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Study of thermally poled and corona charged poly(vinylidene fluoride) films
Author(s) -
Jiang Yadong,
Ye Yun,
Yu Junsheng,
Wu Zhiming,
Li Wei,
Xu Jianhua,
Xie Guangzhong
Publication year - 2007
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20817
Subject(s) - poling , materials science , ferroelectricity , x ray photoelectron spectroscopy , fourier transform infrared spectroscopy , piezoelectricity , fluoride , polyvinylidene fluoride , composite material , hysteresis , dielectric , polymer , chemical engineering , optoelectronics , condensed matter physics , inorganic chemistry , chemistry , physics , engineering
The effect of thermal poling and corona charging on the structure and characteristics of poly(vinylidene fluoride) films (PVDF) was investigated. The structure and chemical change of PVDF films with different polarizing treatments was examined using Fourier transform infrared spectroscopy and X‐ray photoelectron spectroscopy, respectively. The characteristics including piezoelectric coefficients, ferroelectric hysteresis, and leakage current were measured. It was found that both polarized methods contribute to dramatic improvement on the piezoelectricity and ferroelectricity of PVDF films, while thermal poling leads to structure change with the generation of new carbon composition. The reason to cause leakage current was also analyzed. POLYM. ENG. SCI., 47:1344–1350, 2007. © 2007 Society of Plastics Engineers