Influence of interfacial rheology on the viscosity of concentrated emulsions.
New models are developed for the viscosity of concentrated emulsions taking into consideration the effects of interfacial rheology and Marangoni phenomenon. The interface is assumed to be viscous with non-zero surface-shear and surface-dilational viscosities. The Marangoni effect is accounted for through non-zero Gibbs elasticity of the interface. The experimental viscosity data for a number of emulsion systems are interpreted in terms of the proposed models.
Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada. rpal@uwaterloo.ca
Rajinder
R
Pal