Non-halogenated Ionic Liquid Dramatically Enhances Tribological Performance of Biodegradable OilsShow others and affiliations
2019 (English)In: Frontiers in Chemistry, E-ISSN 2296-2646, Vol. 7, article id 98Article in journal (Refereed) Published
Abstract [en]
It is demonstrated that a phosphonium orthoborate ionic liquid may serve as a wear reducing additive in biodegradable oils at steel-steel surfaces in the boundary lubrication regime. Tribological tests were performed in a ball-on-three plate configuration. A set of surface characterization techniques—SEM/EDS, FIB and white light interferometry were used to characterize surfaces following the tribotests and to observe the formation of any tribofilms. 11B NMR was used to follow changes in the composition of the ionic-liquid-oil blends and to identify boron-containing decomposition products after the tribotests. The ionic liquid reduces the wear of steel surfaces by up to 92% compared to the neat oil at 90°C; it is shown that the reduction in wear can be correlated with the formation of boron enriched patches in the boundary films.
Place, publisher, year, edition, pages
Laussanne: Frontiers Media S.A., 2019. Vol. 7, article id 98
Keywords [en]
NMR, biodegradable oil, boundary lubrication, friction, ionic liquid, wear
National Category
Physical Chemistry
Research subject
Chemistry of Interfaces
Identifiers
URN: urn:nbn:se:ltu:diva-73314DOI: 10.3389/fchem.2019.00098ISI: 000459858200001PubMedID: 30891442Scopus ID: 2-s2.0-85068538860OAI: oai:DiVA.org:ltu-73314DiVA, id: diva2:1299103
Note
Validerad;2019;Nivå 2;2019-03-26 (oliekm)
2019-03-262019-03-262023-09-05Bibliographically approved