Experimental study of double emulsion formation behaviors in a one-step axisymmetric flow-focusing device
Experimental study of double emulsion formation behaviors in a one-step axisymmetric flow-focusing device
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一步式轴对称流聚焦装置中双乳液形成行为的实验研究
DOI:
10.1016/j.expthermflusci.2018.12.032
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发表时间:
2019-05
影响因子:
3.2
通讯作者:
Meifang Liu
中科院分区:
文献类型:
--
作者:
Cheng Yu;Liangyu Wu;Lei Li;Meifang Liu
Formation behaviors of double emulsions in the one-step axisymmetric flow-focusing microfluidic device are studied experimentally based on a visualization system. Typical droplet formation regimes are examined and the effects of the flow rates on droplet sizes and morphologies are discussed. Especially, a comparative study of the performance between the flow-focusing and co-flowing device is conducted. The results indicate that the dripping and jetting regimes appear during the double emulsion formation under one-step flow-focusing, in which the dripping regime includes two distinct generation modes namely synchronized dripping and asynchronized dripping. Squeezing from the outer interface leads to the collapse of the inner interface in the synchronized dripping regime. The formation regime, droplet sizes as well as their polydispersities are determined by the flow rate of the outer fluid, while the shell thickness depends on the flow rate ratio between the middle fluid and the inner fluid. Compared with the co-flowing system, deformation of the interfaces is enhanced by the hydrodynamic focusing effect in the flow-focusing system where faster production of double emulsions with smaller sizes is achieved.
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影响因子:
24.2
作者:
Shah, Rhutesh K.;Shum, Ho Cheung;Weitz, David A.
通讯作者:
Weitz, David A.
DOI:
10.1016/j.ijheatmasstransfer.2015.11.012
发表时间:
2016-03
影响因子:
5.2
作者:
Sun Dong-Ke;Wang Yong;Dong An-Ping;Sun Bao-De
通讯作者:
Sun Bao-De
影响因子:
6.1
作者:
Abate, Adam R.;Thiele, Julian;Weitz, David A.
通讯作者:
Weitz, David A.
DOI:
10.1007/978-3-642-27758-0
发表时间:
2014-08
期刊:
--
影响因子:
--
作者:
احسان روحی گل خطمی
通讯作者:
احسان روحی گل خطمی
影响因子:
13.3
作者:
Abate, A. R.;Weitz, D. A.
通讯作者:
Weitz, D. A.