Novel vegetable biolubricants containing ionic liquid
Year: 2024
Type: article
Abstract: Novel biolubricants based on vegetable avocado oils modified by the ionic liquid diethylmethylammonium methanesulfonate (IL), were investigated. Neat (Av) and epoxidized avocado (EAv) oils with 1 wt% IL were studied in a metal-ceramic tribopair under pin-on-disc configuration. The best tribological performance was found for the EAv+ 1 %IL oil, with higher viscosity, and friction coefficient and wear rate up to 74.5 % and 98.8 % lower than that of neat lubricants. The presence of IL and epoxidized oil tribofilm inside the wear tracks was confirmed using X-ray photoelectronic spectroscopy. These results highlight the potential use of ionic liquids as efficient additives in biolubricant oils. • Epoxidized avocado oil with high thermal oxidation resistance was synthesized. • Novel lubricants based on avocado oils were prepared by adding 1 wt% of ionic liquid. • EAv+ 1 %IL oil had higher viscosity, reducing friction & wear by up to 74.5 & 98.8 %. • Tribofilm formation and load carrying ability yielded good tribological performance.
Source: Tribology International
Institution: Universidad Politécnica de Cartagena
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $5,230
OpenAlex ID: W4403148003