On the Dispersion of Carbon Nanofibre-Based Suspensions in Simple Shear: An Experimental Study

Abstract:

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The effect of different dispersion states on the rheological and AC conductivity properties of carbon nanofibre/epoxy suspensions was investigated. Both rheological and electrical properties revealed to be good indicators of the fillers’ dispersion state, as confirmed by optical microscopy. It was shown that imposing a low shear deformation to poorly dispersed suspensions leads to agglomerate rearrangement resulting in a worse dispersion quality and, consequently, lower electrical conductivity. On the other hand, the imposition of a high shear deformation improves the original dispersion, resulting in better electrical conductivity. Rheological observations confirm the trends observed.

Info:

Periodical:

Materials Science Forum (Volumes 587-588)

Edited by:

António Torres Marques, António Fernando Silva, António Paulo Monteiro Baptista, Carlos Sá, Fernando Jorge Lino Alves, Luís Filipe Malheiros and Manuel Vieira

Pages:

192-196

DOI:

10.4028/www.scientific.net/MSF.587-588.192

Citation:

C. Leer et al., "On the Dispersion of Carbon Nanofibre-Based Suspensions in Simple Shear: An Experimental Study", Materials Science Forum, Vols. 587-588, pp. 192-196, 2008

Online since:

June 2008

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$35.00

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