Affordable Access

Publisher Website

Electric field induced deformation of hemispherical sessile droplets of ionic liquid

Authors
Journal
Journal of Electrostatics
0304-3886
Publisher
Elsevier
Identifiers
DOI: 10.1016/j.elstat.2014.08.004
Keywords
  • Wetting
  • Contact Angle
  • Ionic Liquid
  • Electrostatic Field
  • Parallel Plate Capacitor

Abstract

Abstract Sessile droplets of an ionic liquid with contact angles close to 90° were subjected to an electric field E = V/w inside a capacitor with plate separation w and potential difference V. For small field induced deformations of the droplet shape the change in maximum droplet height, Δh = h(E) – h(0), was found to be virtually independent of the plate separation provided that w > 3h(0). In this regime a scaling law obtains Δh α E2r2, where r is the constant droplet radius, in agreement with the asymptotic predictions of Basaran and Scriven (J. Coll. Int. Sci. 140, 10, 1990).

There are no comments yet on this publication. Be the first to share your thoughts.