A kind of graphene anticorrosion coating and preparation method thereof

An anti-corrosion coating and graphene technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of weak directivity and insufficient performance when fluorocarbon is added to graphene

Active Publication Date: 2021-10-22
国宏中晶集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of graphene / fluorocarbon anticorrosion coating, to solve the problem that the fluorocarbon of the prior art adds graphene directivity is not strong, performance is insufficient

Method used

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  • A kind of graphene anticorrosion coating and preparation method thereof

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Embodiment 1

[0016] A kind of graphene anticorrosion coating, it is characterized in that: comprise fluorocarbon resin particle and excessive emulsifier SE-10N, water, ammonium persulfate, PVA, the graphene oxide microplate that average radial dimension is higher than 5um; Wherein fluorocarbon The weight ratio of the resin to the graphene oxide microsheets is about 2.2-5.4:1. The solid content of this graphene anticorrosion coating is between 40-65%; The pH value of this graphene anticorrosion coating is between 7.5-8; Between 60um.

Embodiment 2

[0018] A kind of preparation method of graphene anticorrosion coating, it makes a kind of graphene anticorrosion coating as described above, it is characterized in that, comprises the following steps: 1) the preparation step of graphene microchip: with prefabricated a large amount of expanded graphite flakes Layer is used as raw material, and the graphene microsheet dispersion is generated by ultrasonic peeling in absolute ethanol for more than 1-2h; after low-frequency ultrasound, the upper layer dispersion is taken out, and the unstripped graphite is left in the container; the process of sublation: the upper layer dispersion Supplement absolute ethanol to more than 200-300ml, high-intensity ultrasonic vibration for 3-5min, stand still for 5-10s, immediately discard half of the dispersion in the upper layer, and then add absolute ethanol to a volume of more than 200-300ml; repeat the above The process of sublation is at least 10-20 times, until the average radial size of the g...

Embodiment 3

[0022] As in Example 2, in the step (1), the graphene microsheet dispersion is generated through ultrasonic peeling for more than 1.5h in dehydrated alcohol; the sublation process: the solvent dehydrated alcohol of the upper dispersion is replenished to more than 220ml , high-intensity ultrasonic vibration for 4 minutes, standing still for 6 seconds, immediately discard half of the dispersion liquid in the upper layer, and then add absolute ethanol to a volume above 220ml; repeat the above sublation process at least 15 times until the graphene microchips are confirmed by AFM or SEM. The average radial dimension is higher than 5um.

[0023] In the step (2), 10 parts by weight of fluorine-containing liquid monomer TFEMA, 0.9 parts by weight of emulsifier SE-10N, and 48 parts by weight of double distilled water were stirred at room temperature for 50 minutes at high speed, and 0.9 parts by weight of ammonium persulfate as the fine powder of the initiator, and then add 19 parts by...

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Abstract

A kind of graphene anticorrosion paint, it is characterized in that: comprise fluorocarbon resin particle and excessive emulsifier SE-10N, water, ammonium persulfate, PVA, the graphene oxide microplate that average radial dimension is higher than 5um. Also provided is a method for preparing a graphene anti-corrosion coating, comprising the following steps: a preparation step of a graphene microchip, a preparation step of a fluorocarbon emulsion, and a preparation step of a graphene modified coating.

Description

technical field [0001] The invention relates to the field of graphene anticorrosion coatings, in particular to a graphene anticorrosion coating and a preparation method thereof. Background technique [0002] Coating technology has been developed for more than 100 years. From the earliest organic solvent-based coatings to the current energy-saving and environmentally-friendly coatings, organic solvents played a huge role in the early coating preparation, but due to environmental pollution and toxic waste, Emissions are not up to standard, and organic coatings have declined. Now water-based inorganic coatings are emerging. By adding fillers of granular or lamellar materials, they can protect the material surface from corrosion and protection without being corrosive or polluting. This is an advanced development trend. [0003] Fluorocarbon materials are the main raw materials of typical water-based coatings, which have the above advantages, but fluorocarbon materials also have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/12C09D5/08C09D7/61C09D7/65
CPCC09D5/08C09D127/12C09D7/61C09D7/65C08L29/04C08K3/042
Inventor 张岩付吉国董伟赵然周卫东曾蕾
Owner 国宏中晶集团有限公司
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