Addition Of Molybdenum Dithiophosphate (MoDTP) Into Zinc Diamyldithiocarbamate (ZDDC) Induced Corn Oil As Bio-Based Lubricant Substitution

Veljierson, Moses (2016) Addition Of Molybdenum Dithiophosphate (MoDTP) Into Zinc Diamyldithiocarbamate (ZDDC) Induced Corn Oil As Bio-Based Lubricant Substitution. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This study reports the development of a new bio-lubricant by using corn oil induced with Zinc Diamyldithiocarbamate (ZDDC) added with Molybdenum Dithiophosphate (MoDTP). The needs of having an alternative lubricant is essential as the existing mineral based lubricant is non-environmental friendly and imposed a threat to the environment. Six samples were prepared with constant concentration of Zinc Diamyldithiocarbamate (ZDDC) at 2 wt% and varied concentration of Molybdenum Dithiophosphate (MoDTP) at 0.05 wt%, 0.10 wt%, 0.15 wt% and 0.20 wt%. The prepared samples were tested using a Kinematic Viscometer to investigate the kinematic viscosity and Rotating Disc Electrode-Atomic Emission Spectroscopy (RDE-AES) to check for dilution of additive in the samples. Characterization process of investigating the coefficient of friction and wear scar diameter uses a four ball tester. Samples with 2 wt% Zinc Diamyldithiocarbamate (ZDDC) and 0.05 wt% of Molybdenum Dithiophosphate (MoDTP) displayed the most desirable concentration of additive added when it exhibited a coefficient of friction of 0.079 and a very small wear scar diameter at 104 μm. This newly developed bio-lubricant showed a reduction on coefficient of friction when only added with 0.05 wt% of Molybdenum Dithiophosphate (MoDTP) into corn oil with constant concentration of Zinc Diamyldithiocarbamate (ZDDC) at 2 wt% exhibited the desirable tribological characteristics and showed the similar trending on wear scar diameter. As a conclusion, with the evidence based on result obtained this bio-lubricant is capable to fulfill the demand to overcome the problem as a bio-based lubricant substitution which were rarely being studied by others.

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