Biomimetic fabrication of robust self-assembly superhydrophobic surfaces with corrosion resistance properties on stainless steel substrate

摘要: A reed leaf-like superhydrophobic stainless surface is obtained by nanosecond laser direct writing. Through investigating the coupling interaction between fluence and overlapping rate, we fabricate biomimetic structures on steel. This reveal excellent superhydrophobicity with a water contact angle of 157 ± 1° sliding 1 0.5° after FAS-17 (1H,1H,2H,2H-perfluorodecyltriisopropoxysilane) modification. The as-prepared results from its hierarchical micro-nanostructure grafted low-surface-energy fluorosilane. exhibits high microhardness mechanical abrasion resistance. It can maintain sandpaper against 260 grit Al2O3 for 2.5 m at applied pressure 12.5 kPa. Moreover, has good chemical stability in both acidic alkaline environments. Tafel polarization curves show that better corrosion resistance than bare steel surface. believed this may have important significance practical application.