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Composite tribological materials based on molybdenum disulfide nanoparticles and polytetrafluoroethylene microgranules

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Abstract

Tribological materials based on molybdenum disulfide nanoparticles localized on the surface of ultradispersed polytetrafluoroethylene were prepared. The composition and properties of the new composite materials were studied. Introduction of ultradispersed additives based on polytetrafluoroethylene with MoS2 and on polytetrafluoroethylene and nanodiamonds prepared by detonation synthesis (taken as reference samples) decreases the viscosity of MS-20 aviation oil. The dependence of the friction coefficient on the Sommerfeld number for the composites obtained was examined. Introduction of additives leads to a decrease in the friction coefficient with increasing linear sliding velocity, in contrast to the initial oil for which the trend is opposite. The dependence of the friction coefficient on the concentration of additives in the initial oil was demonstrated. Modification of polytetrafluoroethylene microgranules with 3 wt % MoS2 nanoparticles allows the amount of additive to the oil to be considerably reduced.

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Authors and Affiliations

  1. All-Russian Scientific Research Institute of Aviation Materials, ul. Radio 17, Moscow, 105005, Russia

    K. A. Shashkeev, O. V. Popkov & S. V. Kondrashov

  2. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskii pr. 149, Moscow, 119991, Russia

    G. Yu. Yurkov, A. A. Ashmarin & M. I. Biryukova

  3. Foundation for Perspective Research, Universitetskii pr. 12, Moscow, 119330, Russia

    G. Yu. Yurkov

Authors
  1. K. A. Shashkeev
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  2. O. V. Popkov
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  3. G. Yu. Yurkov
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  4. S. V. Kondrashov
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  5. A. A. Ashmarin
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  6. M. I. Biryukova
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Corresponding author

Correspondence to K. A. Shashkeev.

Additional information

Original Russian Text © K.A. Shashkeev, O.V. Popkov, G.Yu. Yurkov, S.V. Kondrashov, A.A. Ashmarin, M.I. Biryukova, 2016, published in Zhurnal Prikladnoi Khimii, 2016, Vol. 89, No. 4, pp. 532−538.

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Shashkeev, K.A., Popkov, O.V., Yurkov, G.Y. et al. Composite tribological materials based on molybdenum disulfide nanoparticles and polytetrafluoroethylene microgranules. Russ J Appl Chem 89, 644–649 (2016). https://doi.org/10.1134/S1070427216040194

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  • DOI: https://doi.org/10.1134/S1070427216040194

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