MECHANICAL PROPERTIES HYBRID MATERIALS BASED ON ALIPHATIC POLYURETHANES AND TiO2 NANOPARTICLES

Abstract

In this work were synthesized hybrid materials based on aliphatic polyurethanes and small amounts of titanium dioxide nanoparticles (0.5; 2.0 and 3.0 wt.%). From an environmental point of view, this synthesized hybrid materials are significant engineering materials because the products of their thermal degradation are significantly less toxic compared to the products of thermal degradation of aromatic polyurethanes. The presence of uniformly distributed TiO2 nanoparticles (polyurethane film containing 2.0 wt.% TiO2) influenced the additional formation of hydrogen bonds as well as the improvement of the mechanical properties of the obtained polyurethane hybrid materials. The good mechanical properties, together with the corresponding thermal stability characteristics, make it possible to apply the obtained hybrid materials based on aliphatic polyurethanes and TiO2 nanoparticles as mechanically strong and durable coatings or films in biomedicine or as packaging materials.