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Method for preparing non-ferrous metal surface treating agent

A surface treatment agent and non-ferrous metal technology, which is applied in the field of preparation of non-ferrous metal surface treatment agents, can solve problems such as pollution and great harm to human health, and achieve the effects of no pollution to the environment, good promotion and use, and good stability

Active Publication Date: 2015-02-18
重庆市奉节县宏耀金属制品制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of serious pollution and great harm to human health in the coating treatment method in the existing metal surface treatment technology, the present invention provides a preparation method of non-ferrous metal surface treatment agent, which can effectively prevent metal oxidation and corrosion , minimal environmental pollution, no harm to human health during use, and low cost, easy to promote

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A non-ferrous metal surface treatment agent, its components and parts by mass are as follows: 5 parts of sodium polyacrylate; 3 parts of sodium pyrophosphate; 2 parts of carboxymethyl cellulose; 3 parts of sodium dodecylsulfonate; 4 parts of acetic acid 3 parts of chitosan; 7 parts of aluminum oxide; 1 part of triethanolamine and 75 parts of deionized water. Its preparation method is as follows: (a) take 5 parts of sodium polyacrylate, 3 parts of sodium pyrophosphate, 2 parts of carboxymethyl cellulose and 3 parts of sodium dodecylsulfonate according to the mass parts and mix them, add 75 parts of deionized water , stir evenly, heat to 45°C under stirring, and keep warm for 30min; (b) cool the solution obtained in step (a) to 25°C, add 3 parts of chitosan and 7 parts of alumina, and stir for 20min; (c) add Add 4 parts of acetic acid and 1 part of triethanolamine to the solution obtained in step (b), and stir evenly to obtain a non-ferrous metal surface treatment agent. ...

Embodiment 2

[0033] With embodiment 1, the difference is the content of each substance: 8 parts of sodium polyacrylate; 1 part of sodium pyrophosphate; 1 part of carboxymethyl cellulose; 1 part of sodium dodecylsulfonate; 5 parts of acetic acid; 6 parts of sugar; 12 parts of aluminum oxide; 2 parts of triethanolamine and 80 parts of deionized water.

[0034] The service life of the stainless steel workpiece treated by the invention is 3 months longer than that of the untreated one, the surface can keep bright, the corrosion resistance to oxidants and acid-base substances is significantly enhanced, the treated wastewater is easy to biodegrade, and has no pollution to the environment. And there is no harm to the health of the operator.

Embodiment 3

[0036] With embodiment 1, the difference is the content of each substance: 6.5 parts of sodium polyacrylate; 5 parts of sodium pyrophosphate; 0.5 part of carboxymethyl cellulose; 2 parts of sodium dodecylsulfonate; 3 parts of acetic acid; 8 parts of sugar; 9 parts of aluminum oxide; 3 parts of triethanolamine and 70 parts of deionized water.

[0037] The service life of the stainless steel workpiece treated by the invention is 4 months longer than that of the untreated one, the surface can keep bright, the corrosion resistance to oxidants and acid-base substances is significantly enhanced, the treated wastewater is easy to biodegrade, and has no pollution to the environment. And there is no harm to the health of the operator.

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Abstract

The invention discloses a method for preparing a non-ferrous metal surface treating agent and belongs to the field of metal surface treatment. The method comprises the preparation steps: (a) weighing and mixing sodium polyacrylate, sodium pyrophosphate, carboxymethyl cellulose and sodium dodecyl sulfonate, adding deionized water, uniformly stirring, heating to the temperature of 45 DEG C while stirring, and carrying out heat preservation for 30 minutes, so as to obtain a solution; (b) cooling the solution obtained in the step (a) to the temperature of 25 DEG C, adding chitosan and alumina, and stirring for 20 minutes, so as to obtain a solution; (c) adding acetic acid and triethanolamine into the solution obtained in the step (b), and uniformly stirring, thereby obtaining the non-ferrous metal surface treating agent. Through treating the surface of metal by using the non-ferrous metal surface treating agent, the metal can be effectively prevented from oxidation and corrosion, and the surface of the metal can be kept bright; the non-ferrous metal surface treating agent is pollution-free to environment, is degradable, is low in cost and safe in use, and is beneficial to very good popularization.

Description

technical field [0001] The invention belongs to the field of metal surface treatment, and in particular relates to a preparation method of a nonferrous metal surface treatment agent. Background technique [0002] Different degrees of oxidation and corrosion often occur in the process of metal processing, handling and use, which reduces the service life of metal materials or metal equipment. Therefore, it is necessary to treat the metal surface to increase its anti-oxidation and anti-corrosion capabilities service life. Coating is a commonly used technology for metal surface treatment. Phosphating during the coating process will produce a large amount of phosphorus-containing wastewater, and it needs to be carried out under strong acid or strong alkaline conditions, which will cause great harm to human health and the environment. Therefore, there is an urgent need for a metal surface treatment agent that does not pollute the environment and does not damage people's health. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/68
CPCC23C22/23
Inventor 颜承龙
Owner 重庆市奉节县宏耀金属制品制造有限公司
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