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Low percolation thresholds of electrical conductivity and rheology in poly(ethylene terephthalate)through the networks of multi-walled carbon nanotubes

Material type: TextSeries: ; Polymer, 47(1), p.480-488, 2006Contained works:
  • Hu, G
  • Zhao, C
  • Zhang, S
  • Yang, M
  • Wang, Z
Subject(s): Online resources: Abstract: Coagulation method was first used to prepare nanocomposites of multi-wall carbon nanotubes (MWNT)and poly(ethylene terephthalate)(PET). The morphology of nanocomposites is characterized using transmission electronic microscopy and scanning electronic microscopy. A coating on MWNT by PET chains is observed by comparison of micrographs of purified MWNT and MWNT encapsulated by PET chains in the nanocomposites, and this coating is considered as evidence of interfacial interaction between MWNT and PET chains. Both electrical conductivity and rheological properties have been well characterized. With increasing MWNT loading, the nanocomposites undergo transition from electrically insulative to conductive at room temperature, while the melts show transition from liquid-like to solid-like viscoelasticity. The percolation threshold of 0.6 wt
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Coagulation method was first used to prepare nanocomposites of multi-wall carbon nanotubes (MWNT)and poly(ethylene terephthalate)(PET). The morphology of nanocomposites is characterized using transmission electronic microscopy and scanning electronic microscopy. A coating on MWNT by PET chains is observed by comparison of micrographs of purified MWNT and MWNT encapsulated by PET chains in the nanocomposites, and this coating is considered as evidence of interfacial interaction between MWNT and PET chains. Both electrical conductivity and rheological properties have been well characterized. With increasing MWNT loading, the nanocomposites undergo transition from electrically insulative to conductive at room temperature, while the melts show transition from liquid-like to solid-like viscoelasticity. The percolation threshold of 0.6 wt

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