Simultaneous stretching and static electric field poling of poly(vinylidene fluoride-hexafluoropropylene) copolymer films

2007 ◽  
Vol 47 (10) ◽  
pp. 1630-1633 ◽  
Author(s):  
Yan Huan ◽  
Yayan Liu ◽  
Yifei Yang
Keyword(s):  
Electric Field ◽  
Vinylidene Fluoride ◽  
Static Electric Field ◽  
Copolymer Films ◽  
Poly Vinylidene Fluoride ◽  
Electric Field Poling

scholarly journals Preparation of efficient piezoelectric PVDF–HFP/Ni composite films by high electric field poling

2022 ◽  
Vol 11 (1) ◽  
pp. 452-462
Author(s):  
Dan Lei ◽  
Ning Hu ◽  
Liangke Wu ◽  
Rongyi Huang ◽  
Alamusi Lee ◽  
...  
Keyword(s):  
Electric Field ◽  
Vinylidene Fluoride ◽  
Composite Films ◽  
High Electric Field ◽  
Ni Nanoparticles ◽  
Scanning Calorimetry ◽  
Uniaxial Stretching ◽  
Poly Vinylidene Fluoride ◽  
Electric Field Poling ◽  
Pure Pvdf

Abstract Poly(vinylidene fluoride) (PVDF) and its copolymers have been widely studied due to their excellent piezoelectricity and ferroelectricity. In this study, composite films are prepared by adding Ni nanoparticles (0.00–0.3 wt%) into poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF–HFP) matrix by solution casting, uniaxial stretching, and high electric field poling. It is found that when the maximum electric field E max for poling is 130 MV m−1, the calibrated open circuit voltage of the pure PVDF–HFP films reaches 3.12 V, which is much higher than those poled by a lower electric field (70 MV m−1: 1.40 V; 90 MV m−1: 2.29 V). This result shows that the effect of poling on the generated output voltage is decisive. By adding 0.1 wt% Ni nanoparticles, it increases to 3.84 V, 23% higher than that of the pure PVDF–HFP films. To further understand the enhancement mechanism, the effects of Ni nanoparticles on initial crystallization, uniaxial stretching, and high electric field poling are investigated by X-ray diffraction, scanning electron microscope, Fourier transform infrared spectroscopy, and differential scanning calorimetry.

Preparation and electrical properties of γ form poly(vinylidene fluoride) thin film by vapour deposition in the presence of an electric field

1991 ◽  
Vol 202 (2) ◽  
pp. 213-220 ◽  
Author(s):  
Akiyoshi Takeno ◽  
Norimasa Okui ◽  
Tetsuji Kitoh ◽  
Michiharu Muraoka ◽  
Susumu Umemoto ◽  
...  
Keyword(s):  
Thin Film ◽  
Electrical Properties ◽  
Electric Field ◽  
Vapour Deposition ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride
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