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Metal surface treatment agent as well as preparation method thereof

A technology of metal surface treatment and treatment agent, applied in the direction of metal material coating process, etc., can solve the problems of difference in corrosion resistance and adhesion of coating film, and achieve the effect of improving adhesion of coating film and improving corrosion resistance.

Active Publication Date: 2014-01-29
宁波英科特精工机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, all chromate-free metal surface treatments or phosphate metal surface treatments in the prior art still cannot compare with the effect of using chromate or phosphate metal surface treatments, and there is also a difference in corrosion resistance, and the subsequent There is also a gap in the coating film adhesion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A metal surface treatment agent consisting of titanium fluoride, zirconium nitrate, zirconium fluoride, aminosilane, 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane alkane composition; titanium fluoride, zirconium nitrate and zirconium fluoride account for 110-140ppm of the total treatment agent in terms of metal elements, wherein the ratio of titanium fluoride to zirconium nitrate and zirconium fluoride metal element atoms is 1:3, The metal element atom ratio of zirconium nitrate and zirconium fluoride is 2:5; aminosilane and 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane The molar ratio is 17:3, wherein, the molar ratio of 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane is 1:1.

Embodiment 2

[0036] A metal surface treatment agent consisting of titanium fluoride, zirconium nitrate, zirconium fluoride, aminosilane, 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane alkane composition; titanium fluoride, zirconium nitrate and zirconium fluoride account for 550-650ppm of the total treatment agent in terms of metal elements, wherein the ratio of titanium fluoride to zirconium nitrate and zirconium fluoride metal element atoms is 1:1, The metal element atom ratio of zirconium nitrate and zirconium fluoride is 2:5; aminosilane and 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane The molar ratio is 9:1, and the molar ratio of 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane is 1:1.

[0037] The preparation method of metal surface treatment agent,

[0038] First, condensate I was prepared by hydrolysis of p-aminosilane, 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane;

[0039]Secondly, the metered titanium fluoride, zirconium ni...

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Abstract

The invention relates to a metal surface treatment agent as well as a preparation method thereof. The metal surface treatment agent consists of titanium fluoride, zirconium nitrate, zirconium fluoride, amino silane, 1,2-di(triethoxy silyl) ethane and di(triethoxy silyl) hexane. The titanium fluoride, the zirconium nitrate and the zirconium fluoride account for 110ppm-140ppm or 550ppm-650ppm of the total amount of the treatment agent in terms of metal elements, wherein a ratio of metal element atoms of the titanium fluoride to metal element atoms of the zirconium nitrate and the zirconium fluoride is 1:1-1:3; a ratio of metal element atoms of the zirconium nitrate to the metal element atoms of the zirconium fluoride is 2:5; a molar ratio of the amino silane to the 1,2-di(triethoxy silyl) ethane and the di(triethoxy silyl) hexane is 17:3-9:1; a molar ratio of the 1,2-di(triethoxy silyl) ethane to the di(triethoxy silyl) hexane is 1:1.

Description

technical field [0001] The invention belongs to the field of metal surface treatment, and specifically refers to a treatment agent for metal surface treatment and a preparation method thereof. Background technique [0002] To improve the corrosion resistance of metal surfaces, metal surfaces are often treated with chromates or treated with phosphates. However, the waste water in the metal surface treatment process using chromate or phosphate has serious damage to the environment and the health of workers. With the increasing awareness of environmental protection in the world, the use of chromate or phosphate is now subject to strict restrictions. [0003] Although the harm to workers is relatively small in the process of metal surface treatment with phosphate, the problem of rich phosphating in the subsequent wastewater is serious, and the use of chromium-containing salts is inevitable in the process of using phosphate. Therefore, now Many countries have banned the use of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/34C23C22/36
CPCC23C2222/20
Inventor 应兴隆
Owner 宁波英科特精工机械股份有限公司
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