Electrical and Piezoelectric Behavior of Polyamide/PZT/CNT Multifunctional Nanocomposites

Delphine Carponcin (1) , Eric Dantras (1) , Jany Dandurand (1) , Gwenaëlle Aridon (2) , Franck Levallois (2) , Laurent Cadiergues (3) , Colette Lacabanne (1)

1 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux
2 EADS - European Aeronautic Defense and Space
3 CNES - Centre National d'Études Spatiales [Toulouse]

Three-phase polyamide 11 (PA 11)/lead zirconate titanate (PZT)/carbon nanotubes (CNT) composites are elaborated by extrusion. The influence of inorganic particles on the electrical properties of conductive composites and the influence of conductive particles on the ferroelectric properties of organic/inorganic composites are both studied. Inorganic particles do not modify the establishment of the electrical percolation path of CNTs either regarding the percolation threshold value or the conductivity reached above this insulator–conductive transition. The dielectric permittivity of twophase PA 11/PZT composites is improved with the addition of only 0.2% in volume of CNTs. This three-phase composite could be proposed for actuation, energy harvesting and damping performances enhancement.

Mots clés: Electrical; Piezoelectric -Polyamide; Nanocomposites; PZT -CNT; Multifunctional Nanocomposites

Domaines: Matériaux; Matériaux

Delphine Carponcin, Eric Dantras, Jany Dandurand, Gwenaëlle Aridon, Franck Levallois, et al.. Electrical and Piezoelectric Behavior of Polyamide/PZT/CNT Multifunctional Nanocomposites. Advanced Engineering Materials, 2014, 16 (8), pp.1018-1025. ⟨10.1002/adem.201300519⟩. ⟨hal-03464934⟩