Effect of Polyol Structure on Thermal and Mechanical Behaviour of Fe3O4/Polyurethane Nanocomposites

The magnetite (Fe3O4) nanoparticles with good biocompatibility, nontoxicity and excellent magnetic properties have potential for use in magnetic separation, drugtargeting and hyperthermia [1]. Magnetite also is one of the preferred nonomaterial, which is used in combination with polymers, e.g. for recording media, in medical applications, in building industry for damping applications, for absorption of radiation and magnetic shape memory polymers [2].Among the several polymers as matrix of nanocomposite, polyurethane offers several advantages, such as biocompatibility, high mechanical strength, good handling and especially very low cost [3].