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Coupling activity of ionic liquids between diene elastomers and multi-walled carbon nanotubes

Das, A. ; Stöckelhuber, K.W. ; Jurk, R. ; Fritzsche, J. ; Klüppel, M. ; Heinrich, G.

Carbon (New York), 2009-11, Vol.47 (14), p.3313-3321 [Peer Reviewed Journal]

Kidlington: Elsevier Ltd

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  • Title:
    Coupling activity of ionic liquids between diene elastomers and multi-walled carbon nanotubes
  • Author: Das, A. ; Stöckelhuber, K.W. ; Jurk, R. ; Fritzsche, J. ; Klüppel, M. ; Heinrich, G.
  • Subjects: Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Fullerenes and related materials; diamonds, graphite ; Materials science ; Physics ; Specific materials
  • Is Part Of: Carbon (New York), 2009-11, Vol.47 (14), p.3313-3321
  • Notes: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
  • Description: In order to ensure better rubber/multi-walled carbon nanotube (MWCNT) compatibility and to enhance the dispersibility, a series of ionic liquids has been tested in regard to an improved interaction between rubber and carbon nanotubes. We found that in the presence of especially one ionic liquid, namely, 1-allyl-3-methyl imidazolium chloride, for the blend of solution-styrene-butadiene and polybutadiene rubber, used as basic elastomer, a three fold increase of tensile strength was achieved with only ∼3 wt.% MWCNT loading. At this low concentration of MWCNTs the sample can be stretched up to 456% without mechanical failure. The use of this ionic liquid additionally results in higher electrical conductivity (10 −2 S cm −1) at low concentration (<3 wt.%) of MWCNTs. Dynamic mechanical analysis confirmed the specific interaction of CNTs and diene rubber chains by showing an extra relaxation process at relatively higher temperature (∼ T g + 130 K) in the temperature sweep measurements. Raman spectroscopic analysis also supported the specific interaction between MWCNTs and rubber molecules with the help of 1-allyl-3-methyl imidazolium chloride. Transmission electron microscopic images confirm the good dispersion of the MWCNTs along with a ‘cellular’-like structure of the CNTs in the rubber matrix.
  • Publisher: Kidlington: Elsevier Ltd
  • Language: English
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