Thermoplastic Polyurethane/ Polypropylene/ Fumed Silica Nanocomposites:Investigation on Effects of Blend Composition and Nanoparticle Types on Thermo-Mechanical Properties of Final Mixture

A novel biocompatible nanocomposite based on thermoplastic polyurethane (TPU)/polypropylene (PP)/fumed silica nanoparticles were prepared through melt compounding method and studied in terms of thermal and rheological behaviour. Effects of various fumed silica nanoparticles having different degree of hydrophobicity, nanoparticle size as well as chain length attached to the surface of nanoparticles on physical-mechanical and rheological properties of nanocomposites were discussed.

Keywords:

Thermoplastic polyurethane , Polypropylene , Fumed silica , Nonocomposite