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Tribological properties of beef tallow as lubricating grease

Juozas Padgurskas (Institute of Power and Transport Machinery Engineering, Aleksandras Stulginskis University, Kauno r., Lithuania)
Raimundas Rukuiža (Institute of Power and Transport Machinery Engineering, Aleksandras Stulginskis University, Kauno r., Lithuania)
Ihor Mandziuk (Department of Chemical Technology, Khmelnytskyi National University, Khmelnytskyi, Ukraine)
Arturas Kupcinskas (Institute of Power and Transport Machinery Engineering, Aleksandras Stulginskis University, Kauno r., Lithuania)
Katerina Prisyazhna (Department of Chemical Technology, Khmelnytskyi National University, Khmelnytskyi, Ukraine)
Andrei Grigoriev (Department of Friction, Lubrication and Operating Proof of Materials, Metal-Polymer Research Institute, Gomel, Belarus)
Inna Kavaliova (Department of Friction, Lubrication and Operating Proof of Materials, Metal-Polymer Research Institute, Gomel, Belarus)
Sergej Revo (Faculty of Physics, Laboratory of Metal Physics and Ceramics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 4 September 2017

173

Abstract

Purpose

The purpose of this paper is to report on the tribological properties of beef tallow grease and improvements therein through modification with special processing, polymeric compounds and additives.

Design/methodology/approach

Pure original beef tallow grease was used as a biological lubricating grease reference material for the tribological research. Beef tallow was modified and synthesized by adding special biological anti-oxidant additives, LZ anti-wear additives, waste polyethylene terephthalate (PET) polymer compounds and thermally processed graphite.

Findings

Rheometric measurements indicate that the beef tallow grease modification technology used in this study enables control of the synthesis process to produce lubricants with the required microstructure. Investigation results of the tribological properties of differently modified greases show that beef tallow synthesized with polymer additives efficiently operates together with anti-wear additives to reduce friction and wear. The grease compound with thermally processed graphite has good tribological properties at 300 N load levels. The critical load level of lubricating greases could be significantly increased through the use of anti-wear additives and thermally processed graphite.

Originality/value

Investigation results of the tribological properties of differently modified beef tallow greases show that beef tallow synthesized with polymer additives efficiently operates together with anti-wear additives to reduce friction and wear. The critical load level of lubricating beef tallow greases could be significantly increased using anti-wear additives and thermally processed graphite.

Keywords

Acknowledgements

This study was funded by the projects of Research Council of Lithuania (TAP LB-08/2015) and the Belarusian Republican Foundation for Fundamental Research (T15LIT-027). The authors thank LUBRIZOL Company for providing the functional additives for the study.

Citation

Padgurskas, J., Rukuiža, R., Mandziuk, I., Kupcinskas, A., Prisyazhna, K., Grigoriev, A., Kavaliova, I. and Revo, S. (2017), "Tribological properties of beef tallow as lubricating grease", Industrial Lubrication and Tribology, Vol. 69 No. 5, pp. 645-654. https://doi.org/10.1108/ILT-01-2016-0014

Publisher

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Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited

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