Antifriction and Antiwear Properties of an Ionic Liquid with Fluorine-Containing Anion Used as Lubricant Additive.

Blanco, D., Gonzalez, R., Viesca Rodriguez, J.L., Fernandez-Gonzalez, A., Bartolomé, M. and Hernandez Battez, A., 2017. Antifriction and Antiwear Properties of an Ionic Liquid with Fluorine-Containing Anion Used as Lubricant Additive. Tribology Letters, 65 (2), p. 66.

Full text available as:

[img]
Preview
PDF (OPEN ACCESS ARTICLE- SPRINGER COMPACT)
artA10.1007Fs11249-017-0846-4.pdf - Published Version
Available under License Creative Commons Attribution.

1MB

DOI: 10.1007/s11249-017-0846-4

Abstract

Tribological behavior of trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl) imide [P66614][NTf2] ionic liquid (IL) used as additive in a diester oil at concentrations of 0.25, 0.5 and 1 wt% was studied in this research. The IL solubility in the base oil was measured using the inductively coupled plasma mass spectrometry (ICP-MS) technique, and corrosion analysis was done at room temperature at relative humidity of 49–77%. Tribological tests were conducted for 30 min at room temperature, 15 Hz frequency, 4 mm of stroke length, a load of 80 N (corresponding to 2 GPa of maximum contact pressure) and relative humidity of 35–53%. Friction coefficient was recorded during tests, and the wear scar was measured by confocal microscopy. Worn surface was also analyzed by SEM, EDS and XPS. Results showed that a saturated solution of [P66614][NTf2] in the base oil contains about 30 wt% of IL and corrosion activity for the highest concentration of IL (1 wt%) was not found after a 20-day test. Although the base oil and the mixtures had similar friction behavior, only the 1 wt% sample exhibited slightly lower wear volume than the base oil. SEM images exhibited similar wear track width (707–796 µm) and wear mechanism (adhesive) for all samples tested. In addition, the EDS spectra only showed the elements present in the steel. Finally, the XPS measurements could not detect differences regarding iron chemical state among the samples, which is consistent with the tribological behavior obtained.

Item Type:Article
ISSN:1023-8883
Uncontrolled Keywords:Ionic liquid; Friction Wear; Lubricant additive
Group:Faculty of Science & Technology
ID Code:29107
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:24 Apr 2017 14:53
Last Modified:24 Apr 2017 14:53

Downloads

Downloads per month over past year

More statistics for this item...
Repository Staff Only -