Abstract This paper reports on the use of organic dispersing agents to prevent the agglomeration of tiny CuO nanoparticles in synthetic oil, by developing low concentrations of nanolubricants with good stability. Tiny nanoparticles were added to polyalphaolefin (PAO) oil with the aid of three organic dispersing agents (toluene, hexane and ethylene glycol) at a low concentration of 0.1 wt%. The tribological performance of nanolubricants was evaluated under boundary lubrication conditions. The dispersion results showed more uniform nanoparticle distribution in oil when toluene was used as a dispersing agent. Furthermore, this dispersant provided a substantial decrease in the coefficient of friction and lower wear losses in tribological tests. Good dispersion results in a lower friction coefficient and less wear.

中文翻译：

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使用分散剂提高 Cuo 纳米润滑剂的性能

摘要 本文报道了使用有机分散剂通过开发具有良好稳定性的低浓度纳米润滑剂来防止合成油中微小的 CuO 纳米粒子团聚。在三种有机分散剂（甲苯、己烷和乙二醇）的帮助下，将微小的纳米颗粒以 0.1 wt% 的低浓度添加到聚 α 烯烃 (PAO) 油中。在边界润滑条件下评估纳米润滑剂的摩擦学性能。当使用甲苯作为分散剂时，分散结果表明纳米颗粒在油中的分布更均匀。此外，这种分散剂在摩擦学测试中显着降低了摩擦系数并降低了磨损损失。良好的分散性导致较低的摩擦系数和较少的磨损。