Effects of ABS-g-MAH on mechanical properties and compatibility of ABS/PC alloy

The Effects of a compatibilizer, namely, an acrylonitrile-butadiene-styrene copolymer (ABS) grafted with maleic anhydrade (MAH) (ABS-g-MAH), on the me chanical properties and morphology of an ABS/polycarbonate (PC) alloy were studied The results showed that: a small quantity of ABS-g-MAH has a very g ood influence on the notched Izod impact strength of the ABS/PC alloy witho ut compromising other properties such as the tensile strength, flexural str ength, and Vicat softening temperature (VST). The impact strength of the AB S/PC alloy, to a great extent, depends on the loading of ABS-g-MAH and the degree of grafting (DG) of MAH in the ABS-g-MAH. DSC analysis and SEM obser vation confirmed that ABS-g-MAH could significantly improve the compatibili ty of the ABS/PC alloy. (C) 2001 John Wiley & Sons, Inc.