摘要
合成了三种含有六氟乙酰丙酮阴离子和不同烷基链长咪唑阳离子的室温离子液体([Cnmim][hfac];n=4,6,8)润滑剂,以1-丁基-3-甲基咪唑双三氟甲烷磺酰基亚胺盐(L-F104)为参照样,研究了它们作为不同金属摩擦副润滑剂的摩擦学性能和理化性质,并探索了其结构中阳离子烷基链长的影响规律.结果表明:[Cnmim][hfac]离子液体对金属基底材料腐蚀较轻,常温下作为钢/铜和钢/铝摩擦副的润滑剂均具有良好的润滑性能,并且随着其结构中阳离子烷基链的增长,热稳定性和黏度呈递增趋势,减摩抗磨作用也更加优异.
Three kinds of room temperature ionic liquid([Cnmim][hfac],n=4,6,8)lubricants containing hexafluoroacetylacetone anion and imidazole cations were synthesized.Taking 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide(L-F104)as a control sample,the lubricating and physicochemical properties of the ionic liquid as lubricants for different friction pairs were studied,and the influence of the length of cationic alkyl chain on their properties was explored.The results show that the ionic liquids were less corrosive to the metal substrates.At room temperature,they had good lubrication performance on steel/copper and steel/aluminium friction pairs.With the increase of cationic alkyl chains,their thermal stability and viscosity increased,and their friction reducing and anti-wear properties were also improved.
作者
杨得锁
李文倩
马琳
韩云燕
王冬梅
凡明锦
YANG Desuo;LI Wenqian;MA lin;HAN Yunyan;WANG Dongmei;FAN Mingjin(Shaanxi Key Laboratory of Phytochemistry,College of Chemistry&Chemical Engineering,Baoji University of Arts and Sciences,Shaanxi Baoji 721013,China)
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2019年第6期746-755,共10页
Tribology
基金
国家自然科学基金面上项目(51675006)
固体润滑国家重点实验室开放课题项目(LSL-1812)资助~~
关键词
六氟乙酰丙酮
离子液体
润滑剂
腐蚀性
摩擦学性能
hexafluoroacetylacetone
ionic liquids
lubricants
corrosivity
tribological properties
