The Effects of Natural Antioxidant on the Efficiency of Lubricant Oil |
| T. Talib Issa Al-Omran
University of Baghdad, College of Science, Physics Department, Jadiriya, Baghdad, Iraq |
| Full Text PDF |
| Specimens from industrial lubricant oils of two types were investigated. The first type was used for internal combustion engines and the second was used for electrical distribution transformers. The flash point, pour point, viscosity, and brake down voltage tests are done under 100° for 48 h and after this there is added the natural antioxidant curcumin in a powder form having 75 μm grain size. Curcumin of different weight percentage ranging from 1 to 5 was well mixed with the lubricant oil. The well dissolved specimens were investigated according to the ASTM methods. The significant improvement in all the properties was achieved after adding the natural antioxidant (curcumin) and reached its maximum value at the combination oil-curcumin 3 wt%. The well dissolved mixture indicates the reason of the improvement in the two types of oil efficiency and can stand with over temperature. |
DOI:10.12693/APhysPolA.134.426 topics: efficiency, lubricant, oil, antioxidant |