PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY

 

e-ISSN 2231-8526
ISSN 0128-7680

Home / Regular Issue / JST Vol. 32 (3) Apr. 2024 / JST-4479-2023

 

Anti-friction and Wear Resistance Performance of Palm Olein Grease with Molybdenum Disulfide Additive

Nadiah Aqilahwati Abdullah, Nurul Farhana Mohd Yusof and Zaidi Mohd Ripin

Pertanika Journal of Science & Technology, Volume 32, Issue 3, April 2024

DOI: https://doi.org/10.47836/pjst.32.3.03

Keywords: Four-ball, friction, MoS2, palm olein grease, wear

Published on: 24 April 2024

In this study, palm olein-based grease with a micro-molybdenum disulfide (MoS2) additive has been developed. The grease was prepared using various MoS2 concentrations to investigate the role of additives in improving grease performance. A four-ball tribological test was conducted to investigate the surface morphology, wear depth, and volume loss of the steel ball. The results indicated that the MoS2 additive reduced the coefficient of friction and wear scar diameter compared to pure palm olein grease. The value of 0.5 wt.% was considered the optimum value, reflecting the best grease performance indicated by low friction coefficient, wear diameter, wear depth, and volume loss. Elemental analysis revealed that the MoS2 additive was deposited onto the wear tracks, improving the surface protection. Thus, this additive was found to have a good potential for improving palm olein-based grease.

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