Abstract
A comprehensive study of urea greases obtained on the basis of Group I distillate oils, which have a viscosity in the range from 24.4 to 342.0 mm2/s at 40°C, has been carried out. The results obtained have made it possible to reveal the dependence of various physicochemical parameters of greases (dropping point, ultimate strength, colloidal stability, wear rate) on the viscosity of the base oil and the structure of diurea used as a thickener. The revealed relations allow prediction of the properties of greases at the stage of selecting the initial components.
Similar content being viewed by others
REFERENCES
P. M. Lugt, Tribol. Trans. 52, 470 (2009). https://doi.org/10.1080/10402000802687940
S. Rizvi, A Comprehensive Review of Lubricant Chemistry: Technology, Selection, and Design (ASTM, West Conshohocken, PA, 2009). https://doi.org/10.1520/MNL59-EB
A. S. Lyadov, Yu. M. Maksimova, A. S. Shakhmatova, et al., Russ. J. Appl. Chem. 91, 885 (2018). https://doi.org/10.1134/S1070427218060010
E. Casserly, T. Langlais, S. P. Springer, and A. Kumar, Eur. Lubr. Ind. Mag., No. 114, 32 (2018).
O. N. Tsvetkov, Mir Nefteprod., No. 2, 23 (2008).
A. S. Lyadov, Yu. M. Maksimova, O. A. Alekseeva, et al., Russ. J. Appl. Chem. 91, 1733 (2018). https://doi.org/10.1134/S1070427218011014
Funding
The work was carried out within the framework of the state assignment of the Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The authors declare that they have no conflicts of interest requiring disclosure in this article.
Additional information
Translated by S. Zatonsky
Rights and permissions
About this article
Cite this article
Lyadov, A.S., Yarmush, Y.M. & Ivlev, V.A. Physicochemical Properties and Performance Characteristics of Urea Greases Based on Group I Mineral Base Oils. Pet. Chem. 60, 1094–1099 (2020). https://doi.org/10.1134/S0965544120090170
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0965544120090170