Jump to main content
Jump to site search


Escape dynamics of liquid droplets confined between soft interfaces: non-inertial coalescence cascades

Author affiliations

Abstract

We have studied the motion of liquid droplets located in the contact zone of two soft solids that are pressed together inside a liquid. The driving force of the motion is the gradient of elastic contact pressure. Upon reaching the perimeter of the contact spot, the droplets coalesce with the surrounding bulk liquid either in a continuous or discontinuous fashion. Droplets that exhibit complete coalescence move with a speed proportional to the pressure gradient along their trajectory. However, droplets that undergo partial coalescence cascades (up to 9 were observed) do not. The latter also move significantly slower. We have identified surface roughness as a potential mechanism causing the contrasting behavior.

Graphical abstract: Escape dynamics of liquid droplets confined between soft interfaces: non-inertial coalescence cascades

Back to tab navigation

Supplementary files

Article information


Submitted
04 Oct 2019
Accepted
16 Jan 2020
First published
17 Jan 2020

This article is Open Access

Soft Matter, 2020, Advance Article
Article type
Paper

Escape dynamics of liquid droplets confined between soft interfaces: non-inertial coalescence cascades

M. Chudak, J. S. Kwaks, J. H. Snoeijer and A. A. Darhuber, Soft Matter, 2020, Advance Article , DOI: 10.1039/C9SM01992H

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements