中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心知识库

Superhydrophobic materials have gathered great attention due to its great commercial potential. However, the low stability of coatings is a major challenge for applications. Here, a superhydrophobic coating with mechanical stability and corrosion resistance was obtained by using spray-coating method. We combine micro-scale roughness with low surface energy (18.5 mN m^-1) to create a durable hierarchical structure with critical transition pressure of 570 Pa. Interestingly, the as-prepared superhydrophobic coating exhibited good mechanical stability and corrosion resistance. Importantly, various substrates could be used for spray coating. When applied superhydrophobic coating on copper surface, corrosion resistance property was achieved. The present study provides a simple method to produce multifunctional surface.