Influence of temperature on dielectric properties of PA-12/CNT composites

Sophie Versavaud (1) , Gilles Régnier (1) , Michel Vincent (2)

1 PIMM - Laboratoire Procédés et Ingénierie en Mécanique et Matériaux
2 CEMEF - Centre de Mise en Forme des Matériaux

Polyamide12 (PA12)/multiwalled nanotubes (MWNT) composites were characterized in terms of complex permittivity and conductivity. Measurements were achieved on a LCR meter in a frequency range between 102 and 106 Hz. Samples were placed between plate-plate geometry electrodes and heated at temperature higher than melt temperature. Electrical and dielectric properties show different behaviours depending of the MWNT content, implying that different conduction mechanisms are involved.

Mots clés: carbon nanotubes; conducting polymers; electrical conductivity; electrodes; filled polymers; nanocomposites; permittivity

Domaines: Matériaux

Sophie Versavaud, Gilles Régnier, Michel Vincent. Influence of temperature on dielectric properties of PA-12/CNT composites. 2010 10th IEEE International Conference on Solid Dielectrics (ICSD), Jul 2010, Potsdam, Germany. 4 p., ⟨10.1109/ICSD.2010.5568058⟩. ⟨hal-00570591⟩