1 PVDF/CO3O4 Nanocomposites: Porosity, Crystallinity and Conductivity
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In the present work, composites were prepared by combining nano sized Co3O4 and poly (vinyledene fluoride) (PVDF), using spin coating technique. The surface of the PVDF/Co3O4 system characterized through Field Emission Scanning electron microscopy (FESEM) revealed a porous structure of the films. The nanoparticles tend to aggregate on the surface and inside the pores, leading to a decrease in the porosity with an increase in Co3O4 content. Co3O4 nanoparticles prohibit crystallization of the polymer. Differential scanning calorimetry (DSC) studies revealed a decrease in crystallinity of PVDF/Co3O4 system with an increase in the oxide content. Magnetic property studies of the composite films revealed that with an increase in Co3O4 content, the saturation magnetization values of the nanocomposites increased linearly, showing successful incorporation of the nanoparticles in the polymer matrix.