Two fatty acid anion-based ionic liquids - part I: Physicochemical properties and tribological behavior as neat lubricants - Bournemouth University Staff Profile Pages

Two fatty acid anion-based ionic liquids - part I: Physicochemical properties and tribological behavior as neat lubricants

Authors: Sernaglia, M., Blanco, D., Battez, A.H., Viesca, J.L., González, R., Bartolomé, M.

Journal: Journal of Molecular Liquids

Publication Date: 01/05/2020

Volume: 305

ISSN: 0167-7322

DOI: 10.1016/j.molliq.2020.112827

Abstract:

Two new ionic liquids ([N6,6,6,6][C8:0] and [N6,6,6,6][C16:0]) synthetized from fatty acids through a salt metathesis reaction were both characterized from a physicochemical and tribological point of view. Density, viscosity, corrosion activity and thermal stability tests were performed before making tribological tests under ball-on-disc both unidirectional (with fixed and variable slide-to-roll ratio) and reciprocating configuration. The main results of this work were the following: the longer the length of the alkyl chain of the anion the lower both viscosity and density and higher both viscosity index and thermal stability; these ionic liquids (ILs) are not corrosive; the [N6,6,6,6][C16:0] behaved better changing from elastohydrodynamic to mixed lubrication regime at lower speeds; their antiwear behavior at high load seems depend on their viscosity (for tests made at room temperature) and thermal stability and IL-surface interaction (for tests made at high temperature).

https://eprints.bournemouth.ac.uk/34091/

Source: Scopus