Abstract
Three phosphonate ionic liquids (1-butyl-3-methylimidazolium O-butyl phosphonate, N,N-dibutylammonium O-butyl phosphonate and N,N-dibutylammonium O-ethyl phosphonate) are used as additives in PEG for steel/steel contact. Moreover, the tribological performances and lubrication mechanism were studied. Results show that these ionic liquids can improve the tribological performances of the base oil significantly. The main factor that influences the tribological performances of the phosphonate ionic liquids/PEG blends is the competitive adsorption between the base oils and the additives. In addition, chemical reactions between the ionic liquids and the metal substrate are responsible for the excellent tribological performances of the phosphonate ionic liquids/PEG blends.
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Ye, C.F., Liu, W.M., Chen, Y.X., Yu, L.G.: Room-temperature ionic liquids: a novel versatile lubricant. Chem. Commun. 2244–2245 (2001)
Zhou, F., Liang, Y.M., Liu, W.M.: Ionic liquid lubricants: designed chemistry for engineering applications. Chem. Soc. Rev. 38, 2590–2599 (2009)
Somers, A.E., Howlett, P.C., MacFarlane, D.R., Forsyth, M.: A review of ionic liquid lubricants. Lubricants 1, 3–21 (2013)
Bermúdez, M.D., Jiménez, A.E., Sanes, J., Carrión, F.J.: Ionic liquids as advanced lubricant fluids. Molecules 14, 2888–2908 (2009)
Torimoto, T., Tsuda, T., Okazaki, K., Kuwabata, S.: New frontiers in materials science opened by ionic liquids. Adv. Mater. 22, 1196–1221 (2010)
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)
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)
Liu, X.Q., Zhou, F., Liang, Y.M., Liu, W.M.: Tribological performance of phosphonium based ionic liquids for an aluminum-on-steel system and opinions on lubrication mechanism. Wear 261, 1174–1179 (2006)
Qu, J., Truhan, J.J., Dai, S., Luo, H., Blau, P.J.: Ionic liquids with ammonium cations as lubricants or additives. Tribol. Lett. 22, 207–214 (2006)
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)
Cai, M.R., Liang, Y.M., Yao, M.H., Xia, Y.Q., Zhou, F., Liu, W.M.: Imidazolium ionic liquids as antiwear and antioxidant additive in poly (ethylene glycol) for steel/steel contacts. ACS Appl. Mater. Interfaces 2, 870–876 (2010)
Qu, J., Blau, P.J., Dai, S., Luo, H.M., Meyer, H.M.: Ionic liquids as novel lubricants and additives for diesel engine applications. Tribol. Lett. 35, 181–189 (2009)
Qiao, D., Wang, H.Z., Feng, D.P.: Tribological performance and mechanism of phosphate ionic liquids as additives in three base oils for steel-on-aluminum contact. Tribol. Lett. 55, 517–531 (2014)
Qu, J., Luo, H.M., Chi, M.F., Ma, C., Blau, P.J., Dai, S., et al.: Comparison of an oil-miscible ionic liquid and ZDDP as a lubricant anti-wear additive. Tribol. Int. 71, 88–97 (2014)
Barnhill, W.C., Qu, J., Luo, H., Meyer, H.M., Ma, C., Chi, M., et al.: Phosphonium-organophosphate ionic liquids as lubricant additives: effects of cation structure on physicochemical and tribological characteristics. ACS Appl. Mater. Interfaces 6, 22585–22593 (2014)
Jiménez, A.E., Bermúdez, M.D.: Imidazolium ionic liquids as additives of the synthetic ester propylene glycol dioleate in aluminium-steel lubrication. Wear 265, 787–798 (2008)
Somers, A.E., Khemchandani, B., Howlett, P.C., Sun, J.Z., MacFarlane, D.R., Forsyth, M.: Ionic liquids as antiwear additives in base oils: influence of structure on miscibility and antiwear performance for steel on aluminum. ACS Appl. Mater. Interfaces 5, 11544–11553 (2013)
Swatloski, R.P., Holbrey, J.D., Rogers, R.D.: Ionic liquids are not always green: hydrolysis of 1-butyl-3-methylimidazolium hexafluorophosphate. Green Chem. 5, 361–363 (2003)
Uerdingen, M., Treber, C., Balser, M., Schmitt, G., Werner, C.: Corrosion behaviour of ionic liquids. Green Chem. 7, 321–325 (2005)
