Superhydrophobic Aluminium Surface with Anti-Corrosion and Antimicrobial Effect

Superhydrophobicity is a property where water forms a spherical shape due to the surface tension of the substrate, which improves the properties of materials. The research aimed to investigate the preparation of a superhydrophobic aluminium surface with good corrosion resistance and self-cleaning properties. We investigated the influence of the surface roughness after etching with CuCl2 and the influence of the perfluorosilane molecule on superhydrophobicity. The results confirmed that the superhydrophobic surface prepared by an optimal etching process in CuCl2 and modification with perfluorosilane exhibits better anti-corrosion resistance than polished aluminium. The surface reflected the self-cleaning and antimicrobial ability.