Reactive blends of poly (vinyl chloride) and thermoplastic polyurethanes

Mukerrem Cakmak

Abstract

In this study, a novel reactive blending technique was used to produce poly (vinyl chloride) (PVC)/thermoplastic polyurethane (TPU) blends that are otherwise difficult to produce by a conventional melt blending techniques due to degradation at elevated processing temperatures. Morphological and spectral characterization studies revealed that reactive blending process generated better mixing relative to melt blending process. The miscibility of the PVC with the polyols of the TPU and with the TPU was studied by changing in the chemical structure of the polyol.