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Method for acquiring super-double-thinning property on metallic copper or copper alloy backing material surface

A technology of substrate surface, metal copper, applied in the direction of metal material coating process, etc., can solve the problems of easy corrosion, can not function normally, affect the service life of materials, etc., to avoid corrosion, excellent thermal stability and chemical stability , the effect of low equipment requirements

Inactive Publication Date: 2009-07-29
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal copper is very easy to be corroded in a humid environment with oxygen, which affects the service life of the material, causes it to not function normally, and also brings many unsafe factors to users

Method used

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  • Method for acquiring super-double-thinning property on metallic copper or copper alloy backing material surface
  • Method for acquiring super-double-thinning property on metallic copper or copper alloy backing material surface
  • Method for acquiring super-double-thinning property on metallic copper or copper alloy backing material surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Use an ultrasonic cleaner to clean the metal copper substrate. The cleaning steps are: put the copper substrate in acetone, deionized water, and ethanol in order to clean it with ultrasonic waves for 5 minutes each to remove the grease and other pollutants on the surface;

[0023] 2. Put the treated copper substrate into the concentration of 0.02mol / L perfluorinated acid (CF 3 (CF 2 ) 8 COOH) soaking in methanol solution;

[0024] 3. After 12 days, take out the copper substrate, rinse it with ethanol and deionized water, and dry it with nitrogen, and finally obtain a film composed of perfluorinated fatty acid copper salt microspheres with a diameter of 2 to 4 microns on the surface of the copper substrate. A superamphiphobic surface is obtained on the surface of the copper substrate. The result is asfigure 1 shown.

Embodiment 2

[0026] 1. Use an ultrasonic cleaner to clean the metal copper substrate. The cleaning steps are: put the metal copper substrate in acetone, deionized water, and ethanol in sequence, and use ultrasonic cleaning for 5 minutes each to remove the grease and other pollutants on the surface;

[0027] 2. Put the treated metal copper substrate into the concentration of 0.01mol / L octacarbon perfluoroacid (CF 3 (CF 2 ) 6 COOH) soaked in acetone solution;

[0028] 3. After 16 days, take out the metal copper substrate, rinse it with ethanol and deionized water, and dry it in the atmosphere, and finally obtain a film composed of perfluorinated fatty acid copper salt microspheres with a diameter of 2 to 4 microns on the surface of the copper substrate , the superamphiphobic surface can be obtained on the surface of metal copper substrate.

Embodiment 3

[0030] 1. Use an ultrasonic cleaner to clean the copper-zinc alloy substrate. The cleaning steps are: put the copper-zinc alloy substrate in acetone, deionized water, and ethanol in sequence and clean it with ultrasonic waves for 5 minutes each to remove the grease and other pollution on the surface. substance;

[0031] 2. Put the treated copper-zinc alloy substrate into the concentration of 0.04mol / L dodecyl perfluoroacid (CF 3 (CF 2 ) 8 COOH) soaked in dichloromethane solution;

[0032] 3. After 18 days, take out the copper-zinc alloy substrate, rinse it with ethanol and deionized water, and dry it in the atmosphere, and finally obtain perfluorinated fatty acid copper salt microspheres with a diameter of 2 to 4 microns on the surface of the copper-zinc alloy substrate The composed film can obtain a super-amphiphobic surface on the surface of the copper-zinc alloy substrate.

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Abstract

The invention relates to corrosion resistance and self cleaning of a metal surface, in particular to the corrosion resistance and self cleaning realized by obtaining super-amphiphobic property on the surface of copper metal and copper alloy. The method is to clean the copper metal, a copper alloy base material or a base material coated by the copper metal on the surface to be immersed in a perfluorinated aliphatic acid organic solvent with concentration of 0.005-0.05mol / L, thereby obtaining a self-cleaning surface with super-dual hydrophobic property on the surface of the copper metal, the copper alloy base material or the base material coated by the metal copper on the surface. The method has simple operation and low requirement on equipment, is not restricted by the shape of the base material, is also applicable to surface treatment of a finished product and a semi-finished product workpiece, and is easy to realize industrialization. The method can be widely applied to each department of national production and living, such as machinery, shipbuilding, electric power, military, building, kitchenware and the like, and has wide practical value.

Description

technical field [0001] The invention relates to the anticorrosion and self-cleaning of the metal surface, specifically refers to the realization by obtaining the super-amphiphobic property on the surface of metal copper and its alloy. A superamphiphobic surface is a surface with special wettability, which is defined as both superhydrophobic and superoleophobic. The theory stipulates that the contact angle of the solid surface to water and oil is greater than 150°, and has a small rolling angle so that water droplets And oil droplets can roll on solid surfaces. Background technique [0002] The self-cleaning property of metals has also been the focus of discussion, especially the cleaning of high-altitude building surfaces that are not easy to clean manually. In recent years, there have been literature and patent reports using the method of preparing super-hydrophobic surface to reduce the contact between metal surface and water, so as to realize metal anti-corrosion and sel...

Claims

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Application Information

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IPC IPC(8): C23C22/02C23G1/00C23C22/77C23C22/78
Inventor 郗金明孟海凤江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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