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Simultaneous stretching and static electric field poling of poly(vinylidene fluoride‐hexafluoropropylene) copolymer films
Author(s) -
Huan Yan,
Liu Yayan,
Yang Yifei
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.20843
Subject(s) - hexafluoropropylene , materials science , poling , copolymer , piezoelectricity , electric field , dielectric , composite material , fluoride , thin film , polymer chemistry , polymer , nanotechnology , ferroelectricity , optoelectronics , tetrafluoroethylene , chemistry , physics , quantum mechanics , inorganic chemistry
Poly(vinylideneflouride‐hexafluoropropylene) (PVDF‐HFP) copolymer films were simultaneously stretched and static electric poled (SSSEP) in seriate mode. The experimental results exhibited that SSSEP greatly enhanced the piezoelectric properties of the PVDF‐HFP films and slightly increased the dielectric properties of the films. The maximum piezoelectric coefficient d 33 24 pC/N higher than the reported was obtained in these films under optimum condition. Based on the wide angle X‐ray diffraction results, the SSSEP films showed more organized crystalline structure than the only stretched films. POLYM. ENG. SCI., 47:1630–1633, 2007. © 2007 Society of Plastics Engineers