Effect of ABS Rubber Content on the Localization of MWCNTs in PC/ABS Blends and Electrical Resistivity of the Composites

Three types of acrylonitrile-butadiene-styrene rubbers with different rubber contents were used in the preparation of PC/ABS/MWCNT composites. It was found that localization of MWCNTs changes from PC to ABS phase when rubber content of ABS varies from 5 to 60%. This is discussed by a combination of thermodynamics and kinetics. Melting sequence and high viscosity of ABS are used to explain the localization of MWCNTs in the high viscosity ABS phase. The relationship between the localization of MWCNTs and the electrical resistivity of the composite is also investigated.