Estimation of activation energy of phase transition of PVC through thermal conductivity and viscosity analysis

Abstract The present paper focuses on the estimation of activation energy of phase transition of poly vinyl chloride (PVC) through two different approaches thermal conductivity and viscosity analysis. The first approach is employed by using Hot Disc Thermal Constants Analyzer experimental set up. Its working principle is based on Transient Plane Source (TPS) technique. The second approach is achieved by using Dynamic Mechanical Analyzer experimental set up. Both the analysis approaches clearly reveals regarding a particular higher temperature at which the abrupt change in respective property of polymeric material observed which is ascertained as the phase transition temperature (Tg). Arrhenius and Vogel–Fulchar–Tammann (VFT) equations have been used for further determination of the phase transition activation energy of PVC. This study reveals that the evaluated values of phase transition activation energy of PVC through both these approaches are in appropriate concurrence.