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- Title
Rheological and Tribological Properties of Lubricating Greases Based on Esters and Polyurea Thickeners.
- Authors
Maksimova, Yu. M.; Shakhmatova, A. S.; Ilyin, S. O.; Pakhmanova, O. A.; Lyadov, A. S.; Antonov, S. V.; Parenago, O. P.
- Abstract
Abstract: Lubricating greases based on pentaerythritol and trimethylolpropane esters and dioctyl sebacate have been synthesized using diureas as a thickener prepared by reactions of toluene diisocyanate, aniline, and primary aliphatic amines of various structures. The physicochemical properties of the greases, such as ultimate strength, yield stress, modulus of elasticity, dropping point, and colloid stability, have been characterized, and data on their antiwear activity have been obtained. The relationship between the structure of grease components, its rheology, and antiwear properties has been revealed.
- Subjects
RHEOLOGY; TRIBOLOGY; ESTERS; YIELD stress; AMINES
- Publication
Petroleum Chemistry, 2018, Vol 58, Issue 12, p1064
- ISSN
0965-5441
- Publication type
Article
- DOI
10.1134/S0965544118120071