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The International Journal of Artificial Organs, 2018
Polyvinylidene fluoride and its co-polymer with trifluoroethylene are promising biomaterials for supporting nerve regeneration processes because of their proven biocompatibility and piezoelectric properties that could stimulate cell ingrowth due to electrical activity upon mechanical deformation.
Fedaa, Al Halabi +4 more
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Polyvinylidene fluoride and its co-polymer with trifluoroethylene are promising biomaterials for supporting nerve regeneration processes because of their proven biocompatibility and piezoelectric properties that could stimulate cell ingrowth due to electrical activity upon mechanical deformation.
Fedaa, Al Halabi +4 more
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2019 IEEE International Symposium on Applications of Ferroelectrics (ISAF), 2019
We investigate the crystal properties dependence of the dielectric and ferroelectric performance of pure polyvinylidene fluoride (PVDF) films with various molecular weights using large-scale stretching of 5-time. After stretching, all PVDF films show the crystalline transition from well-defined α and β crystal grains to all trans crystal slice rather ...
Weimin Xia +3 more
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We investigate the crystal properties dependence of the dielectric and ferroelectric performance of pure polyvinylidene fluoride (PVDF) films with various molecular weights using large-scale stretching of 5-time. After stretching, all PVDF films show the crystalline transition from well-defined α and β crystal grains to all trans crystal slice rather ...
Weimin Xia +3 more
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Piezoelectric relaxation in polyvinylidene fluoride
Journal of Applied Physics, 1979The piezoelectric and related properties have been measured for stretched polyvinylidene fluoride as a function of temperature. The piezoelectric relaxation observed around the glass transition temperature Tg is discussed taking the two-phase structure into consideration.
T. Furukawa, J. Aiba, E. Fukada
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Dipole reorientation in polyvinylidene fluoride
Journal of Applied Physics, 1974The thermally stimulated current (TSC) from polarized polyvinylidene fluoride is studied below room temperature. The experimental results indicate that the maximum of the TSC observed at ∼ −50°C is due to reorientation of dipoles in a process associated with the glass transition. The TSC peak is inhomogeneously broadened by a distribution in relaxation
G. Pfister, M. A. Abkowitz
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Ferroelectric behavior of polyvinylidene fluoride
Ferroelectrics, 1981Abstract The hysteresis loops between the electric displacement and the triangular applied electric field with an amplitude up to 300 MV/m and a period of 1000 sec were observed at -5°C and -80°C for stretched films of PVDF with form I crystalline phase.
T. Takahashi, M. Date, E. Fukada
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Characterization of Polyvinylidene Fluoride.
1979Abstract : An apparatus for measuring the electrical properties of polymer films is described. The dielectric and pyroelectric properties of commercial and radiation polymerized polyvinylidene fluoride are compared. (Author)
J. M. Bates +3 more
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Relaxational behaviour of polyvinylidene fluoride
Il Nuovo Cimento B Series 11, 1976The relaxational behaviour of polyvinylidene fluoride (PVF2) has been characterized by static and dynamic mechanical measurements, carried out in the temperature region between 90 K and 420 K at frequencies of about 1 Hz and 1 kHz. Combination of these mechanical data with dielectric literature data and our own results on thermally stimulated ...
A. Callens, R. De Batist, L. Eersels
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Chemical etching of polyvinylidene fluoride films
International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements, 1988Abstract The chemical etching of two types of polyvinylidene fluoride (PVDF) film irradiated with heavy ions was studied. Several etchants have been investigated in this work. It was found that for a solution of KOH +KMnO4 the radial etch rate (RER) is larger than for solutions used by other authors.
A. Khodai-Joopary +4 more
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Ion beam processing of polyvinylidene fluoride
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1996Abstract Polyvinylidene fluoride (PVDF) films are irradiated with 8 MeV/amu ion beams at different fluences and doses. The ion beam effects in PVDF are investigated in situ, by the induced molecular emission, and ex situ, by physical characterization of irradiated films.
L. Torrisi, R. Percolla
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Pyroelectric transient response of polyvinylidene fluoride
Journal of Applied Physics, 1980The pyroelectric responses of conventionally poled films of polyvinylidene fluoride to a step input of radiation have been analyzed and shown to be well described by the superposition of two decaying exponentials governed by the thermal and the electrical time constants of the system respectively. The peak response of the pyroelectric current transient
D. K. Das-Gupta, K. Doughty
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