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首页> 外文会议>The Society of Tribologists and Lubrication Engineers STLE 53rd Annual Meeting May 17-21, 1998 Detroit, Michigan >Elucidation of the Antiwear Performance of Several Organic Phosphates Used with Different Polyol Ester Base Oils from the Aspect of Interaction between Additive and Base Oil~direct C
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Elucidation of the Antiwear Performance of Several Organic Phosphates Used with Different Polyol Ester Base Oils from the Aspect of Interaction between Additive and Base Oil~direct C

机译：从添加剂与基础油〜直接碳的相互作用角度阐明几种与多元醇酯基础油一起使用的有机磷酸盐的抗磨性能

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摘要

The antiwear performance of organic phosphates, such as tricre-sylphosphate (TCP), tributylphosphate (TBP) and disphenylhydrogen-phosphate (DPHP), dissolved in several polyol esters is studied. Several trimethylolpropane esters (TMP) and pentaerythritol esters (PE) having different carbon chains were used as base oils. A fourball tribometer was used to determine the antiwear performance of oils, using commercially available bearing steel balls as test specimens. Although the wear of steel was drastically reduced with low-concentration solutions of these phosphates, the wear increased with increaisng concentration in the higher-concentration region. All of the phosphates showed characteristics of an optimum concentration for minimizing wear. This behavior can be attributed to the effective adsorption/reaction of phosphates in the low concentration region and the reaction forming excess inorganic phosphates on the surface that causes corrosive-like wear in the high-concentration region. Different polyol esters showed differnet optimum concentrations of the additive. The order of optimum concentration among the polyol esters was different with different phosphates. Although the wear rate absolute values at the optimum concentration did not show clear correlation, it is shown that the effect of the concentration of additives on the antiwear performance can be explained by the interaction between additives and base oils using the solubility parameters.
机译：研究了溶解在多种多元醇酯中的有机磷酸酯（如三甲磷酸磷酸酯（TCP），磷酸三丁酯（TBP）和磷酸二苯氢酯（DPHP））的抗磨性能。几种具有不同碳链的三羟甲基丙烷酯（TMP）和季戊四醇酯（PE）被用作基础油。使用市售的轴承钢球作为试样，使用四球摩擦计测定油的抗磨性能。尽管用这些磷酸盐的低浓度溶液可以大大减少钢的磨损，但随着在较高浓度区域中浓度的增加，磨损会增加。所有磷酸盐均显示出最佳浓度的特性，可最大程度地减少磨损。这种行为可归因于磷酸盐在低浓度区域的有效吸附/反应，以及该反应在表面形成过量的无机磷酸盐而导致在高浓度区域产生类似腐蚀的磨损。不同的多元醇酯显示出不同的添加剂最佳浓度。不同的磷酸酯在多元醇酯中的最佳浓度顺序是不同的。尽管最佳浓度下的磨损率绝对值没有显示出明显的相关性，但表明添加剂浓度对抗磨性能的影响可以通过使用溶解度参数通过添加剂与基础油之间的相互作用来解释。

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