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Physical and mechanical properties of Al(OH) 3 /polypropylene composites modified by in situ‐functionalized polypropylene
Author(s) -
Mai Kancheng,
Li Zhengjun,
Qiu Yuxin,
Zeng Hanmin
Publication year - 2002
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.10269
Subject(s) - melt flow index , polypropylene , materials science , composite material , limiting oxygen index , ultimate tensile strength , crystallization , melting point , flexural strength , reactive extrusion , extrusion , chemical engineering , polymer , chemistry , combustion , copolymer , char , organic chemistry , engineering
Al(OH) 3 /polypropylene (PP) composites modified by in situ ‐functionalized polypropylene (FPP) were prepared by a one‐step melt‐extrusion process. The effect of in situ FPP on the crystallization and melting behavior, melt‐flow index, limiting oxygen index, thermal degradation, mechanical properties, and fracture morphology of Al(OH) 3 /PP composites was studied. Formation of in situ FPP resulted in a decreased crystallization temperature and melting point of PP in the composites, an increased melt‐flow index, and improved tensile and flexural strengths of Al(OH) 3 /PP composites, whereas the thermal degradation behavior and limiting oxygen index was not been influenced. The impact strength of the Al(OH) 3 /PP composites modified by in situ FPP depended upon the content of the initiator, dicumyl peroxide, and the monomer, acrylic acid. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 2850–2857, 2002; DOI 10.1002/app.10269