Study on Viscosity and Acid of Lubricant-Water Contamination using Nano-Graphite Powder and Sunflower Oil as Additives
Keywords:
Lubrication, oxidation reaction, nano-graphite, sunflower oil, viscosity, acid-baseAbstract
This paper studies the viscosities and acid levels of the lubricant-water contamination by using the additives. The increase in both the viscosity and acid in lubricating oil are significant factors contributing to the reduced efficiency of oil. Therefore, maintaining the oil properties has become the main issue and importance. The serious parameter that affects the oil properties is water contamination. Therefore, this article examines the oil properties that are contaminated with 1-5 % water by weight and added 1-5% additives by weight. The additives used include nano graphite powder and sunflower oil. The viscosities of the lubricant samples at different temperatures are measured using a dynamic viscometer. The acid levels are measured using a digital PH test kit, and the microscope enlarges the physical characteristics of the mixtures of the studied lubricants. The results show that adding the nano-graphite powder to a base oil with water contamination can maintain the viscosity and PH level better than the sunflower oil as an additive compared to a base oil without water contamination. Therefore, the use of nano-graphite powders is promising for use as an additive to prevent the effects of water contamination.
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