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Soaking treatment method for oil repellency and antioxidation of copper net or foamy copper

A technology of immersion treatment and foam copper, which is applied in the coating process of metal materials, etc., can solve the problems of copper mesh or porous foam copper anti-oil and anti-oxidation treatment, affecting the color and related properties of copper, and pollution of sodium nitrite, etc. Achieve the effect of good anti-oxidation effect, prevent oxidation and discoloration, and simple equipment

Inactive Publication Date: 2013-05-15
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, methods such as electroplating, chemical plating, oil spraying, painting, and passivation are also commonly used for copper surface treatment, but the cost of electroplating, chemical plating, oil spraying, and painting is high, which affects the color and related properties of copper, and passivation products will appear Color difference, anti-oxidation time is not long, and the passivation agent sodium nitrite is polluted, not environmentally friendly
Not only that, these methods are not suitable for the oil-proof and anti-oxidation treatment of copper mesh or foamed copper, and the oil-proof and anti-oxidation treatment of copper mesh or porous copper foam is still a problem

Method used

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  • Soaking treatment method for oil repellency and antioxidation of copper net or foamy copper

Examples

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Effect test

Embodiment 1

[0017] (1) Soak copper mesh or copper foam in a mixed solution of hydrochloric acid, surfactant, fluorosilane and ethanol, the heating temperature of the water bath is 30°C, the soaking time is 30min, and the concentration of hydrochloric acid in the mixed solution is 2.0mol / L, the surfactant sodium dodecylbenzenesulfonate is 2g / L, and the concentration of fluorosilane is 1g / L;

[0018] (2) Wash the soaked copper mesh or copper foam with deionized water, put it in an oven, solidify at 150°C for 1.5h, take it out and cool it.

[0019] Through the above-mentioned one-step soaking treatment, the original oxide skin on the copper tendons of the copper mesh foam is effectively removed. The oxidation of the copper mesh is very serious before the treatment. The copper mesh after treatment is very smooth, and the oxide skin on the surface peels off and can form a protective film. Copper foam is oxidized seriously before treatment, and it is very smooth after treatment, and forms a th...

Embodiment 2

[0021] (1) Soak copper mesh or copper foam in a mixed solution of hydrochloric acid, surfactant, fluorosilane and ethanol, the heating temperature of the water bath is 90°C, the soaking time is 5min, and the concentration of hydrochloric acid in the mixed solution is 1.0mol / L, the surfactant sodium dodecylbenzene sulfonate is 5g / L, and the concentration of fluorosilane is 3g / L;

[0022] (2) Wash the soaked copper mesh or copper foam with deionized water, put it in an oven, and cure it at 250°C for 0.5h, take it out and cool it, and you can get a bright oil-resistant and anti-oxidation copper mesh or foam copper.

Embodiment 3

[0024] (1) Soak copper mesh or copper foam in a mixed solution of hydrochloric acid, surfactant, fluorosilane and ethanol, the heating temperature of the water bath is 60°C, the soaking time is 20min, and the concentration of hydrochloric acid in the mixed solution is 1.5mol / L, the surfactant sodium dodecylbenzene sulfonate is 3g / L, and the concentration of fluorosilane is 2g / L;

[0025] (2) Wash the soaked copper mesh or foamed copper with deionized water, put it in an oven, solidify at 200°C for 1 hour, take it out and cool it, and then you can get a bright oil-proof and anti-oxidation copper mesh or foamed copper .

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Abstract

The invention discloses a soaking treatment method for oil repellency and antioxidation of a copper net or foamy copper. The soaking treatment method comprises the following steps of: soaking the copper net or the foamy copper in a mixed solution including the components of 1.0mol / L-2.0mol / L of hydrochloric acid, 2g / L-5g / L of a surfactant, 1g / L-3g / L of fluorosilane and alcohol in concentration, wherein the water-bath heating temperature is 30 DEG C to 90 DEG C, the soaking time is 5 minutes to 30 minutes; washing the soaked and treated copper net or foamy copper by deionized water, and putting the washed copper net or foamy copper to an oven for curing for 0.5 hour to 1.5 hours under the temperature of 150 DEG C to 250 DEG C; and taking out the cured copper net or foamy copper to obtain the bright oil-repellent anti-oxidant copper net or foamy copper. The soaking treatment method disclosed by the invention can be used for effectively preventing the formation of an oxide layer.

Description

technical field [0001] The invention relates to a soaking treatment method for oil and oxidation resistance of copper mesh and foamed copper. Background technique [0002] Copper mesh is widely used in industrial filtration, petroleum, chemical, printing and other industries, while copper foam is a new multifunctional material with a large number of connected or closed holes evenly distributed in the copper matrix, which has the functions of damping, shock absorption, noise reduction, insulation Heat, flame retardant, filtration, air distribution, electromagnetic shielding and other functions, while having a certain mechanical strength, and light weight, heat resistance, corrosion resistance, large specific surface area, high chemical and electrochemical activity, no aging, etc., can be Widely used in heat dissipation and heat exchange materials for electronic components, phase change energy storage materials, cushioning and shock absorption structural materials, lithium ion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/34C23G1/10
Inventor 余新泉张友法张雯陈锋
Owner SOUTHEAST UNIV
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