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Colloidal properties and microstructure of lithium greases
Chemistry and Technology of Fuels and Oils, 19651. For lithium greases (pure lithium stearate — MVP oil, recooked TsIATIM-210 commercial grease, and the previously studied system of lithium stearate — nonpolar vaseline oil), the general nature of the variation in yield value and syneretic properties has been determined in relation to changes in the temperature schedule of cooling from isotropic ...
G. G. Shchegolev +2 more
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Industrial Lubrication and Tribology, 1976
OVER the years lithium soap greases have earned a reputation of providing excellent service under a wide variety of operating conditions. Since their introduction in the early 1950s, lithium soap greases have served the market well, being especially suitable for both automotive and industrial multipurpose applications.
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OVER the years lithium soap greases have earned a reputation of providing excellent service under a wide variety of operating conditions. Since their introduction in the early 1950s, lithium soap greases have served the market well, being especially suitable for both automotive and industrial multipurpose applications.
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Improvement of the Tribological Properties of a Lithium-Based Grease by Addition of Graphene
Journal of Nanoscience and Nanotechnology, 2018Graphene with layer number less than seven, prepared by a mechanical exfoliation method, was used as a friction-reducing additive to a lithium-based grease. The graphene was characterized via AFM, TEM, and Raman spectroscopy. The as-prepared graphene had few defects according to the characterization analysis and appeared to be composed primarily of ...
Aili Wang, Brian J Edwards, Hengbo Yin
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Graphene-Reinforced Lithium Grease for Antifriction and Antiwear
ACS Applied Nano Materials, 2020Graphene has attracted tremendous attention as a promising additive in lubricants due to its unique lamellar structure and excellent mechanical strength.
Bo Lin +4 more
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Influence of alkalinity on effectiveness of additives in lithium greases
Chemistry and Technology of Fuels and Oils, 1987The present work has been aimed at studying the influence of excess alkali (LiOH) on the service properties and effectiveness of the additives* SIM (5% by weight), DF-11 (1% by weight), KINKh-2 (5% by weight), MoS= (5% by weight), and of combinations of these additives, in lithium greases.
Z. K. Chaduneli +3 more
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Antiwear and extreme-pressure properties of lithium greases
Chemistry and Technology of Fuels and Oils, 19751. The antiwear properties of lithium greases without additives line up with those of the dispersion media, in the following order from poorest to best: PES-3 silicone, MS-6 mineral oil, DOS (dioctyl sebacate). 2. The replacement of lithium stearate by lithium soaps of synthetic fatty acids gives lithium greases with poorer antiwear ...
V. V. Vainshtok +5 more
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2020
The ceria (CeO2) nanoparticles were synthesized by chemical processing, due to its better control on particle size and morphology. The characterization techniques named High-Resolution Transmission Electron Microscopy (HR-TEM) and Energy Dispersive Spectroscopy (EDS) were carried out to confirm the formation of ceria nanoparticles. A uniform suspension
Jibin T. Philip +3 more
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The ceria (CeO2) nanoparticles were synthesized by chemical processing, due to its better control on particle size and morphology. The characterization techniques named High-Resolution Transmission Electron Microscopy (HR-TEM) and Energy Dispersive Spectroscopy (EDS) were carried out to confirm the formation of ceria nanoparticles. A uniform suspension
Jibin T. Philip +3 more
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Role of alkali in forming structure of lithium greases
Chemistry and Technology of Fuels and Oils, 1985The present work has been aimed at studying the influence of the high-temperature holding time ("hot-soak" time) and the melt cooling conditions on the individual stages of grease structure formation, depending on the content of alkali. In preparing the greases we used LiSt obtained in grease manufacture by neutralizing the calculated quantities of HSt
Z. K. Chaduneli +3 more
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Evaluation of Calixarenes as Antioxidants in Complex Lithium Grease
Chemistry Letters, 2014Abstract The thermal stability and antioxidant performance of 4-tert-butylcalix[4]arene (B4) and 4-tert-butylcalix[8]arene (B8) were investigated and compared with those of 3,5-di-tert-butyl-4-hydroxytoluene (BHT). Both B4 and B8 were superior to BHT in thermal stability. In addition, B4 and B8 also showed obvious antioxidant capacity in
Mianran Chao, Weimin Li, Xiaobo Wang
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Ageing Evaluation of No.2 Lithium Lubricating Grease
Advanced Materials Research, 2013Contamination, acid number, moisture, thickness and dropping point are summarized as ageing indexes of lubricating grease. Size distribution, composition and weight of contamination which influence lubricating performance most and are used to evaluate performance of lubricating grease broadly in No.2 lithium lubricating grease which is used in main ...
Li Li +5 more
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