从自然到仿生的超疏水纳米界面材料 - 现代科学仪器.pdfVIP

从自然到仿生的超疏水纳米界面材料 江　雷 (中国科学院纳米科技中心, 中国科学院化学所分子科学中心　北京　100080) E-mail:jianglei@ 　　一种接触角大于150 ℃的超疏水表面, 已 在基础研究和实际应用领域 引起了人们的广泛关注。日前 一些关于荷叶和水稻叶的研究显示, 一种具有较大接触角和较小滚动角的超疏水表面, 需要结合微米和纳米级的结 构, 而且表面微观结构的组成方式会影响水滴的移动性。这些来自自然界的研究成果将为人们构建人工疏水表面和 设计可控湿度的界面提供指导。 据此, 人们已组装得到了纳米纤维聚合体的疏水表面和不同模型的碳纳米管簇薄 膜。 　超疏水;阵列碳纳米管;纳米纤维;浸润性 　TB383 Super-hydrophobic Surfaces From Natural to Artificial Jiang Lei (Center of Molecular Sciences, Institute of Chemistry, C S, Beijing 100080,China) Abstract 　Super-hydrophobic surfaces, with a water contact angle (C )greater than 150°, have attracted much interest for both fundamental research andpractical applications.Recent studieson lotusand rice leaves reveal that a su- per-hydrophobic surface with both a large C and small sliding angle(α)needs the cooperation of micro-and nanostruc- tures, and the arrangement of the microstructures on this surface can influence the way a water droplet tends to move. These results from the naturalworld provide a guide for constructing artificial super-hydrophobic surfaces and designing surfaceswith controllable wettability.ccordingly, super-hydrophobic surfaces of polymer nanofibersand differently pat- terned aligned carbon nanotube (CNT)films have been fabricated. Key words　Super-hydrophobic;aligned carbon nanotube (CNT);nanofibers;wettability , (90°) 1 　引　言 ; 。,。 , , (KD, ) [1] [6] 。 ,(PTFE)(PP) [7] TiO2 () , [2]