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Evaluation of tribological properties of sesame oil as biolubricant with SiO2 nanoparticles and imidazolium-based ionic liquid as hybrid additives

Publication Type : Journal Article

Publisher : SAGE Publications

Source : Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, SCI (Impact factor 1.31), SAGE Publications Sage UK: London, England, Volume 233, Issue 9, p.1306–1317 (2019)

Url : https://journals.sagepub.com/doi/abs/10.1177/1350650119837831

Keywords : Antiwear, biolubricants, Density functional theory, Ionic liquids, nanoparticle, sesame oil

Campus : Amritapuri

School : School for Sustainable Futures, School of Engineering

Department : Mechanical Engineering

Year : 2019

Abstract : The renewability and ecofriendly nature of vegetable oils make them a competitive candidate to replace depleting petroleum-based mineral oils. However, the poor antiwear properties of vegetable oils restrict them from many industrial applications as lubricants. In the present work, the synergic effect of SiO2 nanoparticles with ionic liquids 1-butyl-3- methylimidazolium tetrafluoroborate and 1-hexyl-3-methylimidazolium tetrafluoroborate as hybrid antiwear additives in enhancing the tribological properties of sesame oil is studied for steel on steel contacts. Morphologies of the worn surfaces and possibilities of tribofilm formation are examined using a field-emission scanning electron microscope and energy-dispersive spectroscopy analysis. A density functional theory analysis is performed to study the existence of intermolecular forces of attraction between ionic liquid and triglyceride molecules. Rheological properties of the blends are evaluated using Anton Paar MCR10 rheometer. Corrosive properties of the oil blends are studied using copper strip corrosion test (ASTM D130).

Cite this Research Publication : Sabarinath S., Rajendrakumar, P. K., and K. Nair, P., “Evaluation of tribological properties of sesame oil as biolubricant with SiO2 nanoparticles and imidazolium-based ionic liquid as hybrid additives”, Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, SCI (Impact factor 1.31), vol. 233, no. 9, pp. 1306–1317, 2019. (Scopus Q2)

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