Influence of interfacial rheology on the viscosity of concentrated emulsions

Rajinder Pal

doi:10.1016/j.jcis.2010.12.068

Influence of interfacial rheology on the viscosity of concentrated emulsions

J Colloid Interface Sci. 2011 Apr 1;356(1):118-22. doi: 10.1016/j.jcis.2010.12.068. Epub 2010 Dec 28.

Author

Rajinder Pal¹

Affiliation

¹ Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada. rpal@uwaterloo.ca

PMID: 21257179
DOI: 10.1016/j.jcis.2010.12.068

Abstract

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.