A dewetting model for double-emulsion droplets

Zhanxiao Kang, Pingan Zhu, Tiantian Kong, Liqiu Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)


The evolution of double-emulsion droplets is of great importance for the application of microdroplets and microparticles. We study the driving force of the dewetting process, the equilibrium configuration and the dewetting time of double-emulsion droplets. Through energy analysis, we find that the equilibrium configuration of a partial engulfed droplet depends on a dimensionless interfacial tension determined by the three relevant interfacial tensions, and the engulfing part of the inner phase becomes larger as the volume of the outer phase increases. By introducing a dewetting boundary, the dewetting time can be calculated by balancing the driving force, caused by interfacial tensions, and the viscous force. Without considering the momentum change of the continuous phase, the dewetting time is an increasing function against the viscosity of the outer phase and the volume ratio between the outer phase and inner phase..

Original languageEnglish
Article number196
Issue number11
Publication statusPublished - 1 Nov 2016
Externally publishedYes


  • Dewetting force
  • Dewetting time
  • Double emulsion
  • Equilibrium configuration

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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