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Polymer Bulletin

, Volume 70, Issue 8, pp 2387–2398 | Cite as

On the dispersion of CNTs in polyamide 6 matrix via solution methods: assessment through electrical, rheological, thermal and morphological analyses

  • Fathollah Pourfayaz
  • Seyed-Hassan JafariEmail author
  • Abbas Ali Khodadadi
  • Yadollah Mortazavi
  • Hossein Ali Khonakdar
Polymer Synthesis/Mechanism

Abstract

In this study, polyamide 6 (PA 6)/multi-walled carbon nanotube (MWCNT) nanocomposites were prepared by different solution methods based on phase inversion, drop-casting and simple evaporation processes. Optical microscopy and field emission scanning electron microscopy techniques were used to investigate the dispersion states of the nanotubes in PA 6 matrix. The results indicated that the dispersion state of MWCNTs in the nanocomposites prepared by the phase inversion-based method was better than those in the nanocomposites prepared by the other two methods. Electrical, rheological, differential scanning calorimetry and thermo-gravimetric analysis measurements showed that the PA 6/MWCNTs nanocomposites prepared by the phase inversion-based method had higher electrical conductivity, storage modulus, crystallization temperature and thermal stability in comparison with those prepared by the other two methods, attributed to the better dispersion state of MWCNTs. These results confirmed achievement of a good dispersion state of MWCNTs within PA 6 matrix by the phase inversion-based efficient approach.

Keywords

Carbon nanotubes Polyamide 6 Nanocomposites Dispersion of CNTs Morphology 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Fathollah Pourfayaz
    • 1
  • Seyed-Hassan Jafari
    • 2
    Email author
  • Abbas Ali Khodadadi
    • 3
  • Yadollah Mortazavi
    • 4
  • Hossein Ali Khonakdar
    • 5
  1. 1.Department of Renewable Energies and Environment, Faculty of New Sciences and TechnologiesUniversity of TehranTehranIran
  2. 2.School of Chemical EngineeringUniversity of TehranTehranIran
  3. 3.Catalysis and Nanostructured Materials Research Laboratory, School of Chemical EngineeringUniversity of TehranTehranIran
  4. 4.Nanoelectronics Centre of ExcellenceUniversity of TehranTehranIran
  5. 5.Iran Polymer and Petrochemical InstituteTehranIran

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