436634 Arrested Coalescence of Microstructured Droplets: Emulsion Connectivity and Restructuring

Monday, November 9, 2015: 12:30 PM
Canyon A (Hilton Salt Lake City Center)
Patrick T. Spicer, School of Chemical Engineering, UNSW Australia, Sydney, Australia and Prerna Dahiya, Chemical Engineering, UNSW Australia, Sydney, Australia

The arrest of droplet coalescence has been shown to produce stable anisotropic shapes and to be a key mechanism for microstructure development in foods, petroleum, and pharmaceutical formulations. This work builds on a recent model of the dynamic arrest of binary coalescence by internal elastic structures and examines the formation of multi-droplet connections in a microstructured oil-in-water emulsion.  Droplet deformation in such systems, especially polydisperse ones, is shown to be highly variable with a strong history dependence even for systems that experience only linear elastic deformation. A model of multiple droplet arrested coalescence is developed and used to extend the previous model of binary interactions.

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See more of this Session: Emulsions and Foams I
See more of this Group/Topical: Engineering Sciences and Fundamentals