Effect of viscosities of dispersed and continuous phases in microchannel oil-in-water emulsification

作者: Koen van Dijke , Isao Kobayashi , Karin Schroën , Kunihiko Uemura , Mitsutoshi Nakajima

DOI: 10.1007/S10404-009-0521-7

关键词: OutflowMembrane emulsificationMechanicsPhase (matter)ViscosityMicrofluidicsAnalytical chemistryInflowMicroemulsionChemistryMicrochannel

摘要: Although many aspects of microchannel emulsification have been covered in literature, one major uncharted area is the effect viscosity both phases on droplet size stable generation regime. It expected that for formation to take place, inflow continuous phase should be sufficiently fast compared outflow liquid forming droplet. The ratio viscosities was therefore varied by using a range and dispersed phases, experimentally computationally. At high (ηd/ηc), constant; phase. lower ratios, diameter increases, until reached at which no longer possible (the minimal ratio). This confirmed elucidated through CFD simulations. limiting value shown function design, this adapted two fluids need emulsified.

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