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High-corrosion-resistance metal surface treatment agent and preparation method thereof

A metal surface treatment and additive technology, which is applied in the coating process of metal materials, etc., can solve the problems of phosphate pollution, waste water, and chromate harm to the human body, so as to improve corrosion resistance, increase interface resistance, and reduce electrochemical resistance. The effect of corrosion

Inactive Publication Date: 2020-04-24
NANJING KINDOM FUND NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal corrosion is the damage or deterioration caused by the chemical or electrochemical interaction between the metal and the surrounding environment. Metal corrosion will cause a lot of economic losses. In order to improve the corrosion resistance of the metal surface, chromate or phosphate is usually used Metal surface treatment, but the process of using chromate or phosphate for metal surface will produce a lot of waste water, and chromate is harmful to the human body. Long-term exposure to chromate in production labor can cause lung cancer, while phosphate is harmful to the human body. Pollution of waters including red tides and algal blooms

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A high anti-corrosion metal surface treatment agent, the metal surface treatment agent includes the following components by mass: 50 parts of silane coupling agent mixture, 20 parts of hydrolysis stabilizer, 4 parts of nano-zinc powder, 3 parts of additives, graphene oxide 3 parts, the balance is water, make up to 1000 parts;

[0021] The silane mixture is a mixture of γ-glycidyl ether propyl trimethoxysilane and γ-aminopropyl triethoxysilane, and the γ-glycidyl ether propyl trimethoxysilane and the γ- The mass ratio of aminopropyltriethoxysilane is 4:1, the hydrolysis stabilizer is a mixture of methanol and ethanol, the volume ratio of methanol and ethanol is 3:1, and the particle size of nano zinc powder is 30-100nm , the additive is lanthanum nitrate.

[0022] A preparation method of a high anti-corrosion metal surface treatment agent is characterized in that it comprises the steps of:

[0023] S1. Add 20 parts of a mixture of methanol and ethanol to the reactor, f...

Embodiment 2

[0028] A high anti-corrosion metal surface treatment agent, the metal surface treatment agent comprises the following components by mass: 55 parts of silane coupling agent mixture, 15 parts of hydrolysis stabilizer, 3 parts of nano-zinc powder, 2 parts of additives, graphene oxide 2 parts, the balance is water, make up to 1000 parts;

[0029] The silane mixture is a mixture of γ-glycidyl ether propyl trimethoxysilane and γ-aminopropyl triethoxysilane, and the γ-glycidyl ether propyl trimethoxysilane and the γ- The mass ratio of aminopropyltriethoxysilane is 5:1, the hydrolysis stabilizer is a mixture of methanol and ethanol, the volume ratio of methanol and ethanol is 3:1, and the particle size of nano zinc powder is 30-100nm , the additive is lanthanum nitrate.

[0030] A preparation method of a high anti-corrosion metal surface treatment agent is characterized in that it comprises the steps of:

[0031] S1. Add 15 parts of a mixture of methanol and ethanol to the reaction ...

Embodiment 3

[0036] A high anti-corrosion metal surface treatment agent, the metal surface treatment agent comprises the following components by mass: 50 parts of silane coupling agent mixture, 25 parts of hydrolysis stabilizer, 3 parts of nano aluminum powder, 3 parts of additives, graphene oxide 3 parts, the balance is water, make up to 1000 parts;

[0037] The silane mixture is a mixture of γ-glycidyl ether propyl trimethoxysilane and γ-aminopropyl triethoxysilane, and the γ-glycidyl ether propyl trimethoxysilane and the γ- The mass ratio of aminopropyltriethoxysilane is 6:1, the hydrolysis stabilizer is a mixture of methanol and ethanol, the volume ratio of methanol and ethanol is 4:1, and the particle size of the nano aluminum powder is 30-100nm , the additive is lanthanum nitrate.

[0038] A preparation method of a high anti-corrosion metal surface treatment agent is characterized in that it comprises the steps of:

[0039] S1. Add 25 parts of a mixture of methanol and ethanol to t...

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Abstract

The invention provides a high-corrosion-resistance metal surface treatment agent and a preparation method thereof. The metal surface treatment agent comprises the following components of, in parts bymass, 40-60 parts of silane coupling agent mixture, 15-30 parts of hydrolytic stabilizer, 4-8 parts of nano aluminum powder, nano copper powder or nano zinc powder, 2-5 parts of additive, 2-5 parts ofgraphene oxide, and the balance water. The silane mixture is a mixture of gamma-glycidyl ether propyl trimethoxy silane and gamma-aminopropyltriethoxysilanes, the mass ratio of the gamma-glycidyl ether propyl trimethoxy silane and the gamma-aminopropyltriethoxysilanes is 4-10: 1, the hydrolytic stabilizer is a mixed solution of methanol and ethanol, and the additive is one of lanthanum nitrate, copper nitrate and zinc nitrate. The preparation process of the metal surface treatment agent is simple, and a metal piece treated by the metal surface treatment agent has good corrosion resistance.

Description

technical field [0001] The invention belongs to metal surface treatment technology, in particular to a high anti-corrosion metal surface treatment agent and a preparation method. Background technique [0002] With the development of automobiles, home appliances and other fields, the requirements for special properties such as corrosion resistance and oxidation resistance on the surface of metal parts are also more extensive, which promotes the rapid development of metal surface treatment technology. Metal corrosion is the damage or deterioration caused by the chemical or electrochemical interaction between the metal and the surrounding environment. Metal corrosion will cause a lot of economic losses. In order to improve the corrosion resistance of the metal surface, chromate or phosphate is usually used Metal surface treatment, but the process of using chromate or phosphate for metal surface will produce a lot of waste water, and chromate is harmful to the human body. Long-t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/05
CPCC23C22/05C23C2222/20
Inventor 陈小宏
Owner NANJING KINDOM FUND NEW MATERIAL TECH CO LTD