Toughening and compatibilization of polypropylene/polyamide‐6 blends with a maleated–grafted ethylene‐ co ‐vinyl acetate | Zendy

Liu Hongzhi | Zendy; Xie Tingxiu | Zendy; Hou Lianlong | Zendy; Ou Yuchun | Zendy; Yang Guisheng | Zendy

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Toughening and compatibilization of polypropylene/polyamide‐6 blends with a maleated–grafted ethylene‐ co ‐vinyl acetate

Author(s) -

Liu Hongzhi,

Xie Tingxiu,

Hou Lianlong,

Ou Yuchun,

Yang Guisheng

Publication year - 2006

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.23006

Subject(s) - compatibilization , materials science , polyamide , polypropylene , ethylene vinyl acetate , polymer blend , copolymer , composite material , miscibility , vinyl acetate , toughness , linear low density polyethylene , polymer chemistry , polymer

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 micrographs confirmed the formation of interfacial copolymers. Mechanical measurement revealed that the addition of EVA‐ g ‐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 %. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 99:3300–3307, 2006

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