Polymeric Membranes: Effects of Catalyst Volume Fraction on Dielectric Relaxation Time and Crystallites Dimensions
- *Corresponding Author:
- Ioan Bica
West University of Timisoara
Bd. V. Parvan, nr.4
E-mail: ioanbica50@ yahoo.com
Received date: February 16, 2016; Accepted date: February 24, 2016; Published date: February 29, 2016
Citation: Iordaconiu L, Malaescu I, Chirigiu L, Bica I (2016) Polymeric Membranes: Effects of Catalyst Volume Fraction on Dielectric Relaxation Time and Crystallites Dimensions. Ind Chem 2:117. doi:10.4172/2469-9764.1000117
Copyright: © 2016 Iordaconiu L, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
We have obtained polymeric membranes based on silicone rubber, stearic acid, silicone oil at various concentrations of catalyst. The obtained polymeric membranes are used as dielectric materials for fabricating plane capacitors. By using the plane capacitor method, we measure capacitance C and dissipation factor D of the plane capacitors in an electric field of medium frequency. From the obtained data we calculate the dispersion and absorption characteristics of the membranes. We show that these characteristics are sensibly influenced by dimensions of the crystallites which in turn, depend on the concentration of catalyst used at polymerization of silicone rubber.