Abstract
The performance of a biolubricant especially palm oil is well known to be lower than a mineral oil lubricant. Due to a huge demand towards sustainability, it is extremely important to make an effort for biolubricant to be competitive at the same shelf as the mineral oil in the world’s lubricants market. In this study, tribological properties of the palm oil biolubricant modified with Titanium Oxide (TiO2) nanoparticles as additives were investigated. Palm oil biolubricant with TiO2 nanoparticles at weight ratios of 0 to 0.2 wt% were mixed using an ultrasonic technique. The viscosity of biolubricant modified additives was conducted using standard of ASTMD445. The tribological behavior was investigated using a four-ball tribotester. Results indicate that the viscosities of samples increased as the weight percentage of the TiO2 nanoadditives increased for both 40°C and 100°C temperatures Sample of lubricant with 0.1% wt of the TiO2 nanoadditives produced the lowest coefficient of friction (COF) and wear scar diameter.
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