Protic ammonium bio-based ionic liquid crystal lubricants

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URI: http://hdl.handle.net/10317/11091
ISSN: 0301-679X
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Author
Avilés González, María Dolores; Pamies Porras, Ramón Francisco; Sanes Molina, José; Arias Pardilla, Joaquín; Carrión Vilches, Francisco José; [et al.]
Research Group
Grupo de Ciencia de Materiales e Ingeniería Metalúrgica
Knowledge Area
Ciencia de los Materiales e Ingeniería Metalúrgica
Sponsors
This research was funded by Spanish Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación (AEI) , and the European Union FEDER Program (Grant # MAT2017–85130-P ). “Este trabajo es resultado de la actividad desarrollada en el marco del Programa de Ayudas a Grupos de Excelencia de la Región de Murcia, de la Fundación Seneca, Agencia de Ciencia y Tecnología de la Región de Murcia (Grant # 19877/GERM/15 )”.
Publication date
2021
Publisher
Elsevier
Bibliographic Citation
Aviles Gonzalez, Maria Dolores & Pamies, Ramón & Sanes, J. & Arias-Pardilla, Joaquin & Vilches, Francisco & Bermúdez, M.D.. (2021). Protic ammonium bio-based ionic liquid crystal lubricants. Tribology International. 158. 106917. 10.1016/j.triboint.2021.106917.
Keywords
Protic ionic liquid
Ionic liquid crystal
Lubrication
Friction
Wear
Abstract
Bis(2-hydroxyethyl) ammonium stearate (DES) protic ionic liquid crystal (PILC) has been added in 1 wt% and 2 wt% proportion to di-bis(2-hydroxyethyl) ammonium succinate (DSU) protic ionic liquid (PIL) to obtain (DSU+1%DES) and (DSU+2%DES) lubricant blends. The new blends are non-Newtonian fluids with liquid crystalline domains. Addition of (DES) PILC to (DSU) PIL reduces running-in friction coefficient in more than 70% and prevents surface damage, decreasing wear rate in more than one order of magnitude. Optical profilometry, optical and scanning electron microscopy (SEM), energy dispersive (EDX) and X-ray photoelectron spectroscopy (XPS) have been used to analyze surfaces after the tribological tests.
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Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España