Conductive and Tribological Properties of Lithium-Based Ionic Liquids as Grease Base Oil

被引：25
作者：
Ge, Xiangyu [1 ]
Xia, Yanqiu [1 ,2 ]
Shu, Zongying [1 ]
机构：
[1] North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing, Peoples R China
[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
来源：
TRIBOLOGY TRANSACTIONS | 2015年 / 58卷 / 04期
关键词：
Grease; Ionic Liquid; Tribology; Conductivity; Contact Resistance; Volume Resistivity; WEAR; PERFORMANCE; BEHAVIORS; FRICTION;
D O I：
10.1080/10402004.2015.1012772
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This article reports several conductive greases prepared by ionic liquids (ILs) that are synthesized by mixing lithium tetrafluoroborate (LiBF4) or lithium bis(trifluoromethanesulfonyl) imide (LiNTf2) in diglyme (G2) and tetraglyme (G4) with appropriate weight ratios at room temperature (RT). The ILs have good solution in poly(ethylene glycol-ran-propylene glycol) monobutyl ether (PAG) and thus can be used as a base oil for preparing grease for steel-steel contacts. The electrical conductive properties of the grease prepared with the mixed oil of PAG plus ILs were evaluated using the DDSJ-308A conductivity tester, GEST-121 volume surface resistance tester, and HLY-200A circuit resistance tester. Combining the free volume with viscosity, the conductivity is inversely proportional to viscosity. The tribological properties were investigated using an MFT-R4000 reciprocating friction and wear tester. The results demonstrated that the prepared greases possess better conductive and tribological properties than the commercial grease with Cu powder as an additive.
引用
收藏
页码：686 / 690
页数：5
相关论文
共 19 条
  • [1] [Anonymous], 1978, P 2 INT C SOL EL ST
  • [2] Du H. Y., 2004, THESIS XIAMEN U
  • [3] Dramatically improved friction reduction and wear resistance by in situ formed ionic liquids
    Fan, Mingjin
    Liang, Yongmin
    Zhou, Feng
    Liu, Weimin
    [J]. RSC ADVANCES, 2012, 2 (17) : 6824 - 6830
  • [4] Study of the Conductivity and Tribological Performance of Ionic Liquid and Lithium Greases
    Fan, Xiaoqiang
    Xia, Yanqiu
    Wang, Liping
    Pu, Jibin
    Chen, Tiedan
    Zhang, Haobo
    [J]. TRIBOLOGY LETTERS, 2014, 53 (01) : 281 - 291
  • [5] Gray F., 1999, HDB BATTERY MAT, P499
  • [6] Kajdas C., 1994, LUBR SCI, V6, P203, DOI [DOI 10.1002/LS.3010060302, DOI 10.1002/ls.3010060302]
  • [7] 1-Ethyl-3-methylimidazolium hexafluorophosphate: from ionic liquid prototype to antitype
    McCrary, Parker D.
    Rogers, Robin D.
    [J]. CHEMICAL COMMUNICATIONS, 2013, 49 (54) : 6011 - 6014
  • [8] Tribological Testing and Thermal Analysis of an Alkyl Sulfate Series of Ionic Liquids for Use as Aerospace Lubricants
    Morales, Wilfredo
    Street, Kenneth W.
    Richard, Ryan M.
    Valco, Daniel J.
    [J]. TRIBOLOGY TRANSACTIONS, 2012, 55 (06) : 815 - 821
  • [9] Antiwear Performance and Mechanism of an Oil-Miscible Ionic Liquid as a Lubricant Additive
    Qu, Jun
    Bansal, Dinesh G.
    Yu, Bo
    Howe, Jane Y.
    Luo, Huimin
    Dai, Sheng
    Li, Huaqing
    Blau, Peter J.
    Bunting, Bruce G.
    Mordukhovich, Gregory
    Smolenski, Donald J.
    [J]. ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (02) : 997 - 1002
  • [10] Influence of Cation Structure on Physicochemical and Antiwear Properties of Hydroxyl-Functionalized Imidazolium Bis(trifluoromethylsulfonyl)imide Ionic Liquids
    Song, Yanxin
    Xia, Yanqiu
    Liu, Zhilu
    [J]. TRIBOLOGY TRANSACTIONS, 2012, 55 (06) : 738 - 746
12