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

Compared to superhydrophobic surfaces, superamphiphobic surfaces possess more potential applications but are difficult to fabricate. Herein, to address this problem, we describe a simple method to fabricate a superamphiphobic surface based on a CNTs–SiO₂ hybrid material. The CNTs–SiO₂ hybrid material obtained by a sol–gel approach was sprayed onto glass slides to form coatings. After surface fluorination, the sprayed coating displayed superamphiphobicity toward water and a number of organic liquids, such as dodecane. It was found that the time of fluorination slightly influenced the surface wettability of the sprayed coating. We also investigated the role of CNTs and SiO₂ on superamphiphobicity establishment separately, and such information allowed us to engineer surfaces with specific wettability.