Two recipes for repelling hot water

It has previously been reported that hot drops impacting on a colder surface can lead to loss of surface hydrophobicity unless the surface features are very small. Here the authors find that both small and large features but not intermediate ones are able to preserve hydrophobicity.

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Bibliographic Details
Main Authors: Timothée Mouterde, Pierre Lecointre, Gaëlle Lehoucq, Antonio Checco, Christophe Clanet, David Quéré
Format: article
Language:EN
Published: Nature Portfolio 2019
Subjects:
Q
Online Access:https://doaj.org/article/a8ab1866425d4fc78a569fb65b75cfe2
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Description
Summary:It has previously been reported that hot drops impacting on a colder surface can lead to loss of surface hydrophobicity unless the surface features are very small. Here the authors find that both small and large features but not intermediate ones are able to preserve hydrophobicity.