Lubricant Additive Containing a Novel Nano Hybrid for improving Lithium Greases Extreme Pressure and Anti Wear Properties

Document Type : Research Article

Authors

1 Catalyst Technology Development Division, Research Institute of Petroleum Industry, Tehran, I.R. IRAN

2 Pars Oil Company, Tehran, I.R. IRAN

Abstract

A novel lubricating grease additive comprised of a new nanohybrid and a suitable base fluid has been proposed in this research. The addition of this nano additive (5 wt%) to the lithium grease improves 1.5 times the extreme pressure property and can reduce lithium grease wear scar diameter better than the other similar nanomaterials reported in the previous research. For preparing the nanohybrid, during the hydrothermal synthesis reaction of nano metal borate, a suitable amount of nano transition metal dichalcogenides was added to the reaction vessel under the nitrogen atmosphere and high temperature for 18h. The base fluid comprises fatty amines, fatty oils, fatty amides, fatty acid esters, and Zinc dialkyl dithiophosphate (ZDDP) with optimum ratios. Nano lubricant additive was prepared by adding the 0.1 wt% nanohybrid to the base fluid at 80 oC with mixing for 30 minutes.

Keywords

Main Subjects

References

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Iranian Journal of Chemistry and Chemical Engineering
Volume 42, Issue 4 - Serial Number 126
April 2023
Pages 1147-1153

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