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Effectiveness of phosphonium cation-based ionic liquids as lubricant additive.

Gonzalez, R., Bartolomé, M, Blanco, D, Viesca Rodriguez, J.L., Fernandez-Gonzalez, A. and Hernandez Battez, A., 2016. Effectiveness of phosphonium cation-based ionic liquids as lubricant additive. Tribology International, 98, 82 - 93.

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DOI: 10.1016/j.triboint.2016.02.016


Two phosphonium cation-based ionic liquids (ILs) were studied as additive to a mineral oil. Solubility tests and TGA of neat samples were performed. Three concentrations of the ILs were used in the tribological tests. Base oil-ZDDP mixtures were used as comparison samples. Tribological tests were made using a reciprocating ball-on-disc configuration. Load ramp and Stribeck curve tests were also performed. The worn surface was studied by different techniques. The results showed similar and better friction reduction properties for ILs- or ZDDP-containing mixtures than the neat base oil. The [P66614][(iC8)2PO2]-containing mixtures outperformed the antiwear behavior of the other samples. XPS results showed different mechanisms of lubrication when using ILs or ZDDP. © 2016 Elsevier Ltd. All rights reserved.

Item Type:Article
Uncontrolled Keywords:Phosphonium cation-based ionic liquids; additive; friction; wear
Group:Faculty of Science & Technology
ID Code:23792
Deposited By: Symplectic RT2
Deposited On:09 Jun 2016 12:27
Last Modified:14 Mar 2022 13:56


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