期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 99, 期 6, 页码 3300-3307出版社
WILEY
DOI: 10.1002/app.23006
关键词
poly(propylene); polyamide-6; toughness; compatibilization
In this article, maleated- grafted ethylene-co-vinyl acetate (EVA-g-MA) was used as the interfacial modifier for polypropylene /polyamide-6 (PP/PA6) blends, and effects of its concentration on the mechanical properties and the morphology of blends were investigated. It was found that the addition of EVA-g-MA improved the compatibility between PP and PA6 and resulted in a finer dispersion of dispersed PA6 phase. In comparison with uncompatibilized PP/PA6 blend, a significant reduction in the size of dispersed PA6 domain was observed. Toluene-etched micro- graphs confirmed the formation of interfacial copolymers. Mechanical measurement revealed that the addition of EVAg-MA markedly improved the impact toughness of PP/PA6 blend. Fractograph micrographs revealed that matrix shear yielding began to occur when EVA-g-MA concentration was increased upto 18 wt %. (c) 2006 Wiley Periodicals, Inc.
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