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Synergism and Antagonism of Anti-Wear Additives as a Method of Confirming the Mechanism of Their Action

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Abstract—

The effect of 2,2,6,6-tetramethylpiperidine (TMP), 2,6-di-tert-butyl-4-methylphenol (DTBMP), para-cumylphenol (PCP), 2,2,6,6-tetramethylpiperidine-1-oxyl (TMPO), and dicumyl peroxide (DCP) on the anti-wear properties of dodecanethiol (DdSH), didodecyl disulfide (Dd2S2), and dibutyl disulfide (Bu2S2) in a solution of purified Vaseline oil (PVO) has been investigated. The anti-wear properties of 23 two-component compositions of additives from 28 possible combinations were studied. A rule was proposed: synergy is when the effectiveness of a mixture of additives is greater than the average result of the sum of anti-wear efficiencies of each component separately, and antagonism is when the effectiveness of a mixture of additives is less than the average result of the sum of anti-wear efficiencies of each component separately. The practical significance of the proposed method for studying two-component additives is that it can be used to confirm or refute the mechanism of action of additives.

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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. Synergism and Antagonism of Anti-Wear Additives as a Method of Confirming the Mechanism of Their Action. J. Frict. Wear 44, 53–57 (2023). https://doi.org/10.3103/S1068366623010099

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  • DOI: https://doi.org/10.3103/S1068366623010099

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