Morphology and mechanical property of poly(phenylene oxide) modified polypropylene blends
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abstract
Morphology and mechanical behavior of isotactic polypropylene (iPP) and Noryl poly(phenylene oxide) (Noryl PPO) blends were studied. Large PPO particle sizes and wide size distribution were found in the iPP/PPO blends if no compatibilizers were added. The addition of a compatibilizer tremendously improved PPO particle dispersion and particle-matrix interfacial adhesion in PP. This, in turn, greatly improves the fracture toughness of iPP. The results showed that phase morphology has a significant effect on the mechanical performance of these blends.