A Dewetting Model for Double-Emulsion Droplets
AbstractThe 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. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Kang, Z.; Zhu, P.; Kong, T.; Wang, L. A Dewetting Model for Double-Emulsion Droplets. Micromachines 2016, 7, 196.
Kang Z, Zhu P, Kong T, Wang L. A Dewetting Model for Double-Emulsion Droplets. Micromachines. 2016; 7(11):196.Chicago/Turabian Style
Kang, Zhanxiao; Zhu, Pingan; Kong, Tiantian; Wang, Liqiu. 2016. "A Dewetting Model for Double-Emulsion Droplets." Micromachines 7, no. 11: 196.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.