Investigations of the Influence of Compatibilizer and TiO2 Filler on the Properties of Thermoplastic Polyurethane/Polyolefins Blends

Abstract

Melt blending of thermoplastic polyurethane (TPU) with polyolefins (PO) can lower the cost and improve mechanical and chemical properties. Since thermoplastic polyurethane and polyolefins are completely immiscible polymers, property enhancement cannot be attained. Effect of incorporation of polypropylene copolymer (PPCP), TPU-g-MA, TPU-g-AA as compatibiliser on the miscibility of the blends and effect of TiO₂ filler to enhance the mechanical properties were studied. Blends were produced by melt mixing using a single screw extruder. Mechanical and morphological properties were studies. The results show that the blend of thermoplastic polyurethane (TPU)/PO’s with suitable compatibiliser and mica gives excellent performance in all aspects.