Anti-wear performance of palm-based oil mixed with green additive

Lau, Eng Xiang (2021) Anti-wear performance of palm-based oil mixed with green additive. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The wide uses of mineral lubricants in several industries have raise the environmental issues due to the accidental leakage to environment during the operation. Therefore, researches about bio-based lubricants have been promoted to substitute mineral lubricants due to its environment friendly properties. Nevertheless, bio-lubricants exhibits inferior oxidation, thermal stability and poor fluid flow behavior compared to mineral lubricants. Hence, additive becomes one of the solutions to improve the properties of the bio-lubricants. In this article, the anti-wear performance of palm-based oil blended with hexagonal boron nitride (hBN) is examined from the perspective of Coefficient of Friction and Wear Scar Diameter. Moreover, the outcomes obtained will be utilized to compare with the results of previous studies. The tribological performance of all the samples were tested by four-ball tester machine in accordance with standard of ASTM D4172. There are several combinations of samples used in comparison such as bio-based lubricant with green additive, bio-based lubricant with ordinary additive, ordinary lubricant with green additive, refined bio-based lubricant and pure bio-based lubricant only. As a result, sample of Trimethylolpropane3 (TMP3) illustrate the best anti wear performance in both COF and WSD. It achieved the lowest value with 0.051 in COF and 0.27mm in WSD. This can be explained that the lubricant film formed by the mixture of ordinary lubricant and palm oil-based TMP ester can effectively improve the anti-wear performance than other samples did.

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