Analyzing and Comparing the Effect of System Dynamics on Agglomerations of CB/PS and TiO₂/PS Nanocomposites Through Rheological Dielectric Method

Abstract

Various particles containing dipoles have different dielectric properties which would be applicable in varied industries like electronics, aerospace, food and etc. Carrying out dielectric and rheological experiments called “Rheo-dielectric” would result in dramatic achievement in macro and micro structures of polymeric composites. In this study we used TiO₂ (as a ceramic material) and CB (as a conductive material) nanoparticles in PS (which is neutral) as a matrix to investigate the dispersion and agglomeration of each kind of nanocomposite and then compare them together. The dielectric experiments have been done at the frequency of 100 Hz and a sweep of shear strain has been imposed to the nanocomposites at the constant shear rate of 1 rad/s. We observed the breaking down of agglomerations, resulting in changes in dielectric data which were different in each nanocomposite.