On the Successful Encapsulation of Water Droplets into Oil Droplets

Xiaodong Chen, Yingnan Sun, Chundong Xue, Yude Yu, Guoqing Hu*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Compound water-in-oil microdroplets can serve as microreactors in chemical and biological analyses. The inkjet printing is a useful technique to generate compound microdroplets by droplet impact. To understand the underlying physics during the droplet impact, a combined experimental and numerical study is carried out. The effect of spreading condition, impact velocity, and oil viscosity are investigated. The balance of the tripe-line among the three interfaces dominates primarily the stable morphology of the compound droplet. Reducing oil viscosity can reduce the required impact velocity. High impact velocity is necessary to reduce the side-slipping of the water droplet.

Original languageEnglish
Pages (from-to)725-729
Number of pages5
JournalProcedia Engineering
Volume126
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event7th International Conference on Fluid Mechanics, ICFM 2015 - Qingdao, China
Duration: 24 May 201527 May 2015

Keywords

  • Droplet impact
  • inkjet printing
  • microdroplet
  • spreading
  • triple-line

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