Lubricant-infused micro/nano-structured surfaces with tunable dynamic omniphobicity at high temperatures
Open Access
- 10 June 2013
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 102 (23), 231603
- https://doi.org/10.1063/1.4810907
Abstract
Omniphobic surfaces that can repel fluids at temperatures higher than 100 °C are rare. Most state-of-the-art liquid-repellent materials are based on the lotus effect, where a thin air layer is maintained throughout micro/nanotextures leading to high mobility of liquids. However, such behavior eventually fails at elevated temperatures when the surface tension of test liquids decreases significantly. Here, we demonstrate a class of lubricant-infused structured surfaces that can maintain a robust omniphobic state even for low-surface-tension liquids at temperatures up to at least 200 °C. We also demonstrate how liquid mobility on such surfaces can be tuned by a factor of 1000.Keywords
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