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Epoxy resin-oxidized graphene composite coating and application method thereof

A graphene composite and epoxy resin technology, which is applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve the problems of weakened protective effect and reduced service life of the substrate, so as to improve corrosion resistance, excellent thermal performance, The effect of excellent anti-corrosion performance

Inactive Publication Date: 2015-02-18
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the rapid development of modern industry, traditional anti-corrosion coatings can no longer meet the actual requirements of today's industrial applications, especially when the substrate is in a highly corrosive environment, its protective effect is greatly weakened, reducing the service life of the substrate

Method used

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  • Epoxy resin-oxidized graphene composite coating and application method thereof
  • Epoxy resin-oxidized graphene composite coating and application method thereof
  • Epoxy resin-oxidized graphene composite coating and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In this example, the substrate is exactly the same as that in Comparative Example 1.

[0044] An epoxy resin coating is prepared by coating the surface of the substrate with an epoxy resin coating.

[0045] Epoxy coatings consist of A and B components.

[0046]Component A is composed of 1g mixed solvent, 10g epoxy resin and a certain amount of graphene oxide modified by silane coupling agent. Wherein, the solvent is a mixed solvent formed by mixing xylene and n-butanol at a mass ratio of 7:3, and the mass of graphene oxide accounts for 0.25% of the mass of the epoxy resin E51.

[0047] Component B is 5g of modified isophorone diamine curing agent and 0.03g of BYK-028 defoamer.

[0048] The preparation method of the silane coupling agent modified graphene oxide is: add 20g of silane coupling agent KH560 to 72g of ethanol and 8g of deionized water, after stirring evenly, add 1g of graphene oxide, ultrasonic dispersion for 1 hour, 60 ℃ water bath Stir mechanically in th...

Embodiment 2

[0053] In this example, the substrate is exactly the same as that in Comparative Example 1.

[0054] An epoxy resin coating is prepared by coating the surface of the substrate with an epoxy resin coating.

[0055] Epoxy coatings consist of A and B components.

[0056] Component A is composed of 1g mixed solvent, 10g epoxy resin and a certain amount of graphene oxide modified by silane coupling agent. Wherein, the solvent is a mixed solvent formed by mixing xylene and n-butanol at a mass ratio of 7:3, and the mass of graphene oxide accounts for 0.5% of the mass of the epoxy resin E51.

[0057] The B component is exactly the same as the B component in Example 1.

[0058] The preparation method of silane coupling agent modified graphene oxide is exactly the same as that of Example 1.

[0059] The preparation method of component A is basically the same as that of Example 1, except that the mass of modified graphene oxide added is 0.05 g.

[0060] The method for preparing an ep...

Embodiment 3

[0063] In this example, the substrate is exactly the same as that in Comparative Example 1.

[0064] An epoxy resin coating is prepared by coating the surface of the substrate with an epoxy resin coating.

[0065] Epoxy coatings consist of A and B components.

[0066] Component A is composed of 1g mixed solvent, 10g epoxy resin and a certain amount of graphene oxide modified by silane coupling agent. Wherein, the solvent is a mixed solvent formed by mixing xylene and n-butanol at a mass ratio of 7:3, and the mass of graphene oxide accounts for 0.75% of the mass of the epoxy resin E51.

[0067] The B component is exactly the same as the B component in Example 1.

[0068] The preparation method of silane coupling agent modified graphene oxide is exactly the same as that of Example 1.

[0069] The preparation method of component A is basically the same as that of Example 1, except that the mass of modified graphene oxide added is 0.075g.

[0070] The method for preparing an e...

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Abstract

The invention provides an epoxy resin-oxidized graphene composite coating. The composite coating is prepared by using oxidized graphene as a packing and adding the packing to epoxy resin coating. A coating layer prepared on the surface of a matrix by utilizing the composite coating is excellent in binding force of the matrix, and further greatly improved in corrosion resistance, so as to effectively obstruct a corrosive medium from penetrating from the surface of the coating layer to the path of the matrix. Therefore, the epoxy resin-oxidized graphene composite coating is good in application prospect, and in particular suitable for the matrix in a highly-corrosive severe environment.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and in particular relates to an epoxy resin-graphene oxide composite coating and a use method thereof. The epoxy resin-graphene oxide composite coating with high corrosion resistance can be prepared by using the coating. Background technique [0002] Epoxy resin is a thermosetting resin with high strength, high modulus, low cure shrinkage and good heat resistance, chemical resistance and corrosion resistance, widely used in aviation, automobile, construction and marine industries. Among them, the most representative and widely used is the application of anti-corrosion coatings. More than 40% of epoxy resins in the world are used to produce anti-corrosion coatings every year. [0003] However, with the rapid development of modern industry, traditional anti-corrosion coatings can no longer meet the actual requirements of today's industrial applications, especially when the substrate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/08
CPCC09D163/00C08K3/04C08K5/17C08K9/06C09D5/08C09D7/62
Inventor 赵文杰伍方秦立光房亚楠曾志翔乌学东薛群基
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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