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Received: 2003-09-26
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Charge dynamic characteristics in corona-charged polytetrafluoroethylene film electrets
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CHEN Gang-jin, XIAO Hui-ming, ZHU Chun-feng. Charge dynamic characteristics in corona-charged polytetrafluoroethylene film electrets[J]. Journal of Zhejiang University Science A, 2004, 5(8): 923-927.
@article{title="Charge dynamic characteristics in corona-charged polytetrafluoroethylene film electrets",
author="CHEN Gang-jin, XIAO Hui-ming, ZHU Chun-feng",
journal="Journal of Zhejiang University Science A",
volume="5",
number="8",
pages="923-927",
year="2004",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2004.0923"
}
%0 Journal Article
%T Charge dynamic characteristics in corona-charged polytetrafluoroethylene film electrets
%A CHEN Gang-jin
%A XIAO Hui-ming
%A ZHU Chun-feng
%J Journal of Zhejiang University SCIENCE A
%V 5
%N 8
%P 923-927
%@ 1869-1951
%D 2004
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2004.0923
TY - JOUR
T1 - Charge dynamic characteristics in corona-charged polytetrafluoroethylene film electrets
A1 - CHEN Gang-jin
A1 - XIAO Hui-ming
A1 - ZHU Chun-feng
J0 - Journal of Zhejiang University Science A
VL - 5
IS - 8
SP - 923
EP - 927
%@ 1869-1951
Y1 - 2004
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2004.0923
Abstract: In this work, the charge dynamics characteristics of injection, transport and decay in porous and non-porous polytetrafluoroethylene (PTFE) film electrets were investigated by means of corona charging, isothermal and thermal stimulating surface-potential decay measurements. The results showed that the initial surface potential, whether positively or negatively charging, is much higher in non-porous PTFE than in porous PTFE. For porous film the value of initial surface potentials increases with increase of film thickness. Higher charging temperature can remarkably improve charge stability. The charge dynamics are correlated to materials microstructure according to their scanning electron micrographs. For non-porous PTFE films, polarizability change of C-F bonds is the main origin of electret charges; but for porous PTFE film a large number of bulk and interface type traps are expected because of the greater area of interface and higher crystallinity.
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Open peer comments: Debate/Discuss/Question/Opinion
<1>
T. Yovcheva@Assoc. prof. Dr<temiov@uni-plovdiv.bg>
2010-10-25 02:20:56
I am interested in voided polymer films. Please, send me full text of this paper. It will be vwry intwrwsting for my work in the Plovdiv University, Bulgaria