Transient currents in discharge mode in ethyl-cellulose: polymethyl methacrylate compounds

Author

Keller, J.M. ; Datt, S.C. ; Singh, Ranjit ; Jain, Vinita ; Verma, Girish

Author_Institution

Dept. of Postgrad. Studies & Res. in Phys., Rani Durgavati Univ., Jabalpur, India

fYear

1991

fDate

25-27 Sep 1991

Firstpage

177

Lastpage

182

Abstract

Transient currents were measured in discharge mode with ethyl-cellulose (EC):polymethyl methacrylate (PMMA) compound samples as a function of charging field, temperature, and polymer weight ratio. These currents have been found to follow the Curie-von Schweidler law characterized with different slopes in short and long time regions. The isochronals have been found to give rise to a peak located at 80°C. The corresponding activation energy values are found to increase with PMMA content and also with time of observation of discharge current

Keywords

dielectric depolarisation; electrets; polymer blends; transients; Curie-von Schweidler law; PMMA content; activation energy; charging field dependence; discharge current; discharge mode; electret; ethyl-cellulose-PMMA copolymer; ethyl-cellulose: polymethyl methacrylate compounds; isochronals; polymer weight ratio; temperature dependence; transient currents; Current measurement; Dielectric losses; Fault location; Frequency; Glass; Mechanical factors; Physics; Polymer films; Solvents; Temperature;

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.1991.167205

Filename

167205