Tribological properties of borate ionic liquids with low corrosion grade and excellent thermal stability in 500N base oil
Two borate ionic liquids 1‐Butyl‐3‐(2‐methoxy‐2‐oxoethyl)‐imidazole bis(mandelato)‐borate [MABIM][BMB]) and 1,3‐Dioctylbenzotriazole bis(mandelato)‐borate ([DOBI][BMB]) were synthesised and utilised as the lubricating additives. Their corrosion degrees were measured and the results show that [DOBI][...
Gespeichert in:
Veröffentlicht in: | Lubrication science 2022-10, Vol.34 (6), p.428-439 |
---|---|
Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Two borate ionic liquids 1‐Butyl‐3‐(2‐methoxy‐2‐oxoethyl)‐imidazole bis(mandelato)‐borate [MABIM][BMB]) and 1,3‐Dioctylbenzotriazole bis(mandelato)‐borate ([DOBI][BMB]) were synthesised and utilised as the lubricating additives. Their corrosion degrees were measured and the results show that [DOBI][BMB] and [MABIM][BMB] exhibit remarkable anti‐corrosion properties ([DOBI][BMB]: 1a, [MABIM][BMB]: 1b). The 4‐ball machine was employed to evaluate their tribological properties in 500 N base oil. When [DOBI][BMB] and [MABIM][BMB] were added at the concentration of 3.0 wt%, the friction coefficient of 500 N was reduced by 37.5% and 29.5%. It can be concluded from the results of XPS and SEM that a lubricating film containing iron oxide, B2O3 and organic N‐containing compounds have formed. And a model is proposed so as to describe the lubricating mechanism. |
---|---|
ISSN: | 0954-0075 1557-6833 |
DOI: | 10.1002/ls.1599 |