Influence of X- and gamma-irradiation on selected electrical properties of polyethylene terephthalate films

Author

Gubanski, Adam ; Stankiewicz, Ryszard

Author_Institution

Inst. of Electr. Eng. & Technol., Tech. Univ. of Wroclaw, Poland

fYear

1991

fDate

25-27 Sep 1991

Firstpage

804

Lastpage

809

Abstract

Thermally stimulated depolarization currents (TSD) and measurements of permittivity, loss factor, and DC conductivity on X-ray and gamma-irradiated polyethylene terephthalate (PETP) films were investigated. The commercial ESTROFOL PETP film, 125 μm thick, was investigated. Samples were X- and gamma-irradiated with three different doses in different gaseous environments (air and N₂) and the electrical properties were measured as a function of time. Applying partial heating techniques, a distribution of activation energies of relaxation processes, being responsible for ∝ and ρ peaks, was found

Keywords

X-ray effects; dielectric depolarisation; dielectric losses; dielectric relaxation; electrets; gamma-ray effects; heat treatment; insulating thin films; permittivity; polymer films; thermally stimulated currents; 125 micron; DC conductivity; ESTROFOL PETP film; N₂; X-ray irradiation; activation energies; air; electrets; electrical properties; gamma-irradiated; loss factor; partial heating techniques; permittivity; polyethylene terephthalate films; relaxation processes; thermally stimulated depolarization currents; Conductive films; Conductivity measurement; Current measurement; Electric variables measurement; Loss measurement; Permittivity measurement; Plastic films; Polyethylene; Thermal conductivity; Thermal factors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)

Conference_Location

Berlin

Print_ISBN

0-7803-0112-9

Type

conf

DOI

10.1109/ISE.1991.167316

Filename

167316