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Broadband dielectric spectroscopy of nanocomposites based on PVDF and expended graphite

AutorLinares, Amelia ; Canalda, J. C. ; Sanz, Alejandro; Szymczyk, A.; Roslaniec, Z.; Ezquerra, Tiberio A.
Fecha de publicación2014
EditorInstitute of Physics Publishing
CitaciónIOP Conference Series: Materials Science and Engineering 64: 012003 (2014)
ResumenNanocomposites based on poly (vinylidene fluoride) (PVDF) and expanded graphite (EG) were prepared by non-solvent precipitation from solution with different EG concentrations. Films were obtained by compression molding and their structural and dielectric properties studied. From Wide Angle X-ray Scattering (WAXS) experiments, it can be assessed that for all EG concentrations the -crystalline phase of PVDF is the predominant crystalline form. However, for composites with high nanoadditive content, higher than 3 wt.%, the -crystalline phase is also detected. Dielectric spectroscopy results showed that the nanocomposites present both high dielectric constant and electrical conductivity at low percolation threshold. Published under licence by IOP Publishing Ltd
Descripción2nd International Conference on Structural Nano Composites (NANOSTRUC 2014); 6 pags.; 4 figs.; Open Access funded by Creative Commons Attribution 3.0 licence.
Identificadoresdoi: 10.1088/1757-899X/64/1/012003
issn: 1757-8981
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