Study on Physical, Mechanical and Flammability of ABS/PVC Blends

In this research blends of two samples of Acrylonitrile-Butadiene-Styrene (ABS) with three samples of Poly(vinyl chloride) (PVC) were prepared via melt processing and their physical, mechanical and fire properties were investigated. It was found that properties of blends were significantly depends on blend composition and PVC compound types, but the properties of blends containing different types of ABS similar results were seen. On blending of ABS with soft PVC compound, impact strength and melt flow index (MFI) of ABS were increased, however, tensile and flexural strength were decreased. In contrast, blending of ABS with rigid PVC improved its fire retardancy and some mechanical properties but decreased its MFI and impact strength.