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Heterogeneous dispersion of the compatibilizer in the injection molding of polyamide 6/polypropylene blends
Author(s) -
Yang Wei,
Tang XueGang,
Xie BangHu,
Zhu YongPing,
Yang MingBo,
Hou Meng
Publication year - 2009
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.29455
Subject(s) - polypropylene , polyamide , materials science , maleic anhydride , composite material , dispersion (optics) , izod impact strength test , molding (decorative) , compatibilization , polymer blend , polymer , copolymer , physics , optics , ultimate tensile strength
Four kinds of ethylene–proplene–diene/maleic anhydride compatibilized polyamide 6/polypropylene samples were prepared with different mixing sequences and showed significant differences in the Izod impact strength. The morphological features of these samples were characterized with scanning electron microscopy, and a heterogeneous dispersion of the compatibilizer in the injection‐molded samples was observed; this was related to the shear field in the skin and subskin layers during injection. A parameter, the transfer energy, is put forward to interpret the dispersion of the compatibilizer in the injection‐molded blends, and the results show that the transfer energy is a key factor in determining the transfer of the compatibilizer. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009