MoS_(2)粉末改性多烷基取代环戊烷润滑脂真空摩擦学性能研究  

Study on Vacuum Tribological Properties of MoS_(2) Powder Modified Multialkylated Cyclopentanes Grease

作　　者：孙高展 张凯锋[1] 苍悦天 周晖[1] 历健 霍丽霞[1] 郝宏[1] 曹珍[1] SUN Gaozhan;ZHANG Kaifeng;CANG Yuetian;ZHOU Hui;LI Jian;HUO Lixia;HAO Hong;CAO Zhen(Key Laboratory of Vacuum Technology and Physics,Lanzhou Institute of Physics,Lanzhou Gansu 730000,China)

机构地区：[1]兰州空间技术物理研究所真空技术与物理国防重点实验室,甘肃兰州730000

出　　处：《润滑与密封》2025年第1期122-128,共7页Lubrication Engineering

摘　　要：为了改善多烷基取代环戊烷(MACs)润滑脂在边界润滑条件下摩擦副的磨损严重现象,制备掺杂不同含量MoS_(2)粉末的MACs润滑脂。采用四球摩擦试验机研究不同含量MoS_(2)粉末下MACs基润滑脂摩擦学性能的影响,采用光学显微镜、表面轮廓仪、扫描电子显微镜(SEM)、能谱仪(EDS)对磨痕表面进行表征,采用红外光谱仪分析摩擦试验后的脂的特征峰和原始特征峰的区别。结果表明:掺杂MoS_(2)粉末的MACs脂在保持较低摩擦因数的基础上,其耐磨性能显著提高,且当MoS_(2)粉末的掺杂比例为1%(质量分数)时,真空四球试验时复合润滑脂在磨损面形成了连续均匀的转移膜,表现出优异的摩擦学特性;摩擦试验后掺杂MoS_(2)粉末的MACs润滑脂的红外图谱的吸收峰均未发生明显的变化,表明掺杂MoS_(2)粉末的MACs润滑脂的基本化学结构具有较好的稳定性。Multialkylated cyclopentanes(MACs) greases doped with different contents of MoS_(2) powders were prepared in order to improve the serious wear of MACs greases during boundary lubrication.The effect of different contents of MoS_(2) powder on tribological properties of MACs based greases was studied by using a four-ball friction tester.The wore surface was characterized by optical microscope,surface profilometer,scanning electron microscope(SEM) and energy dispersive spectrometer(EDS).The difference between the characteristic peak of the grease after friction and the original characteristic peak was analyzed by infrared spectrometer.The results show that the wear resistance of MACs grease doped with MoS_(2) powder is significantly improved while maintaining a low friction coefficient.When the doping ratio is 1%(weight),the composite grease forms a continuous and uniform transfer film on the wear surface during the vacuum four-ball test.The absorption peak of infrared spectrum of MACs grease doped with MoS_(2) powder has not changed obviously after friction test,which shows that the basic chemical structure of MACs grease doped with MoS_(2) powder has good stability.

关 键 词：多烷基取代环戊烷 润滑脂 MoS_(2) 真空摩擦学特性 边界润滑 

分 类 号：H117[语言文字—汉语]