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Morphology, thermal behavior, and mechanical properties of PA1010/PP and PA 1010/PP‐g‐GMA blends
Author(s) -
Zhang Xiaomin,
Li Xing Lin,
Wang Dongmei,
Yin Zhihui,
Yin Jinghua
Publication year - 1997
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/(sici)1097-4628(19970523)64:8<1489::aid-app6>3.0.co;2-d
Subject(s) - glycidyl methacrylate , polypropylene , materials science , composite material , polyamide , compatibilization , scanning electron microscope , polymer blend , rheology , wetting , polystyrene , heat deflection temperature , izod impact strength test , copolymer , polymer , ultimate tensile strength
The modification of polypropylene (PP) was accomplished by melt grafting glycidyl methacrylate (GMA) on its molecular chains. The resulting PP‐g‐GMA was used to prepare binary blends of polyamide 1010 (PA1010) and PP‐g‐GMA. Different blend morphologies were observed by scanning electron microscopy (SEM) according to the nature and content of PA1010 used. Comparing the PA1010/PP‐g‐GMA and PA1010/PP binary blends, the size of the domains of PP‐g‐GMA were much smaller than that of PP at the same compositions. It was found that mechanical properties of PA1010/PP‐g‐GMA blends were obviously better than that of PA1010/PP blends, and the mechanical properties were significantly influenced by wetting conditions for uncompatibilized and compatibilized blends. A different dependence of the flexural modulus on water was found for PA1010/PP and PA1010/PP‐g‐GMA. These behaviors could be attributed to the chemical interactions between the two components and good dispersion in PA1010/PP‐g‐GMA blends. Thermal and rheological analyses were performed to confirm the possible chemical reactions taking place during the blending process. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1489–1498, 1997