Water impacting on superhydrophobic macrotextures - École polytechnique Access content directly
Journal Articles Nature Communications Year : 2015

Water impacting on superhydrophobic macrotextures


It has been recently shown that the presence of macrotextures on superhydrophobic materials can markedly modify the dynamics of water impacting them, and in particular significantly reduce the contact time of bouncing drops, compared with what is observed on a flat surface. This finding constitutes a significant step in the maximization of water repellency, since it enables to minimize even further the contact between solid and liquid. It also opens a new axis of research on the design of super-structures to induce specific functions such as anti-freezing, liquid fragmentation and/or recomposition, guiding, trapping and so on. Here we show that the contact time of drops bouncing on a repellent macrotexture takes discrete values when varying the impact speed. This allows us to propose a quantitative analysis of the reduction of contact time and thus to understand how and why macrotextures can control the dynamical properties of bouncing drops.
Fichier principal
Vignette du fichier
ncomms9001.pdf (3.03 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-01214327 , version 1 (12-10-2015)



Anaïs Gauthier, Sean Symon, Christophe Clanet, David Quéré. Water impacting on superhydrophobic macrotextures. Nature Communications, 2015, 6, pp.8001. ⟨10.1038/ncomms9001⟩. ⟨hal-01214327⟩
361 View
213 Download



Gmail Facebook X LinkedIn More