Robust superomniphobic surfaces with mushroom-like micropillar arrays

Seong Min Kang; Sang Moon Kim; Hong Nam Kim; Moon Kyu Kwak; Dong Ha Tahk; Kahp Y. Suh

doi:10.1039/c2sm25879j

Robust superomniphobic surfaces with mushroom-like micropillar arrays

Seong Min Kang, Sang Moon Kim, Hong Nam Kim, Moon Kyu Kwak, Dong Ha Tahk, Kahp Y. Suh

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

114 Scopus citations

Abstract

We present a simple method for the fabrication of robust superomniphobic surfaces with high transmittance (>90%) and durability (<6 months). The method consists of direct micromolding of mushroom-like micropillars and C ₄F₈ gas surface treatment. Such re-entrant structures were found to be highly resistant against wetting by various liquids and oils with a wide range of surface tensions from 22.3 (ethanol) to 72.1 mN m^-1 (water). Optimal structural parameters were derived based on the measurements of static contact angle and contact angle hysteresis.

Original language	English
Pages (from-to)	8563-8568
Number of pages	6
Journal	Soft Matter
Volume	8
Issue number	33
DOIs	https://doi.org/10.1039/c2sm25879j
State	Published - 7 Sep 2012

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abstract = "We present a simple method for the fabrication of robust superomniphobic surfaces with high transmittance (>90%) and durability (<6 months). The method consists of direct micromolding of mushroom-like micropillars and C 4F8 gas surface treatment. Such re-entrant structures were found to be highly resistant against wetting by various liquids and oils with a wide range of surface tensions from 22.3 (ethanol) to 72.1 mN m-1 (water). Optimal structural parameters were derived based on the measurements of static contact angle and contact angle hysteresis.",

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AU - Kang, Seong Min

AU - Kim, Sang Moon

AU - Kim, Hong Nam

AU - Kwak, Moon Kyu

AU - Tahk, Dong Ha

AU - Suh, Kahp Y.

PY - 2012/9/7

Y1 - 2012/9/7

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AB - We present a simple method for the fabrication of robust superomniphobic surfaces with high transmittance (>90%) and durability (<6 months). The method consists of direct micromolding of mushroom-like micropillars and C 4F8 gas surface treatment. Such re-entrant structures were found to be highly resistant against wetting by various liquids and oils with a wide range of surface tensions from 22.3 (ethanol) to 72.1 mN m-1 (water). Optimal structural parameters were derived based on the measurements of static contact angle and contact angle hysteresis.

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JO - Soft Matter

JF - Soft Matter

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Robust superomniphobic surfaces with mushroom-like micropillar arrays

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