Double hybrid lubricant additives consisting of a phosphonium ionic liquid and graphene nanoplatelets/hexagonal boron nitride nanoparticles
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Título: | Double hybrid lubricant additives consisting of a phosphonium ionic liquid and graphene nanoplatelets/hexagonal boron nitride nanoparticles |
Autor/a: | Nasser, Khodor I. Liñeira del Río, José Manuel Mariño Fernández, Fátima López Iglesias, Enriqueta Fernández Pérez, Josefa |
Centro/Departamento: | Universidade de Santiago de Compostela. Departamento de Física Aplicada |
Palabras chave: | Lubricant additive | Nanomaterials | Ionic liquids | Hybrid additives | |
Data: | 2021 |
Editor: | Elsevier |
Cita bibliográfica: | Tribology International 2021, 163:107189. https://doi.org/10.1016/j.triboint.2021.107189 |
Resumo: | Tribological performance of polyalphaolefin 32, PAO, is investigated by adding two nanomaterials (graphene nanoplatelets, GnP, and hexagonal boron nitride nanoparticles, h-BN) and an ionic liquid ([P6,6,6,14][DEHP], IL1, [P2,4,4,4][DEP], IL2, or [P6,6,6,14][(iC8)2PO2], IL3). Designed double hybrid nanodispersions are PAO/1 wt% ILX/0.05 wt% GnP/0.1 wt% h-BN (X = 1, 2 or 3). The best anti-friction behavior corresponds to PAO/IL3/GnP/h-BN (40% reduction compared to that achieved with PAO). Anti-wear behavior is similar for the three double hybrid nanodispersions. Roughness of the worn surface tested with PAO is higher than that obtained for each of the nanodispersions. Tribo-film formation and repair effect on worn surfaces due to ILs and nanoparticles are revealed. Some positive synergies were found between each IL and GnP/h-BN as hybrid PAO additives |
Versión do editor: | https://doi.org/10.1016/j.triboint.2021.107189 |
URI: | http://hdl.handle.net/10347/26718 |
DOI: | 10.1016/j.triboint.2021.107189 |
Dereitos: | © 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Attribution-NonCommercial-NoDerivatives 4.0 Internacional |
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