Rheology of Acacia-Stabelised Emulsions

Abstract

The flow behaviour of emulsions of benzene and two paraffin oils in acacia solutions has been examined. The concentration of acacia had little effect on the relative viscosity, and the viscosity of the oil none. Emulsion viscosity increased with the volume fraction of oil which also led to an increased deviation from Newtonian flow. Evidence of thixotropy was not found in these emulsions. The chemical nature of the oil has a great influence on the viscosity and the differences are explained in terms of the characteristics of the interfacial film.