The novel fluorine-containing trisilahydrocarbon lubricants with methyl and 3,3,3-trifluoropropyl substituents (named SiFCH) were synthesized. Importantly, as potential aerospace lubricants, their chemical, physical, and tribological properties under simulated atomic oxygen (AO) exposure in space environment were investigated by a laboratory-built simulation multifunctional space tribo-tester system. The results showed that the SiFCH synthetic oils possess good physical properties and favorable tribological performance, which are superior to that of multi-alkylated cyclopentanes (MACs) in terms of frictional reduction and antiwear capacity under vacuum.
合成了具有甲基和 3,3,3- 三
氟丙基取代基的新型含
氟三
硅氢碳润滑剂(命名为 SiFCH)。重要的是,作为潜在的航空航天润滑剂,它们在太空环境中的模拟原子氧(AO)暴露下的
化学、物理和摩擦学特性通过实验室构建的模拟多功能太空三重测试系统进行了研究。结果表明,SiFCH 合成油具有良好的物理性质和摩擦学性能,在真空条件下的减摩和抗磨能力优于多烷基
环戊烷(MAC)。