Fluorine-free fabrication of robust self-cleaning and anti-corrosion superhydrophobic coating with photocatalytic function for enhanced anti-biofouling property

Here, a fluorine-free robust superhydrophobic coating was fabricated on the Al alloy substrate by simple and low-cost approach. Embed modified TiO2 nanoparticles onto semi-cured epoxy resin adhesive layer prominently reduces content of low-energy materials (stearic acid) coating. This prepared with hierarchical structures, re-entrant structures low surface energy shows superhydrophobic. The excellent high impalement pressure even water droplets velocity 3.43 m/s. also exhibits stability after different tests noticeable enhancement strength compared without resin. Moreover, this presents enhanced durability verified sandpaper abrasion decreased friction coefficient wear test. It moreover enabled self-cleaning property. promising anti-corrosion property in both corrosion solution salt spray substrate. Notably, combined photocatalytic function improves anti-biofouling due to superhydrophobicity reducing organic bacterial adhesion photocatalysis providing degradation preventing adhesion. multifunctional properties can be applied functionalize various solid surfaces.