Thermally stimulated discharge and heat pulse responses of UV irradiated corona Teflon FEP films

Author

Da Cunha, H. Nunes ; Moreno, R.A.

Author_Institution

Dept. de Fisica, Inst. de Fisica e Quimica de Sao Carlos, Brazil

fYear

1991

fDate

25-27 Sep 1991

Firstpage

61

Lastpage

66

Abstract

One-side metallized negatively-corona-charged UV-irradiated Teflon FEP films show changes in their TSD (thermally stimulated discharge) curves as compared with those of nonirradiated samples. They are practically discharged after the first TSD process, indicating that UV (ultraviolet) irradiation makes the contact able to inject positive charge. Heat pulse records confirm positive injection from a UV-irradiation contact. UV-irradiated positively charged films have a residual potential larger than the unirradiated one and also show peak shifts in their TSD thermograms. Results are shown for different metallic contacts

Keywords

corona; electrets; heat treatment; polymer films; radiation effects; thermally stimulated currents; electrets; heat pulse responses; metallized negatively-corona-charged UV-irradiated Teflon FEP films; thermally stimulated discharge; thermograms; Contacts; Corona; Electrodes; Filters; Heating; Metallization; Ovens; Stability; Surface treatment; Temperature control;

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.1991.167183

Filename

167183