PTFE多孔膜驻极体电荷储存稳定性的机理研究

Journal of Applied Sciences ›› 1999, Vol. 17 ›› Issue (4): 384-388.

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A Study of Charge Storage Stability Mechanism for Porous Polytetrafluoroethylene (PTFE) Film Electret

CUI LILI¹, JIANG JIAN¹, XIA ZHONGFU², SONG JUPING², CHEN GANGJIN², ZHANG YEWEN²

1. Second Military Medical University, Shanghai 200433;
2. Tongji University, Shanghai 200092

Received:1998-07-06 Revised:1998-09-23 Online:1999-12-31 Published:1999-12-31

Abstract

Abstract: The space charge storage stability of porous polytetrafluoroethylene (PT FE) films was studied and comparied with the solid PTFE film by means of the isothermal surface potential decay and the open circuit thermally stimulate discharge (TSD),etc. The shift rule of mean charge depth for the porous electret film was investigated and then the charge transportation characteristic of the film was studied by TSD experiment and thermal pulse technique.

Key words: porous PTFE, electret, charge transport, chargestability

CUI LILI, JIANG JIAN, XIA ZHONGFU, SONG JUPING, CHEN GANGJIN, ZHANG YEWEN. A Study of Charge Storage Stability Mechanism for Porous Polytetrafluoroethylene (PTFE) Film Electret[J]. Journal of Applied Sciences, 1999, 17(4): 384-388.

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A Study of Charge Storage Stability Mechanism for Porous Polytetrafluoroethylene (PTFE) Film Electret

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