Preparation and characteristic of magnetic LDPE/Fe3O4 nano-composite films

Magnetic LDPE/Fe3O4 composite films have been successfully prepared using conventional melt blending technique in a sigma internal mixer. The magnetic Fe3O4 nanoparticles using in compositing were perpared by chemical co-precipitation method and characterized by TEM, XRD, FTIR and their magnetism was analyzed by VSM. The LDPE/Fe3O4 composite films were measured with SEM, XRD, FTIR and VSM. The magnetic measurement showed that both the Fe3O4 nanoparticles and the composite films made through doping of Fe3O4 nanoparticles in original LDPE displayed a super-paramagnetic property. And other results showed that the composite films were dispersed homogeneously and the structure of original LDPE were not destroyed with the doping of Fe3O4 nanoparticles.