Paiman, Zulhanafi and Syahrullail, Samion and Zaharudin, Nur Faizin (2023) Tribological performance of trimethylolpropane ester bio-lubricant enhanced by graphene oxide nanoparticles and oleic acid as a surfactant. Tribology International, 183 (NA). NA. ISSN 0301-679X
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Official URL: http://dx.doi.org/10.1016/j.triboint.2023.108398
Abstract
One of the issues of nanoparticle additives is the tendency to agglomerate. The presence of a surfactant may help reduce this issue. In this study, trimethylolpropane (TMP) ester was used as a base lubricant, graphene oxide (GO) as a nanoparticle additive, and oleic acid (OA) as a surfactant. Tribological testing was carried out using a four-ball tribotester at various concentration ratios. The results showed that the TMP + GO + OA demonstrated increased dispersion stability compared to TMP + GO alone. Furthermore, the presence of OA reduced the coefficient of friction of the samples containing 0.05 wt%, 0.1 wt%, and 0.5 wt% GO by 22.9%, 21.1%, and 23.6%, respectively. Surface roughness and physical wear conditions were also observed and discussed.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | bio-based lubricant, nanoparticle, surfactant, tribology, trimethylolpropane |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Mechanical Engineering |
| ID Code: | 107481 |
| Deposited By: | Yanti Mohd Shah |
| Deposited On: | 23 Sep 2024 03:00 |
| Last Modified: | 23 Sep 2024 03:00 |
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