Superoleophobicity under vacuum

Xinjie Liu; Xiaolong Wang; Yongmin Liang; Steven E.J. Bell; Weimin Liu; Feng Zhou

doi:10.1063/1.3589352

Superoleophobicity under vacuum

Xinjie Liu
, Xiaolong Wang
, Yongmin Liang
, Steven E.J. Bell
, Weimin Liu
, Feng Zhou

CAS - Lanzhou Institute of Chemical Physics
University of Chinese Academy of Sciences
Queen's University Belfast

科研成果: 期刊稿件 › 文章 › 同行评审

14 引用（Scopus）

摘要

By using superoleophobic alumina and low vapor pressure oils we have been able to study wetting behavior at high vacuum. Here, we show that a superoleophobic state can exist for some probe liquids, even under high vacuum. However, with other liquids the surfaces are only superoloephobic because air is trapped beneath the droplet and the contact angle decreases dramatically (150°-120°) if this air is removed. These observations open up the possibility of designing materials which fully exploit the potential of physically trapped air to achieve extreme oleophobicity and/or hydrophobicity.

源语言	英语
期刊论文编号	194102
期刊	Applied Physics Letters
卷	98
期	19
DOI	https://doi.org/10.1063/1.3589352
出版状态	已出版 - 9 5月 2011
已对外发布	是

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abstract = "By using superoleophobic alumina and low vapor pressure oils we have been able to study wetting behavior at high vacuum. Here, we show that a superoleophobic state can exist for some probe liquids, even under high vacuum. However, with other liquids the surfaces are only superoloephobic because air is trapped beneath the droplet and the contact angle decreases dramatically (150°-120°) if this air is removed. These observations open up the possibility of designing materials which fully exploit the potential of physically trapped air to achieve extreme oleophobicity and/or hydrophobicity.",

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AU - Wang, Xiaolong

AU - Liang, Yongmin

AU - Bell, Steven E.J.

AU - Liu, Weimin

AU - Zhou, Feng

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AB - By using superoleophobic alumina and low vapor pressure oils we have been able to study wetting behavior at high vacuum. Here, we show that a superoleophobic state can exist for some probe liquids, even under high vacuum. However, with other liquids the surfaces are only superoloephobic because air is trapped beneath the droplet and the contact angle decreases dramatically (150°-120°) if this air is removed. These observations open up the possibility of designing materials which fully exploit the potential of physically trapped air to achieve extreme oleophobicity and/or hydrophobicity.

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ER -

Superoleophobicity under vacuum

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