The aim of this work is to analyze the steady-shear rheological behavior and the absolute viscosity of epoxy matrix reinforced with graphene nanoplatelets (xGnP) before cure. Three different grades of xGnP (grades C, M and H) were dispersed homogenously at different weight percentages (wt%) into the epoxy matrix, ranging from 0.5 to 5 wt%. It is found that nanocomposite fluids with xGnP-C exhibit a Newtonian behavior at shear rate in the range 0.1-100 s-1, conversely, nanocomposite fluids with xGnP of grade M and H exhibit a shear-thinning behavior with the increase of nanoplatelet loading. Results from this analysis indicate how the steady shear rheological properties of the nanoreinforced polymer fluids depend on the geometrical characteristics of the graphene nanoplatelets.
Steady-Shear Rheological Properties of Graphene-Reinforced Epoxy Resin for Manufacturing of Aerospace Composite Films / Clausi, Marialaura; Santonicola, Mariagabriella; Laurenzi, Susanna. - STAMPA. - 1736:(2016), pp. 1-4. (Intervento presentato al convegno 8th International Conference on Times of Polymers and Composites: From Aerospace to Nanotechnology tenutosi a Ischia, Italy nel June 19-23, 2016) [10.1063/1.4949599].
Steady-Shear Rheological Properties of Graphene-Reinforced Epoxy Resin for Manufacturing of Aerospace Composite Films
CLAUSI, MARIALAURA;SANTONICOLA, MARIAGABRIELLA;LAURENZI, SUSANNA
2016
Abstract
The aim of this work is to analyze the steady-shear rheological behavior and the absolute viscosity of epoxy matrix reinforced with graphene nanoplatelets (xGnP) before cure. Three different grades of xGnP (grades C, M and H) were dispersed homogenously at different weight percentages (wt%) into the epoxy matrix, ranging from 0.5 to 5 wt%. It is found that nanocomposite fluids with xGnP-C exhibit a Newtonian behavior at shear rate in the range 0.1-100 s-1, conversely, nanocomposite fluids with xGnP of grade M and H exhibit a shear-thinning behavior with the increase of nanoplatelet loading. Results from this analysis indicate how the steady shear rheological properties of the nanoreinforced polymer fluids depend on the geometrical characteristics of the graphene nanoplatelets.| File | Dimensione | Formato | |
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