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Control of multiwall carbon nanotubes dispersion in polyamide6 matrix: an assessment through electrical conductivity

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Title Control of multiwall carbon nanotubes dispersion in polyamide6 matrix: an assessment through electrical conductivity
 
Creator KODGIRE, PRAVIN V
BHATTACHARYA, ARUP R
BOSE, SURYASARATHI
GUPTA, NITIN
KULKARNI, AJIT R
MISRA, ASHOK
 
Subject nitrogen compounds
electric conductivity
polymers
raman spectroscopy
 
Description The homogeneous dispersion of carbon nanotubes (CNT) remains a hindrance in exploiting the exceptional properties associated with CNT in polymer/CNT composites. Here we present for the first time the key role of sodium salt of 6-aminohexanoic acid (Na-AHA) in assisting debundling the multiwall carbon nanotubes (MWNT) through specific interactions leading to homogeneous dispersion within polyamide6 (PA6) matrix during melt-mixing. The composite fabricated via this route exhibits low electrical percolation threshold of 0.5 wt% at room temperature, the lowest reported value in this system so far. FTIR and Raman spectroscopy reveal the existence of 'cation-π' interaction between Na-AHA and MWNT. The phenomenon of reactive coupling between amine functionality of Na-AHA and acid end group of PA6 during melt-mixing is also established.
Copyright to Elsevier Publishers
 
Publisher Elsevier
 
Date 2007-02-26T16:47:39Z
2011-11-25T12:19:41Z
2011-12-26T13:05:47Z
2011-12-27T05:53:27Z
2007-02-26T16:47:39Z
2011-11-25T12:19:41Z
2011-12-26T13:05:47Z
2011-12-27T05:53:27Z
2006
 
Type Article
 
Identifier Chemical Physics Letters 432(4-6), 480-485
0009-2614
http://dx.doi.org/doi:10.1016/j.cplett.2006.10.088
http://hdl.handle.net/10054/48
http://dspace.library.iitb.ac.in/xmlui/handle/10054/48