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Rheological study of new dispersions of Carbon Nanotubes in the ionic liquid 1-ethyl-3-methylimidazolium dicyanamide
dc.contributor.author | Avilés, María Dolores | |
dc.contributor.author | Pamies Porras, Ramón Francisco | |
dc.contributor.author | Arias Pardilla, Joaquín | |
dc.contributor.author | Carrión Vilches, Francisco José | |
dc.contributor.author | Bermúdez Olivares, María Dolores | |
dc.contributor.author | Sanes Molina, José | |
dc.contributor.author | Avilés González, María Dolores | |
dc.date.accessioned | 2019-01-17T10:31:32Z | |
dc.date.available | 2019-01-17T10:31:32Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | R.Pamies, M.D.Avilés, J.Arias-Pardilla, F.J.Carrión, J.Sanes, M.D.Bermúdez. Rheological study of new dispersions of carbón nanotubes in the ionic liquid 1-ethyl-3methylimidazolium dicyanamide. Molliq(2019), https://doi.org/10.1016/j.molliq.2019.01.074 | es_ES |
dc.identifier.issn | 0167-7322 | |
dc.description.abstract | Dispersions of three different types of carbon nanotubes in a 1 wt.% proportion in the low viscosity 1-ethyl-3-methylimidazolium ([EMIM][DCA]) ionic liquid have been obtained. The neat ionic liquid presents Newtonian behavior, but the addition of carbon nanotubes increases the viscosity with respect to [EMIM][DCA] in the following order: Single-Walled Carbon Nanotubes (SWCNTs) > aligned Multi-Walled Carbon Nanotubes (aligned-MWCNTs) > Multi-Walled Carbon Nanotubes (MWCNTs), and the resulting fluids show non-Newtonian behavior. SWCNTs and MWCNTs dispersions present shear thinning with increasing shear rate, but a shear thickening effect for aligned-MWCNTs at intermediate shear rate values at room temperature has been observed. This effect disappears at 100 ºC. The thermal response of the viscosity of [EMIM][DCA] and the CNTs-IL dispersions can be fitted to the Arrhenius model. For[EMIM][DCA] and the dispersion with MWCNTs the viscous behavior prevails at low frequencies, with a cross point at a critical frequency value which decreases with increasing temperature. However, the dispersions of SWCNTs and aligned-MWCNTspresent storage modulus values higher than loss modulus in the whole range of frequency. | es_ES |
dc.description.sponsorship | The authors acknowledge the Ministerio de Economía, Industria y Competitividad (MINECO, Spain), the EU FEDER Program (Grants # MAT2014-55384-P and # MAT2017-85130-P), and Fundación Séneca - Agencia de Ciencia y Tecnología de la Región de Murcia “Ayuda a las Unidades y Grupos de Excelencia Científica de la Región de Murcia (Programa Séneca 2014)” (Grant # 19877/GERM/14), for financial support. M.D. Avilés acknowledges a research fellowship (Grant # BES-2015-074836) to MINECO. | es_ES |
dc.format | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | © 2019 Elsevier Ltd | es_ES |
dc.title | Rheological study of new dispersions of Carbon Nanotubes in the ionic liquid 1-ethyl-3-methylimidazolium dicyanamide | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.subject.other | Ciencia de los Materiales e Ingeniería Metalúrgica | es_ES |
dc.subject | Carbon Nanotubes; ionic liquid; rheology; viscoelasticity; Raman; non-Newtonian fluids. | es_ES |
dc.subject | Carbon Nanotubes | es_ES |
dc.subject | Ionic liquid | es_ES |
dc.subject | Viscoelasticity | es_ES |
dc.subject | Raman | es_ES |
dc.subject | Non-Newtonian fluids | es_ES |
dc.identifier.uri | http://hdl.handle.net/10317/7559 | |
dc.peerreview | Sí. | es_ES |
dc.contributor.investgroup | Ciencia de Materiales e Ingeniería Metalúrgica | es_ES |
dc.identifier.doi | 10.1016/j.molliq.2019.01.074 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es_ES |
dc.relation.projectID | ES/1PE/MAT2014-55384-P | es_ES |
dc.relation.projectID | ES/1PE/MAT2017-85130-P | es_ES |
dc.subject.unesco | 3312 Tecnología de Materiales | es_ES |
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