New mathematical model for electrostatic stability of the Cassie state on MEMS-based pillared surface

Ki Young Song*, Kenichi Morimoto, Yuji Suzuki

*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

A new mathematical model of the collapse of Cassie state of a liquid droplet has been developed incorporating the pinning force under electric fields. The effect of the pitch of MEMS-based pillared surfaces upon the electrostatic stability is systematically investigated for development of high-speed droplet manipulation devices to sustain the Cassie state. Our new model is found to be in good agreement with present experiment results quantitatively, whereas the conventional model fails to reproduce the electrostatic stability.

Original languageEnglish
Title of host publication17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
PublisherChemical and Biological Microsystems Society
Pages714-716
Number of pages3
ISBN (Print)9781632666246
Publication statusPublished - 2013
Externally publishedYes
Event17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013 - Freiburg, Germany
Duration: 27 Oct 201331 Oct 2013

Publication series

Name17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
Volume2

Conference

Conference17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
Country/TerritoryGermany
CityFreiburg
Period27/10/1331/10/13

Keywords

  • Cassie state
  • Electrostatic stability
  • Pillared surface
  • Superhydrophobicity

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