Descrição
The influence of the dispersion of vapor-grown carbon nanofibers (VGCNF) on the electrical properties of VGCNF/
Epoxy composites has been studied. A homogenous dispersion of the VGCNF does not imply better electrical
properties. In fact, it is demonstrated that the most simple of the tested dispersion methods results in higher
conductivity, since the presence of well-distributed nanofiber clusters appears to be a key factor for increasing
composite conductivity. Foundation for Science and Technology, Lisbon, through the 3° Quadro
Comunitário de Apoio, the POCTI and FEDER programs, projects PTDC/CTM/
69316/2006, PTDC-EME-PME-108859-2008 and NANO/NMed-SD/0156/2007,
and grants SFRH/BD/60623/2009 (JS) and SFRH/BD/41191/2007 (PC). Joint
Luso-American Foundation (FLAD)-NSF U.S. Research Networks Program
research grant (FH and DK). We also thank Albermarle for the hardener,
Hexion Specialty Chemicals for the epoxy resin, and Applied Sciences for
providing their facilities.
; Silva, J. 
