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Tribological behavior of oils additised with a phosphonium-derived ionic liquid compared to a commercial oil.

Bartolomé Sáez, M., Hernandez Battez, A., Espina Casado, J., Viesca Rodriguez, J.L., Fernandez-Gonzalez, A. and González Rodriguez, R., 2020. Tribological behavior of oils additised with a phosphonium-derived ionic liquid compared to a commercial oil. Industrial Lubrication and Tribology.

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DOI: 10.1108/ILT-05-2020-0179


Purpose: The purpose of this paper is to study the antifriction, antiwear and tribolayer formation properties of the trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl) phosphinate ionic liquid (IL) as additive at 1 wt.% in two base oils and their mixtures, comparing the results with those of a commercial oil. Design/methodology/approach: The mixture of the base oils used in the formulation of the commercial oil SAE 0W20 plus the IL was tested under rolling/sliding and reciprocating conditions to determine the so-called Stribeck curve, the tribolayer formation and the antifriction and antiwear behaviors. Findings: The use of this IL as additive in these oils does not change their viscosity; improves the antifriction and antiwear properties of the base oils, making equal or outperforming these properties of the SAE 0W20; and the thickness and formation rate of the tribolayer resulting from the IL-surface interaction is highly dependent on the type of base oil and influence on the friction and wear results. Originality/value: The use of this IL allows to replace partial or totally commercial antifriction and antiwear additives. Peer review: The peer review history for this article is available at:

Item Type:Article
Uncontrolled Keywords:Additive; antiwear; antifriction; phosphonium-derived ionic liquid
Group:Faculty of Science & Technology
ID Code:34530
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:09 Sep 2020 10:59
Last Modified:09 Sep 2020 10:59


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