Abstract
Recycling of used polycarbonate (PC) was conducted via melt blending with maleic anhydride grafted ABS (ABS- g-MA) using a twin-screw extruder. The toughness of waste PC was greatly improved through the modification of ABS- g-MA. The toughening mechanism was explored based on the morphology of the blends. The grafting of MA onto ABS was considered a key factor, which resulted in a special morphology of ABS domains dispersed in PC matrix. At a certain PC/ABS- g-MA weight ratio, the ABS domains connected together forming a network and gave rise to a maximum of the notched impact strength.
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