Thermal stability of polarization in P(VDF-TFE) copolymer films

Author

Küssner, B. ; Eberle, G. ; Eisenmenger, W. ; Fedosov, S.N.

Author_Institution

1. Phys. Inst., Stuttgart Univ., Germany

fYear

1996

fDate

25-30 Sep 1996

Firstpage

877

Abstract

Summary form only given. PVDF and P(VDF-TrFE) copolymer have been extensively studied recently, while much less is known about properties of P(VDF-TFE) copolymer. The purpose of this work was to study the role played by the trapped charge in thermal stability of the residual polarization in P(VDF-TFE) films and to find the energy of the charge de-trapping. To accomplish this, polarization profiles in the films poled either with or without a thermal stimulation were measured at different temperatures by the piezoelectrically induced pressure step (PPS) method. The activation energy was calculated from the experimental data and compared with those already known for PVDF and P(VDF-TrFE) copolymer

Keywords

dielectric polarisation; polymer blends; polymer films; thermal stability; P(VDF-TFE) copolymer film; activation energy; charge detrapping; piezoelectrically induced pressure step; polarization; thermal stability; thermal stimulation; Electrets; Piezoelectric films; Piezoelectric polarization; Pressure measurement; Probability; Temperature measurement; Thermal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1996. (ISE 9), 9th International Symposium on

Conference_Location

Shanghai

Print_ISBN

0-7803-2695-4

Type

conf

DOI

10.1109/ISE.1996.578224

Filename

578224