Cold-spraying-zinc anticorrosive paint with graphene and method for preparing cold-spraying-zinc anticorrosive paint

An anti-corrosion coating and graphene technology, applied in anti-corrosion coatings, conductive coatings, coatings, etc., can solve the problems of low adhesion between cold-coated zinc coatings and steel, the impact resistance index cannot meet the requirements, and the coating flexibility is poor. , to achieve the effect of excellent anti-corrosion performance, convenient construction and good impact resistance

Inactive Publication Date: 2016-05-11
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high zinc powder content and low resin content in the dry film of cold-coated zinc paint, the existing cold-coated zinc products have the following deficiencies: 1. Low adhesion between the cold-coated zinc coating and steel: in the existing cold-coated zinc products

Method used

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  • Cold-spraying-zinc anticorrosive paint with graphene and method for preparing cold-spraying-zinc anticorrosive paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Graphene, 1 part; titanate coupling agent, 0.5 part; acrylic resin, 2.5 parts; ethyl acetate, 20 parts; zinc powder, 75.5 parts; organic bentonite, 0.5 part.

[0019] (1) Mix 1 part of graphene, 0.5 part of titanate coupling agent and 10 parts of ethyl acetate, and disperse evenly by ultrasonic to obtain graphene liquid;

[0020] (2) 2.5 parts of acrylic resin and 10 parts of ethyl acetate are mixed and dissolved to obtain a resin solution;

[0021] (3) Add 11.5 parts of graphene liquid in step (1) to 12.5 parts of resin liquid in step (2), disperse evenly at 800-1000rpm, then add 75.5 parts of zinc powder, 0.5 part of organic bentonite, and disperse evenly at 1200-1500rpm , after filtering, the graphene cold coating zinc anticorrosion coating is obtained.

Embodiment 2

[0023] Graphene, 1 part; KH550, 0.5 part; Polystyrene, 2.5 parts; High-boiling point aromatic hydrocarbon solvent, 20 parts; Zinc powder, 75.5 parts; Fumed silica, 0.5 part.

[0024] (1) Mix 1 part of graphene, 0.5 part of KH550 and 10 parts of high boiling point aromatic hydrocarbon solvent, and disperse evenly by ultrasonic to obtain graphene liquid;

[0025] (2) 2.5 parts of polystyrene resin and 10K high-boiling point aromatic hydrocarbon solvent are mixed and dissolved to obtain resin liquid;

[0026] (3) Add 11.5 parts of graphene liquid in step (1) to 12.5 parts of resin liquid in step (2), disperse evenly at 800~1000rpm, then add 75.5 parts of zinc powder, 0.5 part of fumed silica, 1200~1500rpm Evenly dispersed and filtered, the graphene cold-coated zinc anti-corrosion coating is obtained.

Embodiment 3

[0028] Graphene, 0.5 parts; titanate coupling agent, 0.8 parts; acrylic resin, 2.5 parts; ethyl acetate, 18 parts; zinc powder, 77.8 parts; organic bentonite, 0.4 parts.

[0029] (1) 0.5 part of graphene, 0.8 part of titanate coupling agent and 8 parts of ethyl acetate are mixed, and ultrasonically dispersed evenly to obtain graphene liquid;

[0030] (2) 2.5 parts of acrylic resin and 10 parts of ethyl acetate are mixed and dissolved to obtain a resin solution;

[0031] (3) Add 9.3 parts of the graphene solution in step (1) to 12.5 parts of the resin solution in step (2), disperse evenly at 800-1000 rpm, then add 77.8 parts of zinc powder, 0.4 part of organic bentonite, and disperse evenly at 1200-1500 rpm , after filtering, the graphene cold coating zinc anticorrosion coating is obtained.

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Abstract

The invention relates to cold-spraying-zinc anticorrosive paint with graphene and a method for preparing the cold-spraying-zinc anticorrosive paint. The cold-spraying-zinc anticorrosive paint comprises, by weight, 75-85 parts of zinc powder, 2-3 parts of organic resin, 15-25 parts of solvents, 0.1-2 parts of the graphene, 0.1-1 part of dispersing agents and 0.1-1 part of anti-settling agents. The method for preparing the cold-spraying-zinc anticorrosive paint includes weighing raw materials according to the weight, mixing the graphene, the dispersing agents and a part of the solvents with one another and ultrasonically uniformly dispersing the graphene, the dispersing agents and the solvents; mixing the organic resin with the residual solvents for dissolving; adding dispersed graphene liquid into dissolved resin liquid, and uniformly dispersing at a high speed to obtain mixed liquid; adding the zinc powder and the anti-settling agents into the mixed liquid, and uniformly dispersing at a high speed to obtain the cold-spraying-zinc anticorrosive paint with the graphene. The cold-spraying-zinc anticorrosive paint and the method have the advantages that coatings are good in adhesion and impact resistance and excellent in anticorrosive performance; the cold-spraying-zinc anticorrosive paint comprises single components and is convenient to construct; the cold-spraying-zinc anticorrosive paint is excellent in antistatic property and applicable to the antistatic coatings.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to a graphene cold-coated zinc anticorrosion coating and a preparation method thereof. Background technique [0002] Cold-applied zinc anti-corrosion coatings, also known as coating galvanizing, zinc-based coating, etc., are a special single-component zinc-rich coating. The content of zinc powder in the cold-coated zinc dry film is as high as 96%, which not only provides good cathodic protection for steel in the heavy-duty corrosion environment, but also the special resin and zinc oxide salt in the cold-coated zinc can provide barrier protection for the coating Therefore, it has excellent anti-corrosion properties. However, due to the high zinc powder content and low resin content in the dry film of cold-coated zinc paint, the existing cold-coated zinc products have the following deficiencies: 1. Low adhesion between the cold-coated zinc coating and steel: in the existi...

Claims

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Application Information

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IPC IPC(8): C09D5/10C09D5/24C09D133/00C09D125/06
Inventor 杨瑞原玲刘虎辛曹文健
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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