Nanocoating: Anti-icing superamphiphobic surface on 1060 aluminum alloy mesh

摘要

The superamphiphobic 1060 aluminum alloy mesh with nano-villus coating on surface was prepared by chemical micro-engraving method. NaOH solution was used to form micro-sized roughness on the mesh substrate, and PFMS (1H, 1H, 2H, 2H-perfluoroalkyltrimethoxysilane) was used to reduce the surface energy of the mesh matrix and combined with -OH on the surface to form nanocoating of superamphiphobicity. When water was used as test liquid, the contact angle on the surface was 158 degrees, and glycerol was used as test liquid, the contact angle on the surface was 163 degrees. In order to test the performance of superamphiphobic surface, the experiments of ice resistance, corrosion resistance, self-cleaning and wear resistance were carried out in this paper. The experimental results show that the superamphiphobic aluminum alloy mesh with nanocoating has excellent anti-icing performance at -18 degrees C for the first 26 h, good corrosion and wearing resistance. It can replace the traditional aluminum material in low temperature environment to ensure the normal operation of precision electronic devices.