中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Tip Geometry Controls Adhesive States of Superhydrophobic Surfaces

文献类型:期刊论文

作者Cheng, Zhongjun; Gao, Jun; Jiang, Lei
刊名LANGMUIR
出版日期2010-06-01
卷号26期号:11页码:8233-8238
ISSN号0743-7463
DOI10.1021/la904510n
英文摘要Inspired by biological attachment systems, aligned polystyrene (PS) nanopillars terminating in flat, concave tips and nanotubes were fabricated by a simple and reproducible method. All the obtained surfaces show both the contact angles larger than 150 degrees (superhydrophobicity) and high adhesion of water to it. The tip geometry plays an important role in determining the adhesive property. Surface with the concave tips has the highest adhesion, and then the surface with flat tips, whereas aligned nanotube surface has a relatively lower adhesion. Besides different van der Waals forces between the PS surfaces and water, another important factor, i.e., different negative pressures produced by the different volumes of sealed air, may be the crucial factor for their different adhesions. These findings provide the experimental evidence of the influence of the tip geometry on the adhesion of structured superhydrophobic surfaces, which is helpful for us to further understand the biological attachment systems and to optimum design of artificial analogues.
语种英语
WOS记录号WOS:000277928100077
出版者AMER CHEMICAL SOC
源URL[http://ir.iccas.ac.cn/handle/121111/70901]  
专题中国科学院化学研究所
通讯作者Jiang, Lei
作者单位Chinese Acad Sci, Ctr Mol Sci, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式
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Cheng, Zhongjun,Gao, Jun,Jiang, Lei. Tip Geometry Controls Adhesive States of Superhydrophobic Surfaces[J]. LANGMUIR,2010,26(11):8233-8238.
APA Cheng, Zhongjun,Gao, Jun,&Jiang, Lei.(2010).Tip Geometry Controls Adhesive States of Superhydrophobic Surfaces.LANGMUIR,26(11),8233-8238.
MLA Cheng, Zhongjun,et al."Tip Geometry Controls Adhesive States of Superhydrophobic Surfaces".LANGMUIR 26.11(2010):8233-8238.

入库方式: OAI收割

来源:化学研究所

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