ABSTRACT

This chapter argues that the basic equations of the problem is given and then their linearization and simplification are given by considering that the particles are spherical and with identical radius. It shows how other quantities of interest, including permittivity, electrophoretic mobility, or dynamic mobility, can be calculated. Most of the relevant studies on electrokinetic phenomena in concentrated suspensions, electrophoresis, and electrical conductivity in particular, are based on Levine–Neale’s boundary conditions. There is an increasing amount of experimental results on the electroacoustics of concentrated suspensions. The chapter presents an overview of the electrokinetic phenomena in concentrated systems, a field of research in colloid science that is gaining increasing attention because of the many technological applications of suspensions. Most important, it must be stressed that there is room for new contributions, as the problem is far from fully solved, considering the variety of electrokinetic phenomena that can be used for the characterization of concentrated colloidal dispersions.