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Surface treatment method for improving hydrophobicity of metal surface

A processing method and hydrophobic technology, applied in metal material coating process, coating, solid diffusion coating, etc., can solve the problems of unsuitable continuous production and high cost

Pending Publication Date: 2021-05-07
WUHAN AVIATION INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, chemical corrosion and electroplating are used more, but the existing technology has the characteristics of high cost and unsuitable for continuous production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] On the surface of the glass substrate, a higher temperature and water vapor are passed in the air to form a layer of rough ZrO 2 Oxide film, followed by surface modification with low-surface substances; then the metal surface is placed in a solution composed of 100g / L sulfuric acid and 20g / L trichloride-toluene solution, and soaked at 30°C 8s; then air it until there is no liquid left on the surface, then put it into a solution containing a mixed solution of copper sulfate (12g / L copper ion, 100g / L sulfuric acid) and a small amount of silver ion (about 0.03g / L silver ion) , at 28A / dm at room temperature of 25°C 2 Soak it for 5s, then take it out and spend a little time to dry until there is almost no liquid residue on the surface; then add copper sulfate solution (copper ion 25g / L, sulfuric acid 100g / L) and organic additives (mainly fluorine Soak in a mixed solution of polymethylhydrosilane, 2g / L), in which at 45°C and 15A / dm 2 Soak for 10s under the condition of 2 C...

Embodiment 2

[0025] On the surface of the glass substrate, a higher temperature and water vapor are passed in the air to form a layer of rough ZrO 2 Oxide film, followed by surface modification with low-surface substances; then the metal surface is placed in a solution composed of 110g / L sulfuric acid and 20g / L trichloride-toluene solution, and soaked in an environment of 30°C 8s; then air it until there is no liquid left on the surface, then put it into a solution containing copper sulfate (copper ion 15g / L, sulfuric acid 110g / L) and a small amount of silver ion (about 0.05g / L silver ion) , at 28A / dm at room temperature of 25°C 2 Soak it in the conditions for 5s, then take it out and spend a little time to dry until there is almost no liquid residue on the surface; then add copper sulfate solution (copper ion 30g / L, sulfuric acid 110g / L) and organic additives (mainly fluorine Soak in a mixed solution of polymethylhydrosilane, 3g / L), in which at 45°C and 15A / dm 2 Soak for 10s under the c...

Embodiment 3

[0027] On the surface of the glass substrate, a higher temperature and water vapor are passed in the air to form a layer of rough ZrO 2 Oxide film, followed by surface modification with low-surface substances; then the metal surface is placed in a solution composed of 120g / L sulfuric acid and 20g / L trichloride-toluene solution, and soaked at 30°C 8s; then air it until there is no liquid left on the surface, then put it into a solution containing copper sulfate (copper ion 15g / L, sulfuric acid 120g / L) and a small amount of silver ion (about 0.1g / L silver ion) , at 28A / dm at room temperature of 25°C 2 Soak in the conditions for 5s, then take it out and spend a little time to dry until there is almost no liquid residue on the surface; then add copper sulfate solution (copper ion 35g / L, sulfuric acid 120g / L) and organic additives (mainly fluorine Soak in a mixed solution of polymethylhydrosilane, 3g / L), in which at 45°C and 15A / dm 2 Soak for 10s under the condition of 2 Cr 2 o...

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Abstract

The invention belongs to the technical field of new materials, and relates to a surface treatment method for improving hydrophobicity of a metal surface. The surface treatment method is mainly suitable for being used on a metal surface represented by copper and is used for enhancing the hydrophobicity of the metal surface and enhancing the application of the metal surface in actual conditions. According to the treatment mode, part of an oxidation film is deposited through the evaporation technology, and then the steps of pretreatment, coarsening, anti-oxidation treatment and the like are carried out, so that a hydrophobic surface is formed. The method has the advantages of simple operation, obvious hydrophobic effects, continuous production and the like.

Description

technical field [0001] The invention belongs to the technical field of new materials and relates to a novel surface treatment method for improving the hydrophobicity of metal surfaces. Background technique [0002] Hydrophobicity refers to the ability of the anti-liquid to spread on the solid surface, which is one of the important characteristics of the solid surface. With the development of the times and the progress of science, there are more and more demands for materials with special surface properties in all walks of life, and changes The properties of the material itself are generally difficult to achieve and not universal. Generally speaking, the corresponding surface treatment of the metal surface can make it have certain hydrophobic properties. Generally speaking, there are many treatment methods such as chemical corrosion and electroplating, but the existing technology has the characteristics of high cost and unsuitability for continuous production. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C8/16C23C8/80C25F3/02C23C22/24C23C22/60
CPCC23C8/16C23C8/80C23C22/24C23C22/60C25F3/02
Inventor 刘喆周为吴浩朱建丽
Owner WUHAN AVIATION INSTR
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