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Tuning the surface chemistry of lubricant-derived phosphate thermal films: The effect of boron

机译:调整润滑剂衍生的磷酸盐热敏膜的表面化学:硼的作用

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摘要

Understanding the interactions among the various additives in a lubricant is important because they can have a major influence on the performance of blends under tribological conditions. The present investigation is focused on the interactions occurring between ZnDTP and dispersant molecules in an oil formulation, and on their reactivity under purely thermal conditions in the presence of air-oxidized iron surfaces. Nuclear magnetic resonance spectroscopy (NMR) was performed on undiluted blends at different temperatures, while angle-resolved X-ray photoelectron spectroscopy (ARXPS) was exploited to investigate the surface reactivity on oxidized iron surfaces. The results indicate that the dispersant, generally added to blends for preventing the deposition of sludge, varnish and soot on the surface, might also inhibit the reaction of all other additives with the steel surface. (C) 2016 Elsevier B.V. All rights reserved.
机译:了解润滑剂中各种添加剂之间的相互作用非常重要,因为它们会对摩擦条件下的共混物性能产生重大影响。本研究的重点是在油配方中ZnDTP和分散剂分子之间发生的相互作用,以及在存在空气氧化铁表面的纯热条件下的反应性。核磁共振波谱法(NMR)在不同温度下对未稀释的混合物进行,而角分辨X射线光电子能谱仪(ARXPS)用于研究氧化铁表面的表面反应性。结果表明,通常将其添加到混合物中以防止污泥,清漆和烟灰在表面上的沉积,也可能会抑制所有其他添加剂与钢表面的反应。 (C)2016 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Applied Surface Science》 |2017年第2期|1251-1263|共13页
  • 作者单位

    ETH, Dept Mat, Lab Surface Sci & Technol, Vladimir Prelog Weg 5, CH-8093 Zurich, Switzerland;

    ETH, Dept Mat, Lab Surface Sci & Technol, Vladimir Prelog Weg 5, CH-8093 Zurich, Switzerland|Cittadella Univ Monserrato, Dipartimettto Sci Chim & Geol, Univ Cagliari, I-09100 Cagliari, Italy;

    Infineum UK Ltd, Enabling Res, Milton Hill, Steventon OX13 6BD, Oxon, England;

    Infineum UK Ltd, Enabling Res, Milton Hill, Steventon OX13 6BD, Oxon, England;

    ETH, Dept Mat, Lab Surface Sci & Technol, Vladimir Prelog Weg 5, CH-8093 Zurich, Switzerland;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Thermal film; ZnDTP; Borated dispersant; NMR; Angle-resolved XPS; Layer thickness;

    机译:热敏膜ZnDTP硼酸化分散剂NMR角分辨XPS层厚;

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