Phys.org  October 18, 2022 Fragile hierarchical structures, fluorine-containing chemicals usage, and strict requirements for substrate scopes in biomimetic superhydrophobic coating remain thorny challenges. Researchers in China constructed a mechanical robust superhydrophobic ZnO@STA@PDMS coating with fluorine-free reagents through wide-applicable and substrate-independent spray-coating method. Different analyses and contact angle meter were used to assess the surface micro-nano structures, chemical compositions, thermal stability, and wettability variations. The corrosion resistance of the coating was reduced by two orders of magnitude after being spray-coated with superhydrophobic ZnO@STA@PDMS indicating excellent corrosion resistance in marine submerged zone. In simulated marine atmospheric conditions with high relative humidity, the […]