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Anticorrosive and flame-retardant epoxy resin coating and preparation method thereof

An epoxy resin and flame retardant coating technology, applied in the field of coatings, can solve the problems of difficulty in preventing the infiltration of water, oxygen and corrosive ions, large macromolecular chain gaps, poor anti-corrosion performance, etc., and achieves easy large-scale industrial production, high Effects of adhesion properties, excellent anti-corrosion and flame retardant properties

Pending Publication Date: 2021-09-14
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing epoxy resin coating has the defect of poor barrier performance. After the resin is dried, the gap between the macromolecular chains is large, which makes it difficult to prevent the infiltration of water, oxygen and corrosion ions, and the long-term anti-corrosion performance is not good. Molecular or nanofillers with barrier properties are a more effective modification method

Method used

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  • Anticorrosive and flame-retardant epoxy resin coating and preparation method thereof
  • Anticorrosive and flame-retardant epoxy resin coating and preparation method thereof
  • Anticorrosive and flame-retardant epoxy resin coating and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0029] An epoxy resin anticorrosion and flame-retardant coating, which comprises epoxy resin, crosslinking agent, aminated black phosphorus, water, and the specific component formula is as follows:

[0030]

[0031] The preparation method of above-mentioned epoxy resin anticorrosion flame retardant coating, its steps are as follows:

[0032] a. Preparation of black phosphorus amidation: at room temperature, put black phosphorus crystal powder and urea in a molar ratio of 1:1 in a dry and clean ball-sealed grinding tank, add agate or ceramic balls of appropriate size and quality, and use a ball mill After ball milling for 10 hours, disperse it in deoxygenated deionized water, centrifuge at 3000rpm for 20 minutes, and take the upper dispersion;

[0033] b. Preparation of anti-corrosion and flame-retardant coatings: Weigh epoxy emulsion and deionized water by mass percentage under room temperature conditions, and disperse evenly with ultrasonic stirring to obtain epoxy dispers...

Embodiment 2

[0035] An epoxy resin anti-corrosion and flame-retardant coating, its components include epoxy resin, crosslinking agent, aminated black phosphorus, acetone, and its specific component formula is as follows:

[0036]

[0037] The preparation method of above-mentioned epoxy resin anticorrosion flame retardant coating, its steps are as follows:

[0038] a. Preparation of black phosphorus amidation: at room temperature, put black phosphorus crystal powder and urea in a molar ratio of 1:4 in a dry and clean ball-sealed grinding pot, add agate or ceramic balls of appropriate size and quality, and use a ball mill After ball milling for 8 hours, it was dispersed in deoxygenated deionized water, centrifuged at 3000 rpm for 30 minutes, and the upper dispersion liquid was taken; vacuum-dried to obtain aminated black phosphorus powder.

[0039] b. Preparation of anti-corrosion and flame-retardant coatings: Weigh epoxy resin and acetone by mass percentage under room temperature, and di...

Embodiment 3

[0041] An epoxy resin anti-corrosion and flame-retardant coating, its components include epoxy resin, crosslinking agent, black phosphorous amidation, isopropanol / ethylene glycol diglycidyl ether (2:1), and its specific component formula is as follows :

[0042]

[0043]

[0044] The preparation method of above-mentioned epoxy resin anticorrosion flame retardant coating, its steps are as follows:

[0045] a. Preparation of black phosphorus amidation: at room temperature, put black phosphorus crystal powder and urea in a molar ratio of 1:4 in a dry and clean ball-sealed grinding pot, add agate or ceramic balls of appropriate size and quality, and use a ball mill After ball milling for 6 hours, it was dispersed in deoxygenated deionized water, centrifuged at 3000 rpm for 20 minutes, and the upper dispersion liquid was taken; freeze-dried to obtain aminated black phosphorus powder.

[0046] b. Preparation of anti-corrosion and flame-retardant coating: Weigh epoxy resin and...

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Abstract

The invention discloses an anticorrosive and flame-retardant epoxy resin coating and a preparation method thereof. The anticorrosive and flame-retardant epoxy resin coating is mainly prepared by ultrasonically dispersing aminated black phosphorus nanosheets obtained by ball-milling and stripping into waterborne epoxy resin. The aminated black phosphorus nano material with a lamellar structure is introduced into the coating, so that the prepared coating has good chemical corrosion resistance and flame retardance. The anticorrosive and flame-retardant epoxy resin coating is excellent in adhesion performance, high in hardness, good in anti-corrosion and flame-retardant effect and excellent in comprehensive performance. The preparation method is simple, is convenient for industrial production, can be used for preparing the epoxy resin anticorrosive and flame-retardant coating, and has a better application prospect in the field of anticorrosive and flame-retardant functional coatings.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an epoxy resin anti-corrosion and flame-retardant coating and a preparation method thereof. Background technique [0002] Epoxy resin coatings are the most representative and the largest amount of high-performance anti-corrosion coatings. The molecular structure of epoxy resin is characterized by the presence of epoxy groups in the macromolecular chain. More than 40% of epoxy resin is used in the manufacture of epoxy coatings in the world every year, most of which are used in the anti-corrosion field. However, the existing epoxy resin coating has the defect of poor barrier performance. After the resin is dried, the gap between the macromolecular chains is large, which makes it difficult to prevent the infiltration of water, oxygen and corrosion ions, and the long-term anti-corrosion performance is not good. Molecular or nanofillers with barrier properties are a more effective m...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D5/18
CPCC09D163/00C09D5/08C09D5/18C08K2003/026C08L2201/02C08L2205/025C08L63/00C08K9/04C08K3/02C08K7/00
Inventor 谢德龙徐涛谢于辉梅毅
Owner KUNMING UNIV OF SCI & TECH
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