Relationship between the rheological parameters and zeta potential of bentonites.
Damian Kowalczyk, Mateusz Wach, Albert Plewik, Sławomir Wysocki
Vol. 33, no. 4 (2016), s. 663-668, 
The paper presents an estimation of bentonites quality using electrokinetic phenomena occurring in dispersed clay systems. The idea behind the work is to demonstrate the relationship between the rheological parameters of the tested materials, and their zeta potential and consequently determine the suitability of these criteria for preparing drilling fluids.