CHARACTERIZATION OF TERNARY BLENDS WITH METALLOCENE COPOLYMERS AND PA-6

摘要

The effectiveness as impact modifier of two maleated metallocene copolymers was studied in ternary blends with polyamide-6 as matrix and two metallocene copolymers as dispersed phase.Also,the effects of the grafting degree on the morphological and tensile properties were investigated.A reduction in tensile modulus and yield stress was observed in all reactive blends and an improvement in adhesion was clearly observed by SEM micrographs.The tensile strength values of blends were lower than that of neat PAs.The results indicated that the effectiveness of the grafted copolymers as impact modifier depend on the morphology of the blends and a combination of tensile properties of the blend components;such as,Young and Poisson's modulus and break stress of these grafted materials.