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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.0c02459
|2 doi
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|a pubmed24n1057.xml
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Cui, Yongjin
|e verfasserin
|4 aut
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|a Determination of Dynamic Interfacial Tension during the Generation of Tiny Droplets in the Liquid-Liquid Jetting Flow Regime
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 17.11.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Liquid-liquid dispersion coupled with droplet formation and mass transfer of surfactants is one of the most typical phenomena in many chemical processes. As in every aspect of this process, the interfacial tension variation caused by the unsaturated adsorption of surfactants on the droplet surface plays an important role. This article focuses on microdroplet formation and the dynamic interfacial behavior of surfactants in the jetting regime. In a capillary embedded step T-junction device, controllable preparation of monodisperse droplets is achieved, and a correlation for predicting droplet sizes is established. A method for measuring the dynamic interfacial tension is provided. Mass transfer coefficients are then calculated for Tween 20 during the droplet formation process by a semiempirical correlation. The results indicate that dynamic interfacial tensions are lower than those obtained when the surfactant is adsorbed to equilibrium. Based on the tip-streaming phenomenon, mass transfer coefficients for Tween 20 can reach up to ∼10-3 m/s, higher than those obtained in coaxial microfluidic devices. All the preliminary results shed light on the nature of droplet formation and will be of significance for application in industrial apparatuses
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|a Journal Article
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|a Li, Yankai
|e verfasserin
|4 aut
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1 |
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|a Wang, Kai
|e verfasserin
|4 aut
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| 700 |
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|a Deng, Jian
|e verfasserin
|4 aut
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| 700 |
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|a Luo, Guangsheng
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 36(2020), 45 vom: 17. Nov., Seite 13633-13641
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:36
|g year:2020
|g number:45
|g day:17
|g month:11
|g pages:13633-13641
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|u http://dx.doi.org/10.1021/acs.langmuir.0c02459
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