摘要
无机纳米粒子润滑油添加剂具有良好的摩擦学性能,近年来得到了广泛重视,但其易团聚及润湿性差,碳与润滑油之间有良好的润湿性,且纳米铜/石墨复合粉体的应用研究少见报道。为此,将纳米铜/石墨复合粉体添加到润滑油中,探讨了其摩擦学性能。结果表明,纳米铜/石墨复合粉体可显著增大润滑油承压能力、降低摩擦系数特别是高荷载下摩擦系数,并可提高其抗磨能力。
Inorganic nanoparticles as the additives of lubricating oils have been attracting increased attention,however,they are usually liable to agglomerate and have poor wettability in the lubricating oils.Thus graphite with good wettability in lubricating oils was used to encapsulate nano-copper particulates.The resulting graphite-encapsulated copper nanoparticles(coded as GECNP)were used as a composite additive in lubricating oil,and the effect of the composite additive on the tribological properties of the lubricating oil was investigated.It was found that GECNP additive contributed to significantly increasing the load-carrying capacity and antiwear ability of the lubricating oil,and considerably improve the friction-reducing ability of the lubricating oil at increased load as well.
出处
《材料保护》
CAS
CSCD
北大核心
2007年第6期11-13,共3页
Materials Protection
基金
湖北省自然科学基金(2004ABA090)
湖北省教育厅优秀中青年项目(2003B001)
关键词
纳米铜
石墨
复合添加剂
摩擦学性能
nano-copper
graphite
composite additive
tribological properties
