Fabrication and Application of Patterned Superhydrophobic Surface

• Main Authors: Chan-Chih Hsu, 許展志
• Other Authors: Hou-Kuang Chen
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/09065926484162546714

碩士 === 義守大學 === 材料科學與工程學系 === 104 === Superhydrophobic surfaces have attracted much interest because of the potential applications in many industrial processes as well as in daily life. Combining surface roughness on both the micro- and nanoscales with a low-surface-energy material is the key to obtaining superhydrophobicity. The superhydrophobic surfaces with anisotropic wetting phenomena have also drawn a great amount of attention recently. In this paper, we present a simple method for realizing anisotropic wettability and for controlling the mobility of microliter-sized droplets on superhydrophobic Al alloys. A designed path line is created on the prepared superhydrophobic surface using a laser irradiation process. We achieved both static anisotropic wettabilities (e.g., different static contact angles in different directions) and dynamic anisotropic wettabilities (different sliding angles in different directions) on the patterned superhydrophobic surface. The micro-liter droplets move spontaneously toward a preset route on our patterned superhydrophobic surface. Furthermore, the use of commercially available raw materials and the simple fabrication process makes it possible to apply such surfaces industrial applications.