Faes, J., Gonzalez, R., Hernandez Battez, A., Blanco, D., Fernandez-Gonzalez, A. and Viesca Rodriguez, J.L., 2021. Friction, wear and corrosion behavior of environmentally-friendly fatty acid ionic liquids. Coatings, 11 (1), -.
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Abstract
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This research deals with the tribological behavior and corrosion performance of three novel fatty acid anion-based ionic liquids (FAILs): methyltrioctylammonium hexanoate ([N8,8,8,1 ][C6:0 ]), methyltrioctylammonium octadecanoate ([N8,8,8,1 ][C18:0 ]) and methyltrioctylammonium octadec-9-enoate ([N8,8,8,1 ][C18:1 ]), employed for the first time as neat lubricant with five different material pairs: steel–steel, steel–aluminum alloy, steel–bronze, steel–cast iron and steel–tungsten carbide. These novel substances were previously obtained from fatty acids via metathesis reactions, identified struc-turally via NMR (nuclear magnetic resonance) and FTIR (Fourier-transform infrared spectroscopy) techniques, and then characterized from a physicochemical (density, water solubility, viscosity, viscosity index and refractive index) and environmental (bacterial toxicity and biodegradability) points of view. The corrosion behavior of the three FAILs was studied by exposure at room temperature, while friction and wear tests were performed with a reciprocating ball-on-disc configuration. The main results and conclusions obtained were: (1) Corrosion in the presence of the three FAILs is observed only on the bronze surface; (2) All FAILs presented similar tribological behavior as lubricants for each tested material pair; (3) XPS (X-ray photoelectron spectroscopy) analysis indicated that the surface behavior of the three FAILs in each material pair was similar, with low chemical interaction with the surfaces.
Item Type: | Article |
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ISSN: | 2079-6412 |
Additional Information: | This article belongs to the Special Issue Recent Advances in Green Tribology |
Uncontrolled Keywords: | lubrication; ionic liquids; fatty acids; wear; friction |
Group: | Faculty of Science & Technology |
ID Code: | 35063 |
Deposited By: | Symplectic RT2 |
Deposited On: | 18 Jan 2021 10:58 |
Last Modified: | 14 Mar 2022 14:25 |
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