3_2023_sen_8

Title of the article OPTIMIZATION OF CONCENTRATION OF ANTIOXIDANT ADDITIVE IN PLASTIC LUBRICANT BASED ON RAPESEED OIL
Authors

GRIGORIEV Feodor A., Junior Researcher of the Department “Friction, Lubrication and Operating Resistance of Materials”, V.A. Belyi Metal-Polymer Research Institute of National Academy of Sciences of Belarus, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

PODGORNAYA Viktoriya V., Ph. D. in Phys. and Math., Assoc. Prof., Deputy Director for Science, V.A. Belyi Metal-Polymer Research Institute of National Academy of Sciences of Belarus, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

MARCHANKA Larysa N., Ph. D. in Eng., Assoc. Prof., Head of Fundamental and Applied Mathematics Department, Francisk Skorina Gomel State University, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

KAVALIOVA Inna N., Ph. D. in Eng, Assoc. Prof., Leading Researcher of the Department “Friction, Lubrication and Operating Resistance of Materials”, V.A. Belyi Metal-Polymer Research Institute of National Academy of Sciences of Belarus, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section MATERIALS SCIENCE IN MECHANICAL ENGINEERING
Year 2023
Issue 3(64)
Pages 66–72
Type of article RAR
Index UDK 539.621
DOI https://doi.org/10.46864/1995-0470-2023-3-64-66-72
Abstract Plastic lubricant with rapeseed oil dispersion medium is considered with addition of diphenylamine antioxidant additive. Analysis of tribotechnical, chemical and physicо-mechanical characteristics of the obtained lubricants with content of antioxidant additive from 0.5 to 10.0 wt.% is carried out. The effect of the additive concentration and temperature of introduction on the functional characteristics of lubricants is shown. A comprehensive method is proposed for evaluating the optimal concentration and temperature of the antioxidant additive introduction using an integral indicator, according to the lubricant total functional characteristics. It is noted that for plastic lubricant with a rapeseed oil dispersion medium and a dispersion phase based on a complex calcium thickener, the optimal temperature range for introducing an antioxidant additive is 85–95 °C at the cooling stage, at a concentration of 1.0 wt.%. In this case, the best combination of the finished product functional characteristics is achieved. Based on the proposed methodology and taking into account the experimental data, using expert criteria it is possible to optimize the concentration and temperature of introduction of antioxidant additive diphenylamine, to obtain a plastic lubricant with given characteristics.
Keywords plastic lubricant, calcium complex thickener, rapeseed oil, friction, tribofilm, oxidation, integral indicator, modeling, environmental safety
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