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Membranes 2016, 6(2), 34;

Emulsification Characteristics Using a Dynamic Woven Metal Microscreen Membrane

Chemical and Biochemical Engineering Department, Western University, London, ON N6A 5B9, Canada
Department of Chemical Engineering, American University of Sharjah, Sharjah, United Arab Emirates
Author to whom correspondence should be addressed.
Academic Editor: Robert Cattrall
Received: 23 March 2016 / Revised: 30 May 2016 / Accepted: 13 June 2016 / Published: 20 June 2016
(This article belongs to the Special Issue Membrane Emulsification)
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An oscillatory emulsification system for the production of oil in water emulsions using a commercially available low-cost woven metal microscreen (WMMS) is investigated. The system allows for independent control of both the oscillation frequencies and amplitudes such that it provides two degrees of freedom for controlling the emulsion properties. The investigations included the production of both surfactant and particle-stabilized emulsions. The average droplet size was found to decrease when both the oscillation frequency and amplitude was increased. For surfactant-stabilized emulsions, using bi-surfactants in both the continuous and dispersed phases resulted in a smaller droplet size due to lower interfacial tension. For particle-stabilized emulsions, both the hydrodynamics of the system and the hydrophobic and hydrophilic nature of the stabilizing particles influenced the interfacial properties at the oil–water interface, which in turn affected the final droplet size and distribution with potential droplet breakage. In absence of the latter, a simple torque balance model can be used to reasonably predict the average emulsion droplet size. View Full-Text
Keywords: membrane; emulsification; oscillatory motion membrane; emulsification; oscillatory motion

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Sabouni, R.; Gomaa, H.G.; Liu, J.; Zhu, J. Emulsification Characteristics Using a Dynamic Woven Metal Microscreen Membrane. Membranes 2016, 6, 34.

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