Academic Journal
Tribological performance of three fatty acid anion-based ionic liquids (FAILs) used as lubricant additive
| العنوان: | Tribological performance of three fatty acid anion-based ionic liquids (FAILs) used as lubricant additive |
|---|---|
| المؤلفون: | Rivera Rellán, Noelia, Blanco, David, Viesca, José Luis, Fernandez-Gonzalez, Alfonso, González Rodríguez, Rubén, Hernández Battez, Antolin |
| المصدر: | Journal of Molecular Liquids, 296, 111881, (2019-10-07) |
| بيانات النشر: | Zenodo |
| سنة النشر: | 2019 |
| المجموعة: | Zenodo |
| مصطلحات موضوعية: | Ionic liquid Friction Wear Lubricant additive |
| الوصف: | This paper studies the tribological behavior of three fatty acid anion-based ionic liquids: methyltrioctylammonium octanoate ([N8881][C8:0]), methyltrioctylammonium laurate ([N8881][C12:0]) and methyltrioctylammonium palmitate ([N8881][C16:0]) used as additive at 0.5, 1 and 2 wt% in an ester base oil. The tribological experiments were performed in two different tribometers: a Bruker UMT-3 using a reciprocating “ball-on-disc” configuration for pure sliding tests and a Mini Traction Machine (MTM) for rolling/sliding tests. After sliding tests, the wear scar was analyzed by scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) and X-ray photoelectron spectroscopy (XPS). Sliding tests results showed both friction and wear reduction of the mixtures with respect to the ester only at 25 ºC. The worse tribological behavior at 100 ºC could be attributed to the moderate thermal stability of these ionic liquids. Under rolling/sliding conditions, samples displayed similar antifriction and ECR behavior than the base oil at high speeds, changing to a higher friction and lower ECR at low speeds and increasing temperatures. EDX analysis showed mainly the steel disc elements. The XPS oxygen signal showed higher amount of C=O bond on the worn surface after reciprocating tests at 25 ºC, which could be attributable to IL-surface interaction and can explain the better wear reduction performance. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | https://doi.org/10.1016/j.molliq.2019.111881; oai:zenodo.org:10514574; https://hdl.handle.net/10651/53874 |
| DOI: | 10.1016/j.molliq.2019.111881 |
| الاتاحة: | https://doi.org/10.1016/j.molliq.2019.111881 https://hdl.handle.net/10651/53874 |
| Rights: | info:eu-repo/semantics/openAccess ; Creative Commons Attribution 4.0 International ; https://creativecommons.org/licenses/by/4.0/legalcode |
| رقم الانضمام: | edsbas.F9F43035 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.molliq.2019.111881 |
|---|