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Effect of compatibilizer on morphology, thermal, and rheological properties of polypropylene/functionalized multi‐walled carbon nanotubes composite
Author(s) -
Jin Sang Hyun,
Kang Chang Heon,
Yoon Kwan Han,
Bang Dae Suk,
Park YoungBin
Publication year - 2008
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.29009
Subject(s) - polypropylene , materials science , composite number , carbon nanotube , maleic anhydride , composite material , diamine , nanocomposite , crystallization , thermal decomposition , dispersion (optics) , polymer chemistry , chemical engineering , polymer , copolymer , chemistry , organic chemistry , physics , optics , engineering
Multi‐walled carbon nanotubes (MWCNTs) filled polypropylene (PP) composites were prepared by a corotating intermeshing twin screw extruder. To improve the dispersion of MWCNTs, the surface of MWCNT was modified with 1,10‐diaminodecane, and maleic anhydride grafted polypropylene (MA‐ g ‐PP) was used as a compatibilizer. Micrographs of well dispersed functionalized MWCNTs (diamine‐MWCNT) were observed due to the reaction between MA‐ g ‐PP and diamine‐MWCNT in PP/MA‐ g ‐PP/diamine‐MWCNTs composites. The different behaviors in crystallization and melting temperatures of PP/MA‐ g ‐PP/diamine‐MWCNTs composite were observed compared to PP and PP/neat‐MWCNT. Especially, the decomposition temperature of the composite was increased by 50°C compared to PP. PP/MA‐ g ‐PP/diamine‐MWCNTs composite showed the highest complex viscosity. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
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