Determination of the electrical conductivity and the elctroosmotic transfer in the concentrated dispersions on the basis of the cell theory of the electroosmosis

TL;DR

This paper presents theoretical calculations of electrical conductivity and electroosmotic transfer in concentrated dispersions using cell theory, focusing on overlapping electric double layers, with results aligning qualitatively with experimental data.

Contribution

It introduces a theoretical model for electroosmosis in concentrated dispersions considering overlapping electric double layers, extending prior models.

Findings

Results agree qualitatively with experimental data

Describes how conductivity varies with disperse phase volume

Analyzes electroosmotic transfer in concentrated systems

Abstract

Theoretical calculations of the electrical conductivity and electroosmotic transfer as functions of the disperse phase volume fraction and non-dissolving boundary layer thickness were provided on the basis of the cell theory of electroosmosis for the limiting case of large degree of electric double layers overlapping in interparticle space. The obtained results are in qualitative agreement with the experimental data and describe the main features of the latter