Enhancement of the PVDF’s Piezoelectricity by magnetic-conductive hybrid nanoparticle-nanoplates

Iron oxide-graphene oxide (Fe3O4-GO) hybrid nanoparticle-nanoplates were synthesized in a multistep process for achieving higher performance and synergetic effect of magnetic properties of the Fe3O4 nanoparticles and conductive properties of GO nanoplates. Then, novel multifunctional Fe3O4-GO/PVDF nanocomposite fiber mats were prepared using solution mixing and electrospinning methods. The effect of the Fe3O4-GO contents on the morphological and piezoelectric properties of the PVDF nanocomposite fiber mats was investigated. The morphology of the nanofibers was investigated by scanning electron microscope (SEM). The transformation of α to β crystals in fiber nanocomposites was studied using Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction techniques (XRD). Also, to verify the piezoelectric properties of the Fe3O4-GO/PVDF nanofibers, a piezoelectric properties oscilloscope sensor was used. Results demonstrate that the Fe3O4-GO hybrid nanoparticles had a great influence on the α to β phase transformation of the PVDF crystals and piezoelectric response properties in fiber mats of the PVDF hybrid nanocomposites. Keywords: PVDF, Nanofiber, Grapherne, Piezoelectricity Iron oxide-graphene oxide (Fe3O4-GO) hybrid nanoparticle-nanoplates were synthesized in a multistep process for achieving higher performance and synergetic effect of magnetic properties of the Fe3O4 nanoparticles and conductive properties of GO nanoplates. Then, novel multifunctional Fe3O4-GO/PVDF nanocomposite fiber mats were prepared using solution mixing and electrospinning methods. The effect of the Fe3O4-GO contents on the morphological and piezoelectric properties of the PVDF nanocomposite fiber mats was investigated. The morphology of the nanofibers was investigated by scanning electron microscope (SEM). The transformation of α to β crystals in fiber nanocomposites was studied using Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction techniques (XRD). Also, to verify the piezoelectric properties of the Fe3O4-GO/PVDF nanofibers, a piezoelectric properties oscilloscope sensor was used. Results demonstrate that the Fe3O4-GO hybrid nanoparticles had a great influence on the α to β phase transformation of the PVDF crystals and piezoelectric response properties in fiber mats of the PVDF hybrid nanocomposites.