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MoDTC friction modifier additive degradation: Correlation between tribological performance and chemical changes

机译:MODTC摩擦改性剂添加剂降解:摩擦学性能与化学变化之间的相关性

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摘要

Due to the complexity of the processes, the degradation mechanisms of molybdenum dithiocarbamate (MoDTC)-containing oil are still not fully understood. In order to get a better understanding of how a MoDTC additive works at the molecular level, correlation between its chemical behaviour in a bulk oil during thermo-oxidative degradation and its ability to reduce friction has been investigated. The combination of High-Performance Liquid Chromatography (HPLC), Fourier Transform Infrared Spectroscopy (FT-IR) and Mass Spectroscopy (MS) techniques has provided much detailed information about the complex chemistry involved in the degradation process. Finally, the relationship between MoDTC additive depletion and its effectiveness in decreasing friction has been studied and a hypothesis on the chemical pathway followed by MoDTC during a thermo-oxidative degradation process has been proposed.
机译:由于该方法的复杂性,钼二硫代氨基甲酸酯(MODTC)含油的降解机制仍然不完全理解。 为了更好地了解Modtc添加剂如何在分子水平下工作,研究了在热氧化降解期间散装油中的化学行为与其减少摩擦能力之间的相关性。 高效液相色谱(HPLC),傅里叶变换红外光谱(FT-IR)和质谱(MS)技术的组合提供了有关降解过程中涉及的复杂化学的详细信息。 最后,研究了MODTC添加剂耗竭与其在减少摩擦中的有效性的关系,并提出了在热氧化降解过程中的MODTC的化学途径上的假设。

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  • 来源
    《RSC Advances》 |2015年第114期|共11页
  • 作者单位

    University of Lyon Laboratory of Tribology and System Dynamics CNRS UMR5513 Ecole Centrale de Lyon 69134 Ecully France.;

    University of Lyon Laboratory of Tribology and System Dynamics CNRS UMR5513 Ecole Centrale de Lyon 69134 Ecully France.;

    University of Lyon Laboratory of Tribology and System Dynamics CNRS UMR5513 Ecole Centrale de Lyon 69134 Ecully France.;

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  • 正文语种 eng
  • 中图分类 化学;
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