Analysis of Charge Relaxation in the Modified Films of the polyimide

Margarita E. Borisova, Almaz Kamalov


The aim of this work is the experimental and theoretical study of charge relaxation processes in the films of polyimide coated on both sides with lacquer PTFE (PMF-2), charged in a corona discharge at negative polarity in ambient conditions. The theoretical analysis is based on the model of quasi-continuous distribution of traps with respect to their energies. This paper shows that the stability of the electret state is caused by deep traps that are localized in a Teflon coating.


Charge relaxation; charge stability; depolarization currents; electret; energy of activation; homo-charge; polyimide films; polymer surface modification; traps

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DOI: 10.7250/pee.2017.002


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