Melt mixing of polycarbonate/multi-wall carbon nanotube composites

The results show that the nanotube incorporation influences the processing behaviour

Petra Pötschke; Arup R. Bhattacharyya; Andreas Janke; Harald Goering

2004

Scholarcy highlights

  • —Composites of polycarbonate with multi-wall carbon nanotubes of different concentrations are prepared by diluting a PC based masterbatch containing 15 wt% MWNT using melt mixing in a DACA-Micro Compounder
  • Atomic Force Microscopy and visual observations of the composite dispersions in a PC-solvent were used to characterise the state of MWNT dispersion
  • Differential Scanning Calorimetry and Dynamic Mechanical Analysis were applied to detect changes in the glass transition temperature of PC as a result of processing and of MWNT interactions with the PC matrix including the state of dispersion
  • The results show that the nanotube incorporation influences the processing behaviour
  • This effect leads to changes in the glass transition temperature and modulus which counteracts the effects originating from the nanotube-polymer interaction
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