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Extremely High Wear of Steel Surfaces in Polyorganosiloxane Mixtures Containing 10 wt % Hydrocarbon Oils

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Abstract

The effect of 2,2,6,6-tetramethylpiperidine (TMP), para-cumylphenol (PCP), 2,6-di-tert-butyl-4-methylphenol (DTBMP), dicumyl peroxide (DCP), 2,2,6,6-tetramethylpiperidine-1-oxyl (TMPO), dodecantiol (DdSH), dibutyl disulfide (Bu2S2), didodecyl disulfide (Dd2S2), and molecular oxygen on the wear index (Wi) of purified Vaseline oil (PVO), hexadecane (HD), polyethylsiloxane (PES-5), and a mixture of PES-5 containing 10 wt % PVO or HD was studied for the first time. The reason for the extremely high wear of steel surfaces in a solution of PES-5 containing 10 wt % of hydrocarbon lubricants, consists in the antagonism of polyorganosiloxanes with hydrocarbon lubricants and in the lack of molecular oxygen necessary for the formation of a servovite film. The prospect of studying mixtures of polyorganosiloxanes and hydrocarbons is to find a mixture that would have synergism in the anti-wear area. Studies of additives and gaseous media can also be promising. The results of the study of mixtures of polyorganosiloxanes containing about 10% by weight of hydrogen lubricants can be effectively used to reduce the wear of steel surfaces operating in an oxygen atmosphere.

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Authors and Affiliations

  1. Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991, Moscow, Russia

    G. F. Pavelko

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  1. G. F. Pavelko
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Correspondence to G. F. Pavelko.

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Translated by Sh. Galyaltdinov

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Pavelko, G.F. Extremely High Wear of Steel Surfaces in Polyorganosiloxane Mixtures Containing 10 wt % Hydrocarbon Oils. J. Frict. Wear 44, 117–119 (2023). https://doi.org/10.3103/S1068366623020071

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  • DOI: https://doi.org/10.3103/S1068366623020071

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