Charging phenomena in polypropylene films

Author

Albini, A. ; Esposti, G.D. ; Guastavino, F. ; Tommasini, D.

Author_Institution

Dept. of Electr. Eng., Pavia Univ., Italy

fYear

1989

fDate

3-6 Jul 1989

Firstpage

148

Lastpage

152

Abstract

The influence of additives and impurities on conduction and polarization mechanisms in thin films of polypropylene was investigated. It was assumed that the charging current is made up of three components: a polarization component produced by dipole orientation, a conduction current, and a fast transient. The cause of each component was identified by means of a special nonlinear iterative algorithm based on the least-squares method. The results of this investigation show an influence of the additive content and of the temperature on the charging current that can be ascribed to the bulk composition of the materials. It is noted that it is very important to fit the experimental data in order to obtain the correct values of the steady-state conduction currents, which are more significant than the currents obtained at a fixed time

Keywords

dielectric polarisation; dielectric properties of solids; electrical conductivity of amorphous semiconductors and insulators; electronic conduction in insulating thin films; organic insulating materials; polymer films; static electrification; bulk composition; charging current; conduction current; dipole orientation; fast transient; impurities; influence of additives; least-squares method; nonlinear iterative algorithm; polarization mechanisms; polypropylene films; steady-state conduction currents; Additives; Current measurement; Impurities; Least squares methods; Manufacturing; Optical polarization; Plastic insulation; Polymer films; Temperature control; Temperature dependence;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Solid Dielectrics, 1989., Proceedings of the 3rd International Conference on

Conference_Location

Trondheim

Type

conf

DOI

10.1109/ICSD.1989.69178

Filename

69178