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A kind of graphene anticorrosion primer for heat exchanger in marine environment and preparation method thereof

A marine environment, anti-corrosion primer technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of performance that cannot meet the new generation of high-end equipment, performance degradation, easy oxidation, etc., and achieve large-scale industrial production , optimize thermal conductivity, enhance the effect of heat dissipation area

Active Publication Date: 2021-06-25
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, traditional functional coatings based on special metals (such as metal blades of heat exchangers) are prone to oxidation and corrosion in marine environments, and the performance degradation is extremely serious, making their performance far from meeting the new requirements. The demand for a generation of high-end equipment

Method used

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  • A kind of graphene anticorrosion primer for heat exchanger in marine environment and preparation method thereof
  • A kind of graphene anticorrosion primer for heat exchanger in marine environment and preparation method thereof
  • A kind of graphene anticorrosion primer for heat exchanger in marine environment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] 1. Preparation of atomic metal-covered graphene

[0102] The dimethyl carbonate solution added with ferric chloride and perchloric acid is used as the electrolyte, the mass fraction of ferric chloride is 1%, and the mass concentration of perchloric acid is 30%; the flexible graphite paper with a thickness of 1mm is used as the positive electrode Plates and negative electrode plates are placed in a 100L small electrolytic cell in the form of positive and negative arrays; a 5.0V voltage is applied through a DC power supply to form a strong electric field between the positive electrode plate and the negative electrode plate, and perchlorate ions are used for intercalation exfoliated graphene.

[0103] After 60 hours of electrolysis, filter the electrolyte, collect the precipitate, put it in ultrapure water for ultrasonic washing, the ultrasonic frequency is 30kHz, and the ultrasonic time is 2h; the ultrasonic product is collected again, centrifuged and enriched at 6000r / mi...

Embodiment 2

[0116] 1. Preparation of atomic metal-covered graphene

[0117] The dimethyl carbonate solution added with ferric chloride and perchloric acid is used as the electrolyte, the mass fraction of ferric chloride is 1%, and the mass concentration of perchloric acid is 30%; the flexible graphite paper with a thickness of 1mm is used as the positive electrode Plates and negative electrode plates are placed in a 100L small electrolytic cell in the form of positive and negative arrays; a 5.0V voltage is applied through a DC power supply to form a strong electric field between the positive electrode plate and the negative electrode plate, and perchlorate ions are used for intercalation exfoliated graphene.

[0118] After 60 hours of electrolysis, filter the electrolyte, collect the precipitate, put it in ultrapure water for ultrasonic washing, the ultrasonic frequency is 30kHz, and the ultrasonic time is 2h; the ultrasonic product is collected again, centrifuged and enriched at 6000r / mi...

Embodiment 3

[0130] 1. Preparation of atomic metal-covered graphene

[0131] The dimethyl carbonate solution added with ferric chloride and perchloric acid is used as the electrolyte, the mass fraction of ferric chloride is 2%, and the mass concentration of perchloric acid is 30%; the flexible graphite paper with a thickness of 1mm is used as the positive electrode plate And the negative electrode plate is placed in a small 100L electrolytic cell in the form of positive and negative arrays; a 5.0V voltage is applied through a DC power supply to form a strong electric field between the positive electrode plate and the negative electrode plate, and perchlorate ions are used for intercalation and stripping Graphene.

[0132] After 60 hours of electrolysis, filter the electrolyte, collect the precipitate, put it in ultrapure water for ultrasonic washing, the ultrasonic frequency is 30kHz, and the ultrasonic time is 2h; the ultrasonic product is collected again, centrifuged and enriched at 6000...

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Abstract

The invention discloses a graphene anti-corrosion primer for heat exchangers in a marine environment, comprising a main agent A and an auxiliary agent B; the mass ratio of the main agent A and the auxiliary agent B is 3:1-6:1; Molecular resins, resin diluents, graphene blockers, inorganic fillers, film formers and defoamers, Auxiliary B includes initiators, curing agents and reactive diluents. And a preparation method of the graphene anti-corrosion primer is disclosed. The graphene anti-corrosion primer of the invention has good heat dissipation and anti-corrosion performance, and further improves the adhesion, weather resistance and wear resistance of the coating, so that the coating is lighter in weight.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion technology for heat exchange equipment in marine environments, and more specifically relates to a graphene anti-corrosion primer for heat exchangers in marine environments and a preparation method thereof. Background technique [0002] As a pillar industry for the development of marine economy, marine engineering equipment has developed rapidly in recent years. The special service environment (high temperature, high humidity, high salt spray) of marine engineering equipment makes it face serious corrosion and functional degradation problems. Therefore, the development of a comprehensive protection system represented by functional coatings has become a common demand of the industry. [0003] At present, traditional functional coatings based on special metals (such as metal blades of heat exchangers) are prone to oxidation and corrosion in marine environments, and the performance degradation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D167/08C09D127/12C09D133/04C09D5/10C09D7/61C09D7/62
CPCC08K2003/0893C08L2201/08C09D5/106C09D127/12C09D133/04C09D163/00C09D167/08C09D7/61C09D7/62C08K9/10C08K3/042C08K3/08C08K3/346C08K3/34C08K13/06
Inventor 王俊中刘欣田王聪伟王俊英张亲
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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