Maria Dolores Setzu
Rheology of Conductive High Reactivity Carbonaceous Material (HRCM)-Based Ink Suspensions: Dependence on Concentration and Temperature
Melis, Nicola;Desogus, Francesco
;Pilia, Luca;Ricciu, Roberto;Grosso, MassimilianoLast
2023-01-01
Abstract
The present case study reports a shear rheological characterization in the temperature domain of inks and pastes loaded with conductive High Reactivity Carbonaceous Material (HRCM) consisting mainly of few-layers graphene sheets. The combined effect of filler concentration and applied shear rate is investigated in terms of the shear viscosity response as a function of testing temperature. The non-Newtonian features of shear flow ramps at constant temperature are reported to depend on both the HRCM load and the testing temperature. Moreover, temperature ramps at a constant shear rate reveal a different viscosity-temperature dependence from what is observed in shear flow ramps while maintaining the same filler concentration. An apparent departure from the well-known Vogel-Fulcher-Tamman relationship as a function of the applied shear rate is also reported.File | Size | Format | |
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nanomaterials-13-00021-v2.pdf open access
Description: articolo online
Type: versione editoriale
Size 2.04 MB
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2.04 MB | Adobe PDF | View/Open |
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