摘要
以磷酸二异辛酯(EDHPA)作为阴离子,双季磷盐为阳离子合成一种新型的无卤素离子液体并作为PAO 10的润滑添加剂与市售T306做比较。通过SRV-Ⅴ摩擦磨损试验机考察其摩擦学性能,通过扫描电子显微镜对磨损形貌进行表征,通过非接触式三维轮廓仪对磨损体积进行测量,通过ECR对摩擦过程中摩擦膜变化进行分析,通过XPS元素分析对磨斑表面化学元素和变化进行分析。结果表明合成的新型无卤素离子液体作为PAO 10的添加剂时具有优异的摩擦学性能,同时极大程度的提高了PAO 10的极压承载能力。新型离子液体在摩擦过程中发生摩擦化学反应,其中较长的烷基链与极性元素P在摩擦时生成致密且厚的边界润滑膜,提高了PAO 10体系的减摩抗磨性能和极压承载性能。
A new type of halogen-free ionic liquid was synthesized by using diisooctyl phosphate(EDHPA)as anion and diquaternary phosphate as cation.It was compared with commercial T306 as lubricating additive of PAO 10.The tribological properties were investigated by SRV-Ⅴfriction and wear testing machine,the wear morphology was characterized by scanning electron microscope,the wear volume was measured by non-contact three-dimensional profilometer,the changes of friction film during the friction process were analyzed by ECR,and the chemical elements and changes of wear spot surface were analyzed by XPS.Results show that the new synthesized halogen-free ionic liquid has excellent tribological properties as an additive of PAO 10,and greatly improves the extreme pressure carrying capacity of PAO 10.The friction chemical reaction occurs in the friction process of the new ionic liquid,in which the long alkyl chain and polar element P form a dense and thick boundary lubrication film during friction,which improves the friction reducing,anti-wear and extreme pressure bearing properties of PAO 10 system.
作者
范丰奇
张朝阳
周康
黄卿
汤仲平
于强亮
蔡美荣
FAN Fengqi;ZHANG Chaoyang;ZHOU Kang;HUANG Qing;TANG Zhongping;YU Qiangliang;CAI Meirong(PetroChina Lanzhou Lubricating Oil R&D Institute,Lanzhou 730060,China;State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China)
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2020年第6期136-143,共8页
China Surface Engineering
基金
国家自然科学基金(52075524,51705504,21972153)
中国科学院青年创新促进会(2018454)
中国博士后基金面上项目(2019M653798)
甘肃省自然科学基金(20JR10RA048)
关键词
油溶性离子液体
季鏻盐
极压抗磨
边界润滑
oil-soluble ionic liquid
quaternary phosphate
extreme pressure anti-wear
boundary lubrication
