Size effects of surface roughness to superhydrophobicity

Quanshui Zheng, Cunjing Lv

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

45 Citations (Scopus)


Water droplets placed on a superhydrophobic surface act like soft balls that can easily deform, roll and bounce, leading to various novel behaviors such as self-cleaning and anti-icing. Thousands of plant and animal species have been observed to have superhydrophobic surfaces and all these surfaces seem to have roughness sizes in the micro-submicron range. The classical models don not predict this kind of specified size phenomenon. Here we review some recent findings, which show that scaling down the surface roughness into the micro-submicron range is a unique and elegant strategy to not only achieve superhydrophobicity, but also increase its stability against environmental disturbances. We further demonstrate that these findings can guide fabrication of stable and extreme liquid-repellant surfaces.
Original languageEnglish
Title of host publicationProcedia IUTAM
EditorsYilong Bai, Jianxiang Wang, Daining Fang
Place of PublicationAmsterdam Netherlands
Number of pages14
Publication statusPublished - 2014
Externally publishedYes
EventInternational Congress of Theoretical and Applied Mechanics 2012 - Beijing, China
Duration: 19 Aug 201224 Aug 2012
Conference number: 23rd

Publication series

NameProcedia IUTAM
ISSN (Electronic)2210-9838


ConferenceInternational Congress of Theoretical and Applied Mechanics 2012
Abbreviated titleICTAM 2012
OtherThe Proceedings, entitled “Mechanics for the World” and edited by Y. Bai, J. Wang and D. Fang, have been published by Procedia IUTAM, 2014.
Internet address

Cite this