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Micromachines 2018, 9(5), 248;

Micro Droplet Formation towards Continuous Nanoparticles Synthesis

Faculty of Non-Ferrous Metals, AGH University of Science and Technology, Al. A. Mickiewicza 30, 30-059 Krakow, Poland
Micro Flow Chemistry and Process Technology, Department of Chemical Engineering and Chemistry, Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Nederland
MTA-SZTE Biomimetic Systems Research Group, Department of Medical Chemistry, Faculty of Medicine, University of Szeged, Dóm tér 8., 6720 Szeged, Hungary
Department of Physical Chemistry and Materials Sciences, University of Szeged, Aradi Vt. 1., 6720 Szeged, Hungary
Author to whom correspondence should be addressed.
Received: 26 April 2018 / Revised: 12 May 2018 / Accepted: 15 May 2018 / Published: 18 May 2018
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In this paper, micro droplets are generated in a microfluidic focusing contactor and then they move sequentially in a free-flowing mode (no wall contact). For this purpose, two different micro-flow glass devices (hydrophobic and hydrophilic) were used. During the study, the influence of the flow rate of the water phase and the oil phase on the droplet size and size distribution was investigated. Moreover, the influence of the oil phase viscosity on the droplet size was analyzed. It was found that the size and size distribution of the droplets can be controlled simply by the aqueous phase flow rate. Additionally, 2D simulations to determine the droplet size were performed and compared with the experiment. View Full-Text
Keywords: sequential flow; droplets; microreactor; two-phase flow; simulations of 2D flow; Comsol Multiphysics sequential flow; droplets; microreactor; two-phase flow; simulations of 2D flow; Comsol Multiphysics

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Wojnicki, M.; Luty-Błocho, M.; Hessel, V.; Csapó, E.; Ungor, D.; Fitzner, K. Micro Droplet Formation towards Continuous Nanoparticles Synthesis. Micromachines 2018, 9, 248.

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