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

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12 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
文章编号	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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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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Superoleophobicity under vacuum

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