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Anticorrossion antiwear ceramic paint

A wear-resistant ceramic and heavy-duty anti-corrosion technology, used in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor coating compactness, large filler particles, and inability to use pipes, etc. Excellent abrasiveness and improved workability

Inactive Publication Date: 2001-12-12
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large filler particles, the formed coating has poor compactness and thick paint film, so it cannot be used for the inner wall of the pipeline, and can only be used for ballast water tanks and other equipment of ships.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The parts by weight of each composition of the coating are: the main agent is epoxy resin: 30.25; the toughening agent is dibutyl phthalate: 3.75; n-butyl ester=7:3 (weight ratio); thixotropic agent is gas phase SiO 2:1; ceramic powder: 43 (of which: rutile TiO2:3 with a particle size of 2 o 3 :20; Si with a particle size of 0.5-1.0 μm 3 N 4 :20). The curing agent is commercially available T-31 modified amine curing agent, main agent: curing agent = 16.5: 1 (weight ratio). According to the national standard, the wear resistance of the coating is 19.6mg, the flexibility is 1 (mm), the adhesion is level 1, and the impact resistance is 50kg / cm 2 .

Embodiment 2

[0024] The parts by weight of each composition of the coating are: the main agent is epoxy resin: 33.3; the toughening agent is dibutyl phthalate: 6; the mixed solvent is a mixed solution of xylene and n-butyl ester: 20, xylene: n-butyl ester=7:3 (weight ratio); thixotropic agent is gas phase SiO 2 :0.7; ceramic powder: 40 (of which: rutile TiO with particle size 2 :4; Al with a particle size of 0.5-1.0 μm 2 o 3 :20; Si with a particle size of 0.5-1.0 μm 3 N 4 :16). The curing agent is T-31 modified amine curing agent, main agent: curing agent = 15:1 (weight ratio). According to the national standard, the wear resistance of the coating is 20mg, the flexibility is 1 (mm), the adhesion is 1, and the impact resistance is 50kg / cm 2 .

Embodiment 3

[0026] The parts by weight of each composition of the coating are: the main agent is epoxy resin: 35; the toughening agent is dibutyl phthalate: 5; n-butyl ester=7:3 (weight ratio); thixotropic agent is gas phase SiO 2 : 1; ceramic powder: 38 (of which: rutile TiO with particle size 2 :5.85; Al with a particle size of 0.5~1.0μm 2 o 3 : 11.70; Si with a particle size of 0.5-1.0 μm 3 N 4 :20.45). The curing agent is T-31 modified amine curing agent, main agent: curing agent = 14.5: 1 (weight ratio). According to the national standard, the wear resistance of the paint is 21mg, the flexibility is 1 (mm), the adhesion is 1, and the impact resistance is 50kg / cm 2 .

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Abstract

An anticorrosion and antiwear ceramic paint is prepared from epoxy resin (28.5-35 wt.portions), dibutyl phthalate (3.75-6), mixed solvent of xyrene and n-butyl ester (20-24), gas-phase SiO2 (0.5-1) and ceramic powder (38-45) which contains TiO2 (3-6.3), Al2O3 (11.7-20) and Si3N4 (16-20.45). The weight ratio of main component to slidifying agent is (14.5-17):1. It can be directly applied to the surfaces of metal, glass fibre, plastic, or concrete with the advantages of high antiwear performance and adhesion, and thin and compact coated layer.

Description

(1) Technical field [0001] The invention relates to an anti-corrosion and wear-resistant coating mainly composed of epoxy resin and ceramic powder, and the ceramic powder is made of TiO 2 、Al 2 o 3 and Si 3 N 4 Composition, especially the heavy-duty anti-corrosion and wear-resistant coating for the inner wall of the pipeline. (2) Background technology [0002] The methods of improving the wear resistance of coatings are divided into two categories: one is to improve the film-forming substances; the other is to add wear-resistant fillers to the coatings. The method of adding wear-resistant fillers in coatings, for example: Hahalina et al. of the former Soviet Union disclosed a modified epoxy resin in "Wear-resistant Composite Coating" (Russian Patent SU 1742284 A1 АНТИΦРИКЦИННАЯ КОМΠОЗИЦИЯ ДЛЯΠОКРЬIТИЯ УЗЛОТ РЕНИЯ СКОЬЖЕНИЯ) It is a film-forming substance, graphite, acid-resistant powder and quartz powder are used as fillers, and it is a wear-resistant coating cured with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/08C09D163/00
Inventor 贾梦秋
Owner BEIJING UNIV OF CHEM TECH
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