Tribological Property Modification Profiling Of Palm Oil Through Addition Of Zinc Dialkyldithiophosphate (ZDDP)

Rodwan, Muhammad Rohaizad (2016) Tribological Property Modification Profiling Of Palm Oil Through Addition Of Zinc Dialkyldithiophosphate (ZDDP). Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Mineral oil lubricant was harmful towards the environment due to its difficulty in disposal process and non renewable. Vegetable oil was chosen as a candidate to replace mineral oil lubricant because it has properties such as bio-degradable, non-toxic and renewable. This study is conducted in order to develop a new formulated lubricant using palm oil induced with Zinc Dialkyldithiophosphate (ZDDP). This ZDDP and palm oil were blended and was inserted into bottle to be immersed in a water bath at 50 °C for 20 minutes. The palm oil was added with 0wt%, 0.5wt%, 1.0wt%, 1.5wt%, 2.0wt% and 2.5wt% of ZDDP. This new formulated lubricant was tested and characterized using standard laboratory test method in order to determine metal content, kinematic viscosity, coefficient of friction and wear scar diameter. After testing and characterization, it was found that 2 wt% amount concentration of ZDDP that was added into palm oil gives the best results. For the kinematic viscosity, 2 wt% gives the lowest kinematic viscosity result which is 42.50 cSt. Meanwhile, the coefficient of friction and wear scar diameter obtained from the 2 wt% was the lowest result which is 0.069 and 80.28 μm respectively. Furthermore, this new lubricant with 2 wt% of ZDDP possesses 0.069 of coefficient of friction and 80.28 μm of wear scar diameter which are lower compared to SAE 15W-40 which possess 0.075 of coefficient of friction and 91.44 μm of wear scar diameter. To conclude, this had proved that 2 wt% amount concentration of ZDDP is to be the most desirable concentration of additive to be added into palm oil and highly potential to replace mineral based lubricant.

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