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Isothermal crystallization behavior of polyamide 6,6/multiwalled carbon nanotube nanocomposites
Author(s) -
Lin ShiYa,
Chen ErhChiang,
Liu KuangYu,
Wu TzongMing
Publication year - 2009
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21495
Subject(s) - materials science , crystallization , nanocomposite , differential scanning calorimetry , nucleation , polyamide , carbon nanotube , chemical engineering , activation energy , nanotube , dispersion (optics) , isothermal process , composite material , polymer chemistry , chemistry , organic chemistry , thermodynamics , physics , optics , engineering
The good dispersion of functionalized multiwalled carbon nanotube (f‐MWCNT) in polyamide 6,6 (PA 6,6) matrix was prepared by solution mixing techniques. The crystalline structure and crystallization behaviors of PA 6,6 and PA 6,6/f‐MWCNT nanocomposites were studied by X‐ray diffraction (XRD), differential scanning calorimetry (DSC), and polarized optical microscopy (POM) analysis. DSC isothermal results revealed that the overall isothermal crystallization rates of PA 6,6 increased as well as the activation energy of PA 6,6 extensively decreased by adding f‐MWCNT into PA 6,6, suggesting that the addition of f‐MWCNT probably induces the heterogeneous nucleation. The effect of f‐MWCNT on the chain arrangement for the crystallization of PA 6,6/f‐MWCNT nanocomposites was also discussed. POLYM. ENG. SCI., 2009. © 2009 Society of Plastics Engineers