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2004 | 2 | 2 | 363-370

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Segregated network polymer/carbon nanotubes composites


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In this work we present the preparation of conductive polyethylene/carbon nanotube composites based on the segregated network concept. Attention has been focused on the effect of decreasing the amount of filler necessary to achieve low resistivity. Using high- and low-grade single-walled carbon nanotube materials we obtained conductive composites with a low percolation threshold of 0.5 wt.% for high-grade nanotubes, about 1 wt% for commercial nanotubes and 1.5 wt% for low-grade material. The higher percolation threshold for low-grade material is related to low effectiveness of other carbon fractions in the network formation. The electrical conductivity was measured as a function of the single-walled carbon nanotubes content in the polymer matrix and as a function of temperature. It was also found that processing parameters significantly influenced the electrical conductivity of the composites. Raman spectroscopy was applied to study single wall nanotubes in the conductive composites.










Physical description


1 - 6 - 2004
1 - 6 - 2004


  • Department of Molecular Physics, Technical University of Lodz, 90-924, Lodz, Poland
  • Federal Institute of Materials Research and Testing, D-12200, Berlin, Germany
  • Federal Institute of Materials Research and Testing, D-12200, Berlin, Germany
  • Lab. de Materiaux Polymere et de Biomateriaux, UCB-Lyon 1, 69622, Villeurbanne, France


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