Friction and wear-characteristics of base oil derived from re-refined waste oil enhanced with MoS2 nano particle

Sasidaran, Shamalan (2022) Friction and wear-characteristics of base oil derived from re-refined waste oil enhanced with MoS2 nano particle. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This thesis is about to compare the friction and wear characteristics of re-refined base oil with additives and without additives. The additives used in the project is Molydenum Disulphide (MoS2). The main purpose for this project is to identify the tribological properties of re-refined oil with and without additives. Four Ball Tester in Utem used to run the testings and the results were analyzed according to coefficient of friction and wear scar rate. A total of 3 different concentration of MoS2 with base oil were used to run the testings which is (0.25, 0.5 and 0.75 wt%). Each sample was test using 3 different load which is (20, 40 and 60 N). These 3 different sample finally compared with the test run result of the base oil without additives. The surface defect of ball bearing used in this project were analyzed. The obtained results demonstrate that, the MoS2 nanoparticle exhibits good lubrication performance. According to the results, the 0.5wt% concentration recorded the lowest friction and wear rate as compared with base oil without Mos2 nanoparticle. The coefficient of friction and wear scar rate was increases with incleasing load.

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