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Lithium-Based Ionic Liquids: In Situ-Formed Lubricant Additive Only by Blending

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Abstract

This article reports a novel way of in situ formation of ionic liquids (ILs) that are used as lubricant additives for steel/steel contacts. The ILs can be generated simply in base oils by mixing small molecules of 2-oxazolidinone, triglyme, or tetraglyme with lithium bis(trifluoromethane sulfonyl) imide in appropriate molar ratios at room temperature. The said ILs can be formed in polyether, polyester, and polyurea grease and show better solubility in these base oils than commonly used ILs such as 1-methyl-3-hexylimidazolium hexafluorophosphate (L-P106). They can significantly improve the friction-reducing and antiwear properties of the base oils.

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References

  1. Laszlo, J.A., Compton, D.L.: α-Chymotrypsin catalysis in imidazolium-based ionic liquids. Biotechnol. Bioeng. 75, 181–186 (2001)

    Article  CAS  Google Scholar 

  2. Bose, S., Wijeratne, A.B., Thite, A., Kraus, G.A., Armstrong, D.W., Petrich, J.W.: Influence of chiral ionic liquids on stereoselective fluorescence quenching by photoinduced electron transfer in a naproxen dyad. J. Phys. Chem. B 113, 10825–10829 (2009)

    Article  CAS  Google Scholar 

  3. Earle, M.J., Seddon, K.R.: Ionic liquid: green solvents for the future. Pure Appl. Chem. 72, 1391–1398 (2000)

    Article  CAS  Google Scholar 

  4. Welton, T.: Room-temperature ionic liquids: solvents for synthesis and catalysis. Chem. Rev. 99, 2071–2083 (1999)

    Article  CAS  Google Scholar 

  5. Hagiwara, R., Ito, Y.: Room temperature ionic liquids of alkylimidazolium cations and fluoroanions. J. Fluorine Chem. 105, 221–227 (2000)

    Article  CAS  Google Scholar 

  6. Seddon, K.R.: Ionic liquids for clean technology. J. Chem. Tech. Biotechnol. 68, 351–356 (1997)

    Article  CAS  Google Scholar 

  7. Zhao, H.: Innovative applications of ionic liquids as ‘‘green” engineering liquids. Chem. Eng. Commun. 193, 1660–1677 (2006)

    Article  CAS  Google Scholar 

  8. Qu, J., Blau, P.J., Dai, S., Luo, H., Meyer, H.M., Truhan, J.J.: Tribological characteristics of aluminum alloys sliding against steel lubricated by ammonium and imidazolium ionic liquids. Wear 267, 1226–1231 (2009)

    Article  CAS  Google Scholar 

  9. Ye, C.F., Liu, W.M., Chen, Y.X.G., Yu, L.: Room-temperature ionic liquids: a novel versatile lubricant. Chem. Commun. 21, 2244–2245 (2001)

    Article  Google Scholar 

  10. Liu, W., Ye, C., Chen, Y., Ou, Z., Sun, D.C.: Tribological behavior of sialon ceramics sliding against steel lubricated by fluorine-containing oils. Tribol. Int. 35, 503–509 (2002)

    Article  CAS  Google Scholar 

  11. Mu, Z.G., Zhou, F., Zhang, S.X., Liang, Y.M., Liu, W.M.: Effect of the functional groups in ionic liquid molecules on the friction and wear behavior of aluminum alloy in lubricated aluminum-on-steel contact. Tribol. Int. 38, 725–731 (2005)

    Article  CAS  Google Scholar 

  12. Jiménez, A.E., Bermúdez, M.D., Iglesias, P., Carrión, F.J., Martínez-Nicolás, G.: 1-N-Alkyl-3-methylimidazolium ionic liquids as neat lubricants and lubricant additives in steel–aluminium contacts. Wear 260, 766–782 (2006)

    Article  Google Scholar 

  13. Phillips, B.S., Zabinski, J.S.: Ionic liquid lubrication effects on ceramics in a water environment. Tribol. Lett. 17, 533–541 (2004)

    Article  CAS  Google Scholar 

  14. Liu, W.M., Ye, C.F., Gong, Q.Y., Wang, H.Z., Wang, P.: Tribological performance of room-temperature ionic liquids as lubricant. Tribol. Lett. 13, 81–85 (2002)

    Article  CAS  Google Scholar 

  15. Zhang, C., Malhotra, S.V., Francis, A.J.: Toxicity of imidazolium- and pyridinium-based ionic liquids and the co-metabolic degradation of N-ethylpyridinium tetrafluoroborate. Chemosphere 82, 1690–1695 (2011)

    Article  CAS  Google Scholar 

  16. Fernandes, A.M., Rocha, M.A.A., Freire, M.G., Marrucho, I.M., Coutinho, J.A.P., Santos, L.M.N.B.: F.: evaluation of cation-anion interaction strength in ionic liquids. J. Phys. Chem. B 115, 4033–4041 (2011)

