Morphology, Mechanical and Thermal Properties of Recycled PC/ABS Blends Processed via Vane Extruder

Abstract

The melt blends of recycled polycarbonate and recycled poly(acrylonitrile-butadiene-styrene) were performed by using a novel vane extruder. The morphology, mechanical, and thermal properties of the RPC/RABS blends in the whole composition range were investigated. When the concentration of RABS was 20 wt%, the blend presented the best comprehensive mechanical properties, especially for the impact strength which was significantly improved compared with RPC and RABS individuals. The blend with 90 wt% RABS also presents better mechanical properties compared with the adjacent blending ratio. With the increase of RABS concentration in blends, T _g of the RABS phase decreases slightly, but T _g of the RPC phase increases. The DSC and SEM results indicate that RPC are partial miscible with RABS.