Study of Water Molecules Dynamics by Coupling Dielectric Properties and Evolved Water Vapor Analysis

Abstract

In this study, broadband dielectric properties of water in compacted kaolinite clay are investigated. Two types of analysis are applied, a thermo-coulometric analysis also called “evolved water vapor” is used to identify the different bounding forms of water and the analysis of the transformation of dielectric modulus from dielectric permittivity measurements. A correlation between differently bound water fractions in kaolinite clay are identified by combining these analyses during water uptake and drying process. Water content dependence with the electric modulus strength peaks in RF (radiofrequency) range is studied.