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Modified graphene oxide co-cured waterborne epoxy resin coating and preparation method thereof

A technology of water-based epoxy resin and oxide stone, which is applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc., can solve the problems of poor corrosion resistance and poor film-forming performance, achieve excellent performance, improve corrosion resistance, The effect of improving density

Active Publication Date: 2020-07-28
广东吉美帮新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There are many needle-shaped holes on the surface of the water-based epoxy resin coating, the film-forming performance is poor, the corrosion resistance is poor, and the modified graphene oxide in the prior art is only the defect of utilizing the simple physical shielding effect of graphene oxide. The purpose of the present invention is to Preparation of a modified graphene oxide co-cured water-based epoxy resin coating with good corrosion resistance, no holes, and good film-forming performance and its preparation method

Method used

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  • Modified graphene oxide co-cured waterborne epoxy resin coating and preparation method thereof
  • Modified graphene oxide co-cured waterborne epoxy resin coating and preparation method thereof
  • Modified graphene oxide co-cured waterborne epoxy resin coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0042] In terms of parts by mass, take 0.1 parts of graphene oxide powder and disperse it in 100 parts of absolute ethanol, then add 2 parts of silane coupling agent γ-methacryloxypropyl trimethoxysilane into the reaction kettle and heat up to 60 ℃, reacted for 7 hours, after the reaction was completed, it was lowered to room temperature and washed 3 times with deionized water, then 400 parts of deionized water was added, and 10 parts of allyl trimethyl ammonium chloride was added as a modifier and the reaction kettle was heated up to React at 70°C for 4 hours, cool down to room temperature after the reaction is completed, filter and wash with deionized water for 5 times, then dry into powder to obtain modified graphene oxide powder;

[0043] 2) In terms of parts by mass, 0.006 parts of the co-curing agent modified graphene oxide powder obtained in step 1) are dispersed into 4 parts of deionized water, and 2.5 parts of water-based epoxy resin curing agent Us-700 are taken, and ...

Embodiment 2

[0047] 1) In terms of parts by mass, take 0.5 parts of graphene oxide powder and disperse it in 350 parts of absolute ethanol, then add 5 parts of silane coupling agent vinyl tris(b-methoxyethoxy)silane and put it into the reaction kettle to raise the temperature to 100°C, react for 9 hours, after the reaction is completed, cool down to room temperature and wash with deionized water for 3 times, then add 600 parts of deionized water, and then add 20 parts of (3-acrylamidopropyl) trimethyl ammonium chloride for modification Put the reagents together into the reactor and raise the temperature to 100°C for 8 hours to react. After the reaction is completed, cool down to room temperature, filter and wash with deionized water for 3 times, and then dry it into powder to obtain modified graphene oxide powder;

[0048] 2) In terms of parts by mass, 0.036 parts of the co-curing agent modified graphene oxide powder obtained in step 1) are dispersed into 8 parts of deionized water, and 5 p...

Embodiment 3

[0052] 1) In terms of parts by mass, take 0.8 parts of graphene oxide powder and disperse it in 500 parts of absolute ethanol, then add 8 parts of silane coupling agent vinyltriethoxysilane into the reactor and raise the temperature to 120°C, and react for 11 hours After the reaction is completed, it is lowered to room temperature and washed with deionized water for 5 times, then 750 parts of deionized water is added, and 35 parts of methacryloyloxyethyltrimethylammonium chloride is added as a modifier and the temperature is raised to 120 ℃ for 9 hours, after the reaction was completed, the reaction was lowered to room temperature, filtered and washed with deionized water for 4 times, and then dried into powder to obtain modified graphene oxide powder;

[0053] 2) In terms of parts by mass, 0.06 parts of the co-curing agent modified graphene oxide powder obtained in step 1) are dispersed into 16 parts of deionized water, and 10 parts of water-based epoxy resin curing agent WG-8...

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Abstract

The invention discloses modified graphene oxide co-curing water-borne epoxy resin paint and a preparation method thereof. The method includes the steps: taking a silane coupling agent as a bridge forconnecting graphene oxide and a modifier containing ammonium ions to serve as a curing agent for water-borne epoxy resin; mixing modified graphene oxide and the water-borne epoxy resin curing agent toserve as a component B for the water-borne epoxy resin paint, and taking bisphenol A type epoxy resin as a component A for the paint; uniformly mixing and dispersing the component A and the componentB. The environment-friendly modified graphene oxide co-curing water-borne epoxy resin paint with good corrosion resistance and excellent film-forming properties and without holes is prepared, and a coating preparation process is simple in operation and conforms to green and environmental protection concepts.

Description

technical field [0001] The invention relates to a water-based epoxy resin coating, in particular to a modified graphene oxide co-cured water-based epoxy resin coating and a preparation method thereof. Background technique [0002] Metal materials are widely used in various fields such as construction, transportation, and national defense. However, metals are prone to chemical reactions with the surrounding environment during use, causing metals to corrode. Corrosion is an increasingly serious problem. Every year, metal corrosion causes huge global damage. waste of resources. To solve this problem, the protection of metal substrates has been extensively studied. Among them, the protection of metal by polymer coating is considered to be the most effective method. Epoxy resin is widely used in anti-corrosion coatings because of its excellent corrosion resistance, heat resistance and excellent substrate adhesion, accounting for more than half of the domestic market share of an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C08G59/56C08G59/50
CPCC08G59/5006C08G59/56C09D5/08C09D163/00C08K9/06C08K9/04C08K3/042
Inventor 张心亚田玉琴谢于辉钟理戴飞
Owner 广东吉美帮新材料有限公司
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