrier between the metal and the active medium to prevent diffusion and penetration; secondly, graphene has good thermal and chemical stability, whether it is at high temperature It can be kept stable even in corrosive or oxidizing gas and liquid environments under high temperature conditions (up to 1500°C). In addition, the good electrical and thermal conductivity of graphene provides favorable conditions for the environment in which metals serve. [0003] For anti-corrosion coatings, traditional protective coatings are limited by their own material properties and process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/61C09D7/63C09D7/65
CPCC08K2003/2241C08K2003/3045C09D5/106C09D7/61C09D7/63C09D7/65C09D163/00C08L39/06C08K13/02C08K3/042C08K3/22C08K3/30
Inventor 周磊吴钦文秦晓娟周佳林昭宁
Owner 明德润和新材料(珠海)有限公司
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