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Preservative solution use for copper and copper alloy surface, preparation method and application

A technology of copper alloy and anti-corrosion liquid, applied in anti-corrosion coatings, coatings, etc., can solve the problems of reducing the heat resistance of coatings, and achieve good scratch resistance, high cross-linking density, and improved heat resistance.

Active Publication Date: 2013-01-30
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although a thick coating for copper protection can be obtained by these two compositions, due to the introduction of a large amount of organic components at the same time, the heat resistance of the coating is reduced

Method used

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  • Preservative solution use for copper and copper alloy surface, preparation method and application
  • Preservative solution use for copper and copper alloy surface, preparation method and application
  • Preservative solution use for copper and copper alloy surface, preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0038]In this example, the anti-corrosion liquid used on the surface of copper and copper alloys is produced by the reaction of mercaptopropyltrimethoxysilane and tetraethoxysilane in ethanol solvent under the condition of hydrolysis catalyst solution: formic acid aqueous solution with pH=3 The hydrolyzate; wherein, the mass ratio of mercaptopropyltrimethoxysilane to tetraethoxysilane is 588:208.

[0039] The preparation process of above-mentioned preservative liquid is as follows:

[0040] Add 588g of mercaptopropyltrimethoxysilane, 208g of tetraethoxysilane, and 1000g of ethanol to a flask equipped with a mechanical stirrer, and add 540g of hydrolysis catalyst solution under stirring conditions: formic acid aqueous solution with pH=3 to make the reaction system A hydrolysis reaction occurred in the reaction, after the reaction was completed, it was stirred at room temperature for 5 h, and a clear solution was obtained after standing still.

Embodiment 2

[0042] In the present embodiment, the anticorrosion solution used for copper and copper alloy surfaces is basically the same as the anticorrosion solution in Example 1, the difference is: the quality of mercaptopropyltrimethoxysilane and tetraethoxysilane in the present embodiment The ratio is 392:208.

[0043] The preparation method of the above-mentioned anticorrosion liquid in the present embodiment is basically the same as the preparation method of the anticorrosion liquid in Example 1, the difference is: 392g mercaptopropyltrimethoxysilane, 208g tetraethoxysilane and 1000g ethanol are added Carry out the hydrolysis reaction in a flask equipped with a mechanical stirrer.

Embodiment 3

[0045] In the present embodiment, the anticorrosion solution used for copper and copper alloy surfaces is basically the same as the anticorrosion solution in Example 1, the difference is: the quality of mercaptopropyltrimethoxysilane and tetraethoxysilane in the present embodiment The ratio is 196:208.

[0046] The preparation method of the above-mentioned anticorrosion liquid in the present embodiment is basically the same as the preparation method of the anticorrosion liquid in Example 1, the difference is: 196g mercaptopropyltrimethoxysilane, 208g tetraethoxysilane and 1000g ethanol are added Carry out the hydrolysis reaction in a flask equipped with a mechanical stirrer.

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Abstract

The invention discloses a preservative solution use for copper and a copper alloy surface, the preservative solution dissolves mercaptoalkyl alkoxy silane and alkoxy silane in an organic solvent, and a hydrolysis reaction is carried out under the catalytic effect of hydrolysis catalytic solution to obtain a hydrolysis product. Compared with the prior art, anticorrosive coatings formed by the preservative solution on copper and the copper alloy surface have good anticorrosive effect, scratch resistance performance and heat-resistant performance, and the preservative solution has excellent application prospect.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to an anticorrosion solution for copper and copper alloy surfaces, a preparation method and application thereof. Background technique [0002] Copper and copper alloys are widely used in various industries due to their good thermal conductivity, electrical conductivity, processability, mechanical properties, corrosion resistance and beautiful appearance. However, the corrosion of bare copper / copper alloys in strong corrosive environments such as moisture, acid-base, and electrolyte is a problem that cannot be ignored. In actual use, additional anti-corrosion measures must be applied to obtain good corrosion resistance. At present, electroplating / electroless plating, organic coating, and chromium passivation technology are commonly used anti-corrosion methods. These methods have their own advantages and disadvantages. For example, the electroplating layer...

Claims

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Application Information

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IPC IPC(8): C09D183/08C09D5/08C08G77/28
Inventor 乌学东彭叔森曹慧军
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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