Effect of compatibilizer on morphology,thermal, and rheological properties of polypropylene/functionalized multi‐walled carbon nanotubes composite |
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| Authors: | Sang Hyun Jin Chang Heon Kang Kwan Han Yoon Dae Suk Bang Young‐Bin Park |
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| Affiliation: | 1. Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 730‐701, Korea;2. Department of Industrial and Manufacturing Engineering, FAMU‐FSU College of Engineering, Tallahassee, Florida 32310‐6046 |
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| Abstract: | 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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| Keywords: | polypropylene nanocomposites compatibilization morphology rheology |
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