Ex Situ Solvent-Assisted Preparation of Magnetic Poly(propylene) Nanocomposites Filled with Fe@FeO Nanoparticles

Isotactic PP nanocomposites filled with Fe@FeO nanoparticles are fabricated by a facile ex situ method. The nanofillers are dispersed in a boiling PP/xylene solution. X-ray diffraction is used to determine the nanofiller effects on the crystallinity of PP. The crystallinity along the ( 040) plane is found to decrease with the incorporation of nanoparticles. Thermal properties and crystallinity are studied by TGA and DSC, respectively. Enhanced thermal stability and influenced crystallinity are observed in the PP nanocomposites compared with those of pure PP. An increased dielectric property without percolation threshold is observed. In addition, the nanocomposites are found to exhibit ferromagnetic properties.