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A high-efficiency anti-corrosion h-bn/go/waterborne epoxy composite material, preparation method and application

A composite material, water-based epoxy technology, used in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of difficult dispersion, affecting the application of h-BN, etc., to achieve a simple and feasible preparation method, high-efficiency anti-corrosion ability, The effect of low production cost

Active Publication Date: 2021-09-17
成都恒固新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the surface of h-BN nanosheets is chemically inert, it is difficult to disperse into water or other common solvents, and it is also difficult to react with other substances, which seriously affects the application of h-BN in actual production. h-BN nanosheets are uniformly dispersed in water-based epoxy coatings to increase the anti-corrosion performance of water-based epoxy coatings is one of the main topics of current research

Method used

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  • A high-efficiency anti-corrosion h-bn/go/waterborne epoxy composite material, preparation method and application
  • A high-efficiency anti-corrosion h-bn/go/waterborne epoxy composite material, preparation method and application
  • A high-efficiency anti-corrosion h-bn/go/waterborne epoxy composite material, preparation method and application

Examples

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Embodiment 1

[0035] This embodiment provides a method for preparing an efficient anti-corrosion h-BN / GO / waterborne epoxy composite material, comprising the following steps:

[0036] (1) Preparation of h-BN / GO

[0037] S11: Weigh a certain amount of neutral GO, add deionized water, and perform normal ultrasonication for 10 minutes to obtain a uniform black liquid;

[0038] S12: Add h-BN powder into the black liquid, and sonicate the probe for 1 hour to obtain a uniform mixed solution, wherein the mass ratio of h-BN powder to GO is 1:1, and the concentration of the mixed solution is 1 mg / mL;

[0039] S13: Centrifuge the mixed solution obtained in S12, and freeze-dry the lower precipitate to obtain solid h-BN / GO;

[0040] (2) Preparation of h-BN / GO / EP composites

[0041] S21: Weigh 0.05 g of the h-BN / GO composite material prepared in step S13, add it into 5 ml of pure water, and disperse evenly by ultrasonic to obtain a dispersion liquid of 0.01 g / mL;

[0042] S22: Add the dispersion liqui...

Embodiment 2

[0046] The difference between this embodiment and Embodiment 1 is that the mass ratio of h-BN powder to GO in step S12 of this embodiment is 1:2.

[0047] The h-BN / GO / EP composite material prepared by the preparation method of this example is designated as product II.

Embodiment 3

[0049] The difference between this embodiment and Embodiment 1 is that the mass ratio of h-BN powder to GO in step S12 of this embodiment is 1:3.

[0050] The h-BN / GO / EP composite material prepared by the preparation method of this example is designated as product III.

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Abstract

The present invention provides a kind of high-efficiency anticorrosion h-BN / GO / waterborne epoxy composite material, preparation method and application, the preparation method of the present invention comprises the following steps: (1) preparation of h-BN / GO: take a certain amount of GO, add deionized water, perform the first ultrasound to obtain a uniform black liquid; then add h-BN powder to the black liquid, perform the second ultrasound to obtain a uniform mixture; centrifuge the mixture, and precipitate the lower layer Freeze-dry to obtain solid h-BN / GO; (2) Preparation of h-BN / GO / EP composite material: Weigh a certain mass of h-BN / GO composite material into pure water, ultrasonically disperse evenly, and the obtained dispersion solution was added to EP to obtain h‑BN / GO / EP composites. The h-BN / GO / water-based epoxy composite material prepared by the preparation method of the present invention has high-efficiency anti-corrosion ability, the preparation method of the present invention is simple and feasible, the preparation cost is low, and the preparation raw materials are all environmentally friendly, and are suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of water-based epoxy composite materials, and specifically relates to a high-efficiency anti-corrosion h-BN / GO / water-based epoxy composite material, a preparation method and an application. Background technique [0002] Waterborne epoxy coating is a more environmentally friendly coating developed after solvent-based coatings. It has the advantages of long-term corrosion resistance, solvent resistance, abrasion resistance, flexibility and good adhesion to various substrates. It is currently One of the most widely used coatings. [0003] However, when water-based epoxy resin (EP) is prepared, the epoxy resin is dispersed in water in the form of molecular aggregates, and it is difficult to form a uniform and dense film after curing; in addition, the residual hydrophilic groups will also improve the coating quality. The hydrophilicity of the coating reduces the barrier ability of the coating to corrosive media such as wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/20
CPCC08K2003/385C09D5/08C09D163/00C09D7/20C08K3/38C08K3/042
Inventor 何毅伍友清陈春林李振宇钟菲夏云卿谢鹏
Owner 成都恒固新材料科技有限公司