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

Figure 4

Decomposed relaxation process of NBR for seven representative temperatures (a) 404 K (b) 359 K (c) 326 K (d) 293 K (e) 272 K (f) 251 K, and (g) 233 K. Five relaxation processes, α′ (black dashed line), α (red dashed line), β (blue dashed line), γ (gray dashed line), and conduction (navy dashed line), contribute to the imaginary permittivity data.

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