Superhydrophobicity frommicrostructured surface  

作　　者：ZHENGLijun WUXuedong LOUZeng WUDan 

机构地区：[1]SchoolofChemistryandChemicalTechnology,ShanghaiJiaotongUniversity,Shanghai200240,China

出　　处：《Chinese Science Bulletin》2004年第17期1779-1787,共9页

摘　　要：Superhydrophobicity is referred to the wet- tability of a solid surface which has a water apparent contact angle greater than 150 . It has attracted great interest in both fundamental researches and practical applications. This pa- per discusses two models: Wenzel model and Cassie model, to describe the superhydrophobic states of surface. The ef- fects of surface morphology and microstructure on superhy- drophobicity are discussed, and the internal relationship between Wenzel and Cassie states is presented. These two superhydrophobic states can coexist and they present differ- ent properties on contact angle hysteresis. It is reported that the irreversible transition can be realized from Cassie state to Wenzel state under some certain conditions. This paper also gives a review of recent progresses in the strategies of fabricating superhydrophobic surfaces by designing micro- structured or microtextured surfaces. Finally, the funda- mental research and applications of superhydrophobic sur- faces are prospected.Superhydrophobicity is referred to the wet- tability of a solid surface which has a water apparent contact angle greater than 150 . It has attracted great interest in both fundamental researches and practical applications. This pa- per discusses two models: Wenzel model and Cassie model, to describe the superhydrophobic states of surface. The ef- fects of surface morphology and microstructure on superhy- drophobicity are discussed, and the internal relationship between Wenzel and Cassie states is presented. These two superhydrophobic states can coexist and they present differ- ent properties on contact angle hysteresis. It is reported that the irreversible transition can be realized from Cassie state to Wenzel state under some certain conditions. This paper also gives a review of recent progresses in the strategies of fabricating superhydrophobic surfaces by designing micro- structured or microtextured surfaces. Finally, the funda- mental research and applications of superhydrophobic sur- faces are prospected.

关 键 词：超疏水性 微结构表面 自清洁 接触角 粗糙度 表面化学 

分 类 号：O647.11[理学—物理化学]