Characterization of Dielectric Relaxation Process by Impedance Spectroscopy for Polymers: Nitrile Butadiene Rubber and Ethylene Propylene Diene Monomer

Figure 8

An example of the decomposition of relaxation spectra by the dispersion analysis program at 272 K in EPDM. (a) Real (red line) and imaginary (blue line) fitted permittivity line versus frequency for all temperatures and (b) the decomposition of three relaxation processes by the dispersion analysis program. In (b), the measured data of the real (red ×) and imaginary (blue ×) permittivity and the fitted real (red line) and imaginary (blue line) permittivity graphs at 272 K are shown, and their fitted parameters are listed in the bottom table.