High electric field poling of electroded poly(vinylidene fluoride) at room temperature

1983 ◽  
Vol 54 (8) ◽  
pp. 4602-4604 ◽  
Author(s):  
T. T. Wang ◽  
Heinz von Seggern
Keyword(s):  
Electric Field ◽  
Room Temperature ◽  
Vinylidene Fluoride ◽  
High Electric Field ◽  
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.

Rotation of polar axis of β-form poly(vinylidene fluoride) under high electric field

1984 ◽  
Vol 57 (1) ◽  
pp. 139-149 ◽  
Author(s):  
Ken'ichi Nakamura ◽  
Yoshikichi Teramoto ◽  
Naohiro Murayama
Keyword(s):  
Electric Field ◽  
Vinylidene Fluoride ◽  
Polar Axis ◽  
High Electric Field ◽  
Poly Vinylidene Fluoride

Field-induced phase transition and its impact on the magnetoelectric effect in P(VDF-HFP)/Metglas laminates

2009 ◽  
Vol 1199 ◽  
Author(s):  
David Sheng-Guo Lu ◽  
Xin Zhou ◽  
Zhao Fang ◽  
Qiming Zhang
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Room Temperature ◽  
Remanent Polarization ◽  
Magnetoelectric Effect ◽  
Vinylidene Fluoride ◽  
Bias Field ◽  
Magnetic Bias ◽  
Field Range ◽  
Poly Vinylidene Fluoride

AbstractThe field-induced phase transition driven by electric field was observed in poly(vinylidene fluoride – hexafluoropropylene) (P(VDF-HFP)) 90/10 wt% copolymers. Experimental results indicated that the electric field may remarkably affect the remanent polarization in terms of changing the D-E loop forms from double loops to single loop, starting from 68 MV/m, and completing at 216 MV/m. It was found that the remanent polarization as well as the piezoelectric constant d31 had a linear relationship with the poling electric field in above electric field range. Thus the magnetoelectric (ME) coupling coefficient ME in P(VDF-HFP)/Metglas laminates increased with the poling electric field. Moreover, the cyclic poled ME device demonstrated different peak d.c. magnetic bias field HDC on the ME - HDC curves from conventional room temperature poled ones. The peak ME coefficient obtained was 4 V/cm Oe.

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

High-electric-field poling of nonlinear optical polymers

1998 ◽  
Vol 15 (1) ◽  
pp. 318 ◽  
Author(s):  
Robert Blum ◽  
Martin Sprave ◽  
Jurgen Sablotny ◽  
Manfred Eich
Keyword(s):  
Electric Field ◽  
Nonlinear Optical ◽  
High Electric Field ◽  
Optical Polymers ◽  
Nonlinear Optical Polymers ◽  
Electric Field Poling

Preparation and Characterization of Modified PVDF-g-PSSA Membrane

2010 ◽  
Vol 152-153 ◽  
pp. 44-50 ◽  
Author(s):  
Gui Bao Guo ◽  
Er Ding Han ◽  
Sheng Li An
Keyword(s):  
Relative Humidity ◽  
Sodium Silicate ◽  
Room Temperature ◽  
Proton Exchange Membrane ◽  
Vinylidene Fluoride ◽  
Proton Exchange ◽  
Poly Vinylidene Fluoride ◽  
Relative Humidity Range ◽  
Exchange Membrane

A new method based on a solution graft technique was used to prepare poly (vinylidene fluoride) grafted polystyrene sulfonated acid (PVDF-g-PSSA) proton exchange membrane. Polystyrene is grafted into PVDF modified by plain sodium silicate (Na4SiO4). There is a linear relationship between the degree of grafting and the content of Na4SiO4. Fourier transform infrared spectroscopy is used to characterize changes of the membrane's microstructures after grafting and sulfonation. The morphology of the membrane's microstructures after grafting and sulfonation is studied by scanning electrolytic microscope (SEM). The effect of plain sodium silicate (Na4SiO4) concentration and relative humidity on the conductivity of the electrolyte was investigated by the impedance at room temperature. The results show that the styrene has been grafted into PVDF. The conductivity of PVDF-g-PSSA electrolyte doped 10% plain sodium silicate (Na4SiO4) is 0.016 S/cm at room temperature. The conductivity of the electrolyte changes slightly at a relative humidity range of 20%-70%. The weightlessness of PVDF-g-PSSA electrolyte heated to 40°C was less than 2%, which indicated that water capacity was good.

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