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Maleic anhydride grafted thermoplastic elastomer as an interfacial modifier for polypropylene/polyamide 6 blends
Author(s) -
Ou Yuchun,
Lei Yuguo,
Fang Xiaoping,
Yang Guisheng
Publication year - 2003
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.13384
Subject(s) - maleic anhydride , materials science , polypropylene , polyamide , compatibilization , crystallization , differential scanning calorimetry , polymer blend , thermoplastic elastomer , composite material , elastomer , polymer chemistry , scanning electron microscope , copolymer , chemical engineering , polymer , physics , engineering , thermodynamics
Abstract A maleic anhydride grafted thermoplastic elastomer (TPE g ) was prepared. The effect of the TPE g on the morphology and performance of polypropylene (PP)/polyamide 6 (PA‐6) blends was studied. The final properties of the blends were tuned through variations in the TPE g /PA‐6 ratios and TPE g and PA‐6 percentages in the blends. Scanning electron micrographs showed that the TPE g greatly improved the homogeneity of the blends, and this led to better mechanical performance. The nonisothermal crystallization behaviors of PP and PA‐6 in the blends, revealed by differential scanning calorimetry, were different from those of pure PP and PA‐6. The crystallization temperature and rate of PP were promoted by the PA‐6 component because of its nucleating effect, whereas stepwise crystallization was detected for PA‐6 in the PP/PA‐6 blends when the TPE g was added. On the basis of these observations, a schematic model was proposed for these blends. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 1806–1815, 2004