On the Dispersion of Carbon Nanofibre-Based Suspensions in Simple Shear: An Experimental Study
| Autor: | Carla Leer, Olga S. Carneiro, Ferrie W.J. van Hattum, Senentxu Lanceros-Méndez |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
010302 applied physics
Materials science Nanocomposite Carbon nanofiber Mechanical Engineering 02 engineering and technology Epoxy 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Simple shear Rheology Mechanics of Materials Electrical resistivity and conductivity Agglomerate visual_art 0103 physical sciences Dispersion (optics) visual_art.visual_art_medium General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Materials Science Forum. :192-196 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.587-588.192 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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