Rheology of Conductive High Reactivity Carbonaceous Material (HRCM)-Based Ink Suspensions: Dependence on Concentration and Temperature.

Autor:	Dessi C; Clermont Auvergne INP, ICCF, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France., Melis N; Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, 09123 Cagliari, Italy., Desogus F; Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, 09123 Cagliari, Italy., Pilia L; Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, 09123 Cagliari, Italy., Ricciu R; Department of Environmental Civil Engineering and Architecture, University of Cagliari, 09123 Cagliari, Italy., Grosso M; Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, 09123 Cagliari, Italy.
Jazyk:	angličtina
Zdroj:	Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2022 Dec 21; Vol. 13 (1). Date of Electronic Publication: 2022 Dec 21.
DOI:	10.3390/nano13010021
Abstrakt:	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.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu