Method for preparing aluminum-base super-amphiphobic surface

A super-amphiphobic surface and aluminum matrix technology, applied in the field of super-amphiphobic surface preparation, can solve the problems of expensive chemical reagents, low processing efficiency, complex devices, etc., and achieve the effect of good non-sticking, low cost, and good stability

Inactive Publication Date: 2013-03-13
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above methods can process super-amphiphobic surfaces, there are problems such as the use of dangerous or expensive chemical reagents, low processing efficiency, and complicated devices.

Method used

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  • Method for preparing aluminum-base super-amphiphobic surface
  • Method for preparing aluminum-base super-amphiphobic surface
  • Method for preparing aluminum-base super-amphiphobic surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Grind the aluminum plate with 1200# and 2000# sandpaper to remove the oxide layer, degrease with detergent, wash with deionized water and blow dry.

[0022] (2) With an aluminum plate as the anode and a copper plate of the same size as the cathode, place it in 0.1 mol / L NaCl aqueous solution at 500 mA / cm 2 Processing at current density for 6 min. After the electrochemical machining was completed, the aluminum plate was rinsed with deionized water, soaked in boiling water for 40 min, and dried after being taken out.

[0023] (3) Soak the processed aluminum plate in 0.015 mol / L perfluorooctanoic acid aqueous solution for 60 min, take it out and blow dry to obtain the superamphiphobic surface.

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PUM

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Abstract

The invention discloses a method for preparing an aluminum-base super-amphiphobic surface. The method comprises the following steps: polishing aluminum plates, cleaning to remove oil, parallelizing the cleaned aluminum plates as an anode and a cathode, connecting the aluminum plates with a direct current power supply through wires, connecting the aluminum plate to the positive pole of the power supply, connecting the cathode to the negative pole, and putting the aluminum plates in an electrolyte to carry out electrochemical etching; and after the electrochemical processing is finished, soaking the aluminum plate in boiling water for some time, taking out, drying, soaking the aluminum plate in a perfluorocaprylic acid water solution to carry out modification, taking out, and drying to obtain the aluminum-base super-amphiphobic surface. The surface obtained by the method has the characteristics of no water staining and no oil staining, and can be used for resisting staining and corrosion on the aluminum surface.

Description

technical field [0001] The invention belongs to the field of aluminum surface treatment and modification, in particular to a method for preparing a superamphiphobic surface [0002] Law. Background technique [0003] A superamphiphobic surface refers to a surface on which the contact angles of water droplets and oil droplets are both greater than 150°, and the rolling angles are both less than 10°, that is, a surface with both superhydrophobic and superoleophobic properties. Superhydrophobic surfaces have broad application prospects due to their properties such as self-cleaning, drag reduction, corrosion resistance, and anti-icing and frosting. However, the ordinary superhydrophobic surface does not have superoleophobicity. Once the water contains oil, it is easily polluted by oil and loses superhydrophobicity. Therefore, compared with ordinary superhydrophobic surfaces, superamphiphobic surfaces have greater application value. [0004] The preparation method of the super...

Claims

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Application Information

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IPC IPC(8): C25F3/04
Inventor 徐文骥宋金龙刘新陆遥王续跃
Owner DALIAN UNIV OF TECH
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