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Graphene-like self-dispersing paint and preparation method thereof

A graphene, self-dispersing technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problem of insufficient comprehensive performance of the coating system, achieve increased convenience and stability, good anti-corrosion effect, and broaden the selection of materials range effect

Active Publication Date: 2019-08-06
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the lack of dispersibility of the existing graphene coatings and the insufficient stability of the overall performance of the coating system caused by the addition of excessive additives. For this reason, a self-dispersing graphite based on its own functional group structure has been developed. vinyl filler

Method used

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  • Graphene-like self-dispersing paint and preparation method thereof
  • Graphene-like self-dispersing paint and preparation method thereof
  • Graphene-like self-dispersing paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step a: Mix 10 parts of 2,4,6-trihydroxy-1,3,5-benzenetricarbaldehyde and 11 parts of p-phenylenediamine, ball mill for 2 hours (ball-material ratio 10 / 1), wash with acetone and dry to obtain Graphene-like fillers;

[0035] Step b: Take 60 parts of epoxy resin, 6 parts of graphene-like filler, and 10 parts of diluent, mix and stir evenly, and let stand for 2 days to obtain a mixed slurry;

[0036] Step c: adding 30 parts of curing agent to the mixed slurry, stirring evenly, and vacuum degassing to obtain a self-dispersing graphene-like anticorrosion coating;

[0037] Step d: apply the paint on the metal, and cure it at room temperature for 24 hours, and then cure it at 60° C. for 24 hours to obtain an anti-corrosion coating.

Embodiment 2

[0039] Step a: Mix 11 parts of 2,4,6-trihydroxy-1,3,5-benzenetricarbaldehyde and 14 parts of 2-methyl-p-phenylenediamine, ball mill for 2 hours (ball-material ratio 10 / 1), and wash with acetone Post-drying to obtain graphene-like fillers;

[0040] Step b: Take 60 parts of epoxy resin, 8 parts of graphene-like filler, and 9 parts of diluent, mix and stir evenly, and let stand for 2 days to obtain a mixed slurry;

[0041] Step c: adding 30 parts of curing agent to the mixed slurry, stirring evenly, and vacuum degassing to obtain a self-dispersing graphene-like anticorrosion coating;

[0042] Step d: apply the paint on the metal, and cure it at room temperature for 24 hours, and then cure it at 60° C. for 24 hours to obtain an anti-corrosion coating.

Embodiment 3

[0044] Step a: Mix 11 parts of 2,4,6-trihydroxy-1,3,5-benzenetricarbaldehyde and 15 parts of 2-ethyl-p-phenylenediamine, ball mill for 2 hours (ball-to-material ratio 10 / 1), and wash with acetone Post-drying to obtain graphene-like fillers;

[0045] Step b: Take 70 parts of epoxy resin, 5 parts of graphene-like filler, and 7 parts of diluent, mix and stir evenly, and let stand for 2 days to obtain a mixed slurry;

[0046] Step c: adding 50 parts of curing agent to the mixed slurry, stirring evenly, and vacuum degassing to obtain a self-dispersing graphene-like anti-corrosion coating;

[0047] Step d: apply the paint on the metal, and cure it at room temperature for 24 hours, and then cure it at 60° C. for 24 hours to obtain an anti-corrosion coating.

[0048] The self-dispersing graphene-like anti-corrosion coating prepared by the present invention does not require any additional dispersing aids, and the slurry can obtain a mixed system with good stability and dispersibility ...

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Abstract

The invention discloses graphene-like self-dispersing paint and a preparation method thereof, and relates to graphene-like self-dispersing anticorrosive paint which comprises the following componentsin parts by mass: 60-80 parts of epoxy resin, 40-80 parts of a curing agent, 5-40 parts of a diluent and 1-6 parts of a graphene-like filler. The graphene-like epoxy paint does not need to add any dispersing assistant, the dispersibility and the stability of the graphene-like filler increase with the increase of the storage time, and the prepared coating has excellent seawater permeation resistance. The preparation process and equipment are simple, the coating process is simple and convenient, and the graphene-like self-dispersing anticorrosive paint has good marine heavy corrosion preventioneffect on metals and alloys such as carbon steel, copper and the like.

Description

technical field [0001] The invention belongs to the field of coatings, and relates to a preparation of an anti-corrosion coating and a process thereof, in particular to a mixture of a graphene-like material, an epoxy resin, a curing agent, a diluent, and the like. Background technique [0002] Metal corrosion has brought huge economic losses and waste of resources to human beings. According to statistics, in 2014 alone, the cost of corrosion in my country was 2.1 trillion yuan, accounting for 3.34% of the gross domestic product (GDP) of that year. Studies have shown that if effective measures are taken to protect metals, this value will be reduced by 30% to 40%, and its economic value and social benefits are significant. Among many protective methods, coating protection technology is the most convenient and economical, and the post-maintenance is the easiest, so it is widely used. [0003] Graphene has a good potential as a coating filler due to its good physical and chemi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C08G12/08
CPCC09D163/00C09D5/08C08G12/08C08L2205/14C08L61/22Y02W30/91
Inventor 陈守刚张新宇李文李航
Owner OCEAN UNIV OF CHINA
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