Different amounts of multi-walled carbon nanotubes (MWCNT) were incorporated into an epoxy mixture composed of TetraGlycidyl-MethyleneDiAnilina (TGMDA) and 1-4 Butandioldiglycidylether (BDE). The epoxy mixture was cured with 4,4'-diamino diphenil sulfone. Scanning electron microscopy (SEM) shows a good level of the nanofiller dispersion in the polymeric matrix. Electrical conductivity DC data furnishes a predicted percolation threshold of 0.22% of MWCNT inclusion. The acceptability of the predicted value is confirmed by the AC behaviour of the electrical property. The obtained exponent of the percolation law suggests a 3D organization of the percolating structure.
Electrical Properties of Multi-Walled Carbon Nanotube/Tetrafunctional Epoxy-Amine Composites.
DE VIVO, BIAGIO;GUADAGNO, Liberata;LAMBERTI, PATRIZIA;RAIMONDO, MARIALUIGIA;SPINELLI, GIOVANNI;TUCCI, Vincenzo;VERTUCCIO, LUIGI;VITTORIA, Vittoria
2012-01-01
Abstract
Different amounts of multi-walled carbon nanotubes (MWCNT) were incorporated into an epoxy mixture composed of TetraGlycidyl-MethyleneDiAnilina (TGMDA) and 1-4 Butandioldiglycidylether (BDE). The epoxy mixture was cured with 4,4'-diamino diphenil sulfone. Scanning electron microscopy (SEM) shows a good level of the nanofiller dispersion in the polymeric matrix. Electrical conductivity DC data furnishes a predicted percolation threshold of 0.22% of MWCNT inclusion. The acceptability of the predicted value is confirmed by the AC behaviour of the electrical property. The obtained exponent of the percolation law suggests a 3D organization of the percolating structure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
