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A superhydrophobic coating is a nanoscopic surface layer that repels water. Droplet hitting on this kind of coating can fully rebound in the shape of column 〔Richard, Denis, Christophe Clanet, and David Quéré. "Surface phenomena: Contact time of a bouncing drop." Nature 417.6891 (2002): 811-811〕 or pancake.〔Yahua Liu, Lisa Moevius, Xinpeng Xu,Tiezheng Qian, Julia M Yeomans, Zuankai Wang. "Pancake bouncing on superhydrophobic surfaces." Nature Physics, 10, 515-519 (2014)〕 ==Makeup== Superhydrophobic coating can be made from many different materials. The following are known possible bases for the coating: * Manganese oxide polystyrene (MnO2/PS) nano-composite * Zinc oxide polystyrene (ZnO/PS) nano-composite * Precipitated calcium carbonate * Carbon nano-tube structures * Silica nano-coating The silica-based coatings are perhaps the most cost effective to use. They are gel-based and can be easily applied either by dipping the object into the gel or via aerosol spray. In contrast, the oxide polystyrene composites are more durable than the gel-based coatings, however the process of applying the coating is much more involved and costly. Carbon nano-tubes are also expensive and difficult to produce at this point in time. Thus, the silica-based gels remain the most economically viable option at present. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「superhydrophobic coating」の詳細全文を読む スポンサード リンク
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