Rheology of a dilute suspension: Analytical expression for the viscosity in the limit of low zeta-potentials

Abstract:

A modified theoretical model on the primary electroviscous effect, based upon the inclusion of the condition of that the ions within the Stern layer are allowed to move tangential to the surface of the particle, is proposed. Booth's analysis (Booth 1950a), valid for spherical particles at low zeta-potentials, is the start point, and the effect of a dynamic Stern layer is included. The analytic results are compared with full numerical computations and a good agreement is found for zetapotentials less than 25 mV. © Springer-Verlag 2001.

Año de publicación:

2001

Keywords:

• suspensions
• Dynamic stern layer
• Primary electroviscous effect

Fuente:

scopus