Control of multiwall carbon nanotubes dispersion in polyamide6 matrix: an assessment through electrical conductivity
DSpace at IIT Bombay
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Title |
Control of multiwall carbon nanotubes dispersion in polyamide6 matrix: an assessment through electrical conductivity
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Creator |
KODGIRE, PRAVIN V
BHATTACHARYA, ARUP R BOSE, SURYASARATHI GUPTA, NITIN KULKARNI, AJIT R MISRA, ASHOK |
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Subject |
nitrogen compounds
electric conductivity polymers raman spectroscopy |
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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 |
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Publisher |
Elsevier
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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 |
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Type |
Article
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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 |
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