关键词: 表面, 超疏水, 自修复, 耐磨性, 微纳粗糙结构, 低表面能物质

Abstract:

Superhydrophobic surfaces have attracted tremendous attention due to their special wettability and wide application. However, superhydrophobic surfaces are highly susceptible to mechanical or chemical attack, resulting in loss of low surface energy substances or destruction of hierarchical micro/nanostructures, and eventually the loss of superhydrophobicity. Therefore, it is still a big challenge to construct a durable superhydrophobic coating in the field of superhydrophobic. In this paper, the recent progress of abrasive resistance and self-healing superhydrophobic surfaces were summarized. Firstly, the methods for improving abrasive resistance of superhydrophobic surface were concluded from forming covalent bonds, introducing elastic materials and using substrate surface to construct hierarchical micro/nanostructures. Secondly, the ways for endowing self-healing function to superhydrophobic coatings were reviewed from releasing low surface energy substances, regenerating topographic structures and bulk self-healing. Moreover, the industrialization status of durable superhydrophobic surface was discussed. Finally, the future research and development of durable superhydrophobic surfaces were also prospected in order to provide references for fabrication of durable superhydrophobic surfaces for widespread applications.

Key words: surface, superhydrophobic, self-healing, abrasive resistance, hierarchical micro/nanostructures, low surface energy substances