THE INFLUENCE OF DIFFERENT NANOFILLERS ON THERMAL PROPERTIES OF ENVIRONMENTALLY FRIENDLY POLYURETHANE HYBRID MATERIALS

In the past decade, the extensive research is focused to the structuring of novel thermoplastic segmented polycarbonate-based polyurethanes (PC-PUs) with a high range of potential application, due to their good biostability, biocompatibility, mechanical and thermal resistance, melt-processability and rubber like characteristics at the service temperature. In this work, a series of advanced polyurethane hybrid systems were prepared following one-step procedure and by varying the content (0, 1, 2, 5 or 10 wt%) of alumina, titania and zinc-oxide nanoparticles. The influence of filler type (Al2O3, TiO2 or ZnO) and its content on thermal properties of obtained nanocomposites (glass transition temperature and melting of hard domains) were studied by differential scanning calorimetry. The obtained DSC results revealed that that the obtained elastomeric materials are very promising for their potential use in the condition of high service temperatures.