Thermal, rheological and electrical analysis of MWCNTs/epoxy matrices

Mathieu Fogel (1, 2) , Patricia Parlevliet (1) , Matthias Geistbeck (1) , Philippe Olivier (3) , Eric Dantras (2)

1 Airbus Group [Germany]
2 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux
3 ICA - Institut Clément Ader

In this study, the cure kinetics, rheological and electrical behaviors of the MWCNTs/epoxy nanocomposites produced using a three-roll mill are studied. After defining the domain of linear response, the influence of temperature and MWCNTs on the shear viscosity has been investigated. The shear-thinning effect caused by adding CNTs to the epoxy matrix is more pronounced at increased temperature and MWCNT weight content. Furthermore, a mechanical manifestation of the percolation phenomenon may have been observed. At last the electrical conductivity was investigated to characterize the percolation behavior and determine the best CNT content/electrical properties ratio.

Mots clés: D. RheologyB. Electrical properties; A. Carbon Nanotubes; B. Curing; A. Nano composites

Domaines: Matériaux; Matériaux

Mathieu Fogel, Patricia Parlevliet, Matthias Geistbeck, Philippe Olivier, Eric Dantras. Thermal, rheological and electrical analysis of MWCNTs/epoxy matrices. Composites Science and Technology, 2015, vol. 110, pp. 118-125. ⟨10.1016/j.compscitech.2015.02.002⟩. ⟨hal-01131812⟩