    Article  CAS  Google Scholar 

  17. Yu, F.L., Zhang, R.L., Xie, C.X., Yu, S.T.: Synthesis of thermoregulated phase-separable triazolium ionic liquids catalysts and application for Stetter reaction. Tetrahedron 66, 9145–9150 (2010)

    Article  CAS  Google Scholar 

  18. Jiménez, A.E., Bermúdez, M.D.: Imidazoliumionic liquids as additives of the synthetic ester propylene glycol dioleate in aluminium–steel lubrication. Wear 265, 787–798 (2008)

    Article  Google Scholar 

  19. Hu, Y.S., Li, H., Huang, X.J., Chen, L.Q.: Novel room temperature molten salt electrolyte based on LiTFSI and acetamide for lithium batteries. Electrochem. Commun. 6, 28–32 (2004)

    Article  CAS  Google Scholar 

  20. Gorecki, W., Roux, C., Clémancey, M., Armand, M., Belorizky, E.: NMR and conductivity study of polymer electrolytes in the imide family: P(EO)/Li[N(SO2CnF2n+1)(SO2CmF2m+1)]. ChemPhysChem 3, 620–625 (2002)

    Article  CAS  Google Scholar 

  21. Aihara, Y., Kuratomi, J., Bando, T., Iguchi, T., Yoshida, H., Ono, T., Kuwana, K.: Investigation on solvent-free solid polymer electrolytes for advanced lithium batteries and their performance. J. Power Source 114, 96–104 (2003)

    Article  CAS  Google Scholar 

  22. Chen, R.J., Wu, F., Li, L., Qiu, X.P., Chen, L.Q., Chen, S.: The structure–activity relationship studies of binary room temperature complex electrolytes based on LiTFSI and organic compounds with acylamino group. Vib. Spectrosc. 44, 297–307 (2007)

    Article  CAS  Google Scholar 

  23. Henderson, W.A.: Glyme–lithium salt phase behavior. J. Phys. Chem. B 110, 13177–13183 (2006)

    Article  CAS  Google Scholar 

  24. Chen, R.J., Wu, F., Li, L., Xu, B., Qiu, X.P., Chen, S.: Novel binary room-temperature complex system based on LiTFSI and 2-oxazolidinone and its characterization as electrolyte. J. Phys. Chem. C 111, 5184–5194 (2007)

    Article  CAS  Google Scholar 

  25. Tamura, T., Yoshida, K., Hachida, T., Tsuchiya, M., Nakamura, M., Kazue, Y., Tachikawa, N., Dokko, K., Watanabe, M.: Physicochemical properties of glyme–Li salt complexes as a new family of room-temperature ionic liquids. Chem. Lett. 39, 753–755 (2010)

    Article  CAS  Google Scholar 

  26. Yoshida, K., Nakamura, M., Kazue, Y., Tachikawa, N., Tsuzuki, S., Seki, S., Dokko, K., Watanabe, M.: Oxidative-stability enhancement and charge transport mechanism in glyme–lithium salt equimolar complexes. J. Am. Chem. Soc. 133, 13121–13129 (2011)

    Article  CAS  Google Scholar 

  27. Borisenko, L.I., Ishchuk, YuL: Properties of polyurea greases on a synthetic base. Chem. Technol. Fuels Oils 40, 415–417 (2004)

    Article  CAS  Google Scholar 

  28. NIST Standard Reference Database 20, Version 3.5. http://srdata.nist.gov/xps/. Accessed 16 July 2012

  29. Wang, H.Z., Lu, Q.M., Ye, C.F., Liu, W.M., Cui, Z.J.: Friction and wear behaviors of ionic liquid of alkylimidazolium hexafluorophosphates as lubricants for steel/steel contact. Wear 256, 44–48 (2004)

    Article  CAS  Google Scholar 

  30. Hernández Battez, A., González, R., Viesca, J.L., Blanco, D., Asedegbega, E., Osorio, A.: Tribological behaviour of two imidazolium ionic liquids as lubricant additives for steel/steel contacts. Wear 266, 1224–1228 (2009)

    Article  Google Scholar 

  31. Minami, I.: Ionic liquids in tribology. Molecules 14, 2286–2305 (2009)

    Article  CAS  Google Scholar 

  32. Suzuki, A., Shinka, Y., Masuko, M.: Tribological characteristics of imidazolium-based room temperature ionic liquids under high vacuum. Tribol. Lett. 27, 307–313 (2007)

    Article  CAS  Google Scholar 

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Acknowledgments

The authors acknowledge the support for this study from the NSFC (Nos. 51105353, 51105354, and 21173243) and from the ‘Hundreds Talents’ Program of the CAS.

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Correspondence to Feng Zhou.

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Song, Z., Fan, M., Liang, Y. et al. Lithium-Based Ionic Liquids: In Situ-Formed Lubricant Additive Only by Blending. Tribol Lett 49, 127–133 (2013). https://doi.org/10.1007/s11249-012-0046-1

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  • DOI: https://doi.org/10.1007/s11249-012-0046-1

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