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本文利用十二烷基硫酸钠/异戊醇/环已烷/水微乳液体系制备了铜纳米粒子,并将其作为添加剂分散在含有聚丁二酰亚胺(T154)、石油磺酸钙(T101)或三烷基氯化铵(Aliquat336)的500SN基础油中,用四球实验机考察了不同分散介质对铜纳米粒子添加剂摩擦学性能的影响,并用X-射线光电子能谱(XPS)分析磨斑表面的组成和价态.实验结果表明:分散介质对铜纳米粒子添加剂的摩擦学性能的影响较大.分散介质对铜纳米粒子添加剂润滑性能影响的优劣顺序为5000SN+T101+Alquat336>500SN+T101+Alquat336≈5000SN+T154+T101>500SN+T154>500SN;在磨斑表面能形成含有铜、氧化亚铜和氧化铜粒子的保护膜,且这些粒子在磨斑表面上可能起到类似“轴承”的作用,从而使铜纳米粒子添加剂表现出较好的摩擦学性能.
In this paper, copper nanoparticles were prepared by sodium dodecyl sulfate / isoamyl alcohol / cyclohexane / water microemulsion system and dispersed as additives in a solution containing polysuccinimide (T154), calcium petroleum sulfonate T101) or trialkylammonium chloride (Aliquat336) 500SN base oil, using a four-ball test machine investigated the impact of different dispersion medium on the tribological properties of copper nanoparticle additives, and X-ray photoelectron spectroscopy (XPS) analysis of grinding The experimental results show that the dispersion medium has a great influence on the tribological properties of Cu nanoparticles, the order of the effect of dispersion medium on the lubricity of Cu nanoparticles is 5000SN + T101 + Alquat336> 500SN + T101 + Alquat336 ≈ 5000SN + T154 + T101> 500SN + T154> 500SN; a protective film containing copper, cuprous oxide and copper oxide particles can be formed on the surface of the wear spot, and these particles may behave like “ Bearing ”effect, so that the copper nanoparticle additives showed good tribological properties.