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Fullerenes, Nanotubes and Carbon Nanostructures Volume 30, 2022 - Issue 1: Proceedings of the 15th International Conference “Advanced Carbon Nanostructures” (ACNS'2021)
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Proceedings of the 15th International Conference “Advanced Carbon Nanostructures“ (ACNS'2021)

Graphite nanoplates as grease lubricant additive

Artem Rukhova Department “Technology and Methods of Nanoproducts Manufacturing”, Tambov State Technical University, Tambov, RussiaCorrespondence[email protected]
,
Evgeny Bakunina Department “Technology and Methods of Nanoproducts Manufacturing”, Tambov State Technical University, Tambov, Russia
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Tatyana Dyachkovaa Department “Technology and Methods of Nanoproducts Manufacturing”, Tambov State Technical University, Tambov, RussiaORCID Iconhttps://orcid.org/0000-0002-4884-5171
ORCID Icon,
Anton Rukhova Department “Technology and Methods of Nanoproducts Manufacturing”, Tambov State Technical University, Tambov, Russia
,
Andrey Istomina Department “Technology and Methods of Nanoproducts Manufacturing”, Tambov State Technical University, Tambov, Russia
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Elena Obraztsovaa Department “Technology and Methods of Nanoproducts Manufacturing”, Tambov State Technical University, Tambov, Russia
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Alexey Kornevb All-Russian Research Institute for the Use of Machinery and Petroleum Products in Agriculture, Tambov, Russia
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Elena Burakovaa Department “Technology and Methods of Nanoproducts Manufacturing”, Tambov State Technical University, Tambov, RussiaORCID Iconhttps://orcid.org/0000-0001-8927-7433
ORCID Icon,
Antonina Smirnovac Nanomaterials Research Institute, Ivanovo State University, Ivanovo, RussiaORCID Iconhttps://orcid.org/0000-0002-5234-1283
ORCID Icon &
Nadezhda Usol’tsevac Nanomaterials Research Institute, Ivanovo State University, Ivanovo, Russia
 show all
Pages 167-170 | Received 25 Jul 2021, Accepted 02 Aug 2021, Published online: 16 Aug 2021
 
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Abstract

This paper presents the results of a study of the effect of the graphite nanoplates (GNP) concentration on the tribological and rheological characteristics of grease lubricants based on used motor oils and calcium soaps. GNP were obtained by the original electrochemical method. Grease lubricants were tested for residual water content, dropping point, penetration, and wear limit. The size of wear spot was determined using a four-ball friction machine. It was found that by GNP content increasing the water content monotonically rises from 0.6 to 2.3 wt. %. The penetration decreases from 44 to 31 mm with increasing GNP content. Also, the dropping point rises from 79 to 88 °C at the GNP concentration of 150 ppm, and then decreases to 81 °C. The minimal size of wear spot (0.215 mm) is also observed at a GNP concentration equal to 150 ppm. It is 25.1% lower than that of the control sample that does not GNP contain.

Acknowledgement

The work was funded by the by the Russian Foundation for Basic Research (grant no. 18-29-19150_mk).

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