Analysis of dielectric spectroscopy of NR-SBR elastomer based polymer with wollastonit additive at high temperature

In this study, a dielectric srectroscopy analysis of NR-SBR rubber with wollostanit additives was carried out 303 K ? 453 K temperature interval and 100 Hz ? 100 MHz frequency range. Analysis of dielectric constant in both reel and imaginary parts indicated a phase transition. At the end of the measurements, dependencies of both reel and imaginary parts of dielectric constant with frequency were found complying with Havriliak-Negami model. However, model was converted to Debye model in which conductivity is also important depending on relevant parameters. Characteristic parameters relating to material were found from the result of dielectric experiments. Results indicate a probable phase transition at the temperature and frequency range and a relaxation mechanism. Dynamics of the mechanism was explained.On the other hand, the conductivity behaviour of the material was identified with ionic conductivity which is seen in polymer. Relevant parameters and conductivity was characterized.Key words: NR-SBR, Dielectric Constant, Conductivity