Physicochemical and corrosion properties of polyol ester-commercial motorbike oil blends

Abstract

Modern industry has increased gasoline use, emphasizing the need for engine oil to reduce friction, wear, and heat. Anti-corrosion-based lubricants, especially esters derived from bio-based oils, are of interest because they reduce toxicity and increase biodegradability. This study on bio-lubricants inspects the effects of a bio-lubricant, specifically Pentaerythritol ester, blending with commercial motor oil. The research entailed the combination of commercially available motor oil with Pentaerythritol (PE) ester obtained from Calophyllum inophyllum. The focus is on analyzing the changes in physicochemical properties and optimizing the best blending ratio. The synthesis of Pentaerythritol ester (PE ester) was optimized to attain a complete conversion to long-chain tetra-esters. The blending was conducted using proportions of 10%, 15%, 20%, 25% and 30%. Furthermore, significant emphasis was placed on the meticulous formulation of the bio-lubricant to mitigate the risk of any potential deterioration in its physicochemical properties upon its incorporation with conventional oil. The biolubricant – motor oil blends have optimum performance up to a blending percentage of 20%, beyond which deterioration occurs.

Keywords

• Bio lubricant
• PE ester
• motor oil
• High temperature high shear viscosity
• kinematic viscosity and viscosity index
• Chemical Engineering