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首页> 外文期刊>Journal of nano research >Tribological Properties of Complex Calcium Sulfonate Grease with Ultrafine SiO_2/MoS_2 Powders
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Tribological Properties of Complex Calcium Sulfonate Grease with Ultrafine SiO_2/MoS_2 Powders

机译：超细SiO_2 / MOS_2粉末复合磺酸钙油脂的摩擦性质

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摘要

For the development of complex calcium sulfonate grease containing ultrafine SiO_(2)/MoS_(2)powders with self-reparing performance. On the basis of the dispersion of the nanoSiO_(2)particles, the effects of particle size,addition amount,load and the mass ratio of nanoSiO_(2)to ultrafine MoS_(2)powders on the tribological properties of commercial No.2 complex calcium sulfonate grease were systematically studied by four ball friction and wear tester. The results show that suitable particle size and addition amount of single SiO_(2)and MoS_(2)powders can significantly reduce the coefficient of friction (COF) and the wear scar diameter (WSD) of the grease. The composite of nanoSiO_(2)and MoS_(2)powder can broaden the load range of base grease and further improve the tribological properties of complex calcium sulfonate grease. When the mass ratio of nanoSiO_(2)powder to MoS_(2)powder is 3:7 and the total addition amount is 0.8wt%, the COF and the WSD of the grease are decreased by 53.64% and 27.08%, respectively, compared with the base grease. The two powders in the composite grease have synergy effect for improving the tribological performance and the friction stability of the grease during the process of long friction.
机译：用于开发含有超细SiO_（2）/ MOS_（2）粉末的复合磺酸钙润滑脂，具有自追溯性能。基于纳米粒子颗粒的分散体，粒径，添加量，载荷和质量比的含量对超杂环MOS_（2）粉末进行商业No.2复合物的摩擦性能通过四个球摩擦和磨损测试仪系统地研究了磺酸钙润滑脂。结果表明，单个SiO_（2）和MOS_（2）粉末的合适粒度和添加量可以显着降低摩擦系数（COF）和润滑脂的耐磨疤痕直径（WSD）。纳米氧化物（2）和MOS_（2）粉末的复合材料可以拓宽碱性润滑脂的负载范围，进一步改善复合磺酸钙油脂的摩擦学性质。当纳米氧化物粉末的质量比为3：7并且总添加量为0.8wt％，COF和WSD的润滑脂分别降低53.64％和27.08％，比较用底油脂。复合润滑脂中的两种粉末具有可协同效应，可在长摩擦过程中提高润滑脂的摩擦性能和摩擦稳定性。

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