Jiménez, A.E., Bermúdez, M.D.: Ionic liquids as lubricants for steel-aluminum contacts at low and elevated temperatures. Tribol. Lett. 26, 53–60 (2007)
Qiao, D., Wang, H.Z., Feng, D.P.: Tribological performance of phosphate ionic liquids as lubricants for steel-on-aluminum contact. Proc. Inst. Mech. Eng. Part J J. Eng. Tribol. 227, 1261–1271 (2013)
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)
Yu, B., Bansal, D.G., Qu, J., Sun, X.Q., Luo, H.M., Dai, S., et al.: Oil-miscible and non-corrosive phosphonium-based ionic liquids as candidate lubricant additives. Wear 289, 58–64 (2012)
Espinosa, T., Sanes, J., Jiménez, A.E., Bermúdez, M.D.: Protic ammonium carboxylate ionic liquid lubricants of OFHC copper. Wear 303, 495–509 (2013)
Cai, M.R., Liang, Y.M., Zhou, F., Liu, W.M.: Tribological properties of novel imidazolium ionic liquids bearing benzotriazole group as the antiwear/anticorrosion additive in poly(ethylene glycol) and polyurea grease for steel/steel contacts. ACS Appl. Mater. Interfaces 3, 4580–4592 (2011)
Cai, M.R., Liang, Y.M., Zhou, F., Liu, W.M.: Anticorrosion imidazolium ionic liquids as the additive in poly(ethylene glycol) for steel/Cu-Sn alloy contacts. Faraday Discuss. 156, 147–157 (2012)
Yi, Z.G.: Organic phosphorus compounds. Chemical Industry Press, Beijing (2011)
Han, Y.Y., Qiao, D., Zhang, L., Feng, D.P.: Study of tribological performance and mechanism of phosphonate ionic liquids for steel/aluminum contact. Tribol. Int. 84, 71–80 (2015)
Cheng, M.J., Song, M.M., Dong, H.Y., Shi, F.: Surface adhesive forces: a metric describing the drag-reducing effects of superhydrophobic coatings. Small 11, 1665–1671 (2015)
Mitsuya, Y., Ohshima, Y.: Measurement of velocity-dependent adhesive force exerted on magnetic disk using micro-probe of SPM. J. Tribol. Trans. ASME 125, 842–849 (2003)
Kanda, Y., Iwasaki, S., Higashitani, K.: Adhesive force between hydrophilic surfaces in alcohol–water solutions. J. Colloid Interface Sci. 216, 394–400 (1999)
Naumkin, A.V., Kraut-Vass, A., Gaarenstroom, S.W., Powell, C.J. NIST X-ray photoelectron spectroscopy (XPS) database. http://srdata.nist.gov/xps/. Accessed 28 July 2016
Espinosa, T., Jiménez, M., Sanes, J., Jiménez, A.E., Iglesias, M., Bermúnez, M.D.: Ultra-low friction with a protic ionic liquid boundary film at the water-lubricated sapphire-stainless steel interface. Tribol. Lett. 53, 1–9 (2014)
Lu, Q.M., Wang, H.Z., Ye, C.F., Liu, W.M., Xue, Q.J.: Room temperature ionic liquid 1-ethyl-3-hexylimidazolium-bis(trifluoromethylsulfonyl)-imide as lubricant for steel–steel contact. Tribol. Int. 37, 547–552 (2004)
Weng, L.J., Liu, X.Q., Liang, Y.M., Xue, Q.J.: Effect of tetraalkylphosphonium based ionic liquids as lubricants on the tribological performance of a steel-on-steel system. Tribol. Lett. 26, 11–17 (2007)
Otero, I., López, E.R., Reichelt, M., Fernández, J.: Tribo-chemical reactions of anion in pyrrolidinium salts for steel-steel contact. Tribol. Int. 77, 160–170 (2014)
Qiao, D., Wang, H.Z., Feng, D.P.: Benzimidazolyl phosphates as anti-wear additives in poly(ethylene glycol) for steel/steel contacts. Lubr. Sci. 26, 1–11 (2014)
Cai, M.R., Liang, Y.M., Zhou, F., Liu, W.M.: A novel imidazolium salt with antioxidation and anticorrosion dual functionalities as the additive in poly(ethylene glycol) for steel/steel contacts. Wear 306, 197–208 (2013)
Jiang, D., Hu, L.T., Feng, D.P.: Crown-type ionic liquids as lubricants for steel-on-steel system. Tribol. Lett. 41, 417–424 (2011)
Viesca, J.L., García, A., Battez, A.H., González, R., Monge, R., Fernández-González, A., et al.: FAP(-) anion ionic liquids used in the lubrication of a steel-steel contact. Tribol. Lett. 52, 431–437 (2013)
Jiménez, A.E., Bermúdez, M.D., Carrión, F.J., Martínez-Nicolás, G.: Room temperature ionic liquids as lubricant additives in steel-aluminium contacts: influence of sliding velocity, normal load and temperature. Wear 261, 347–359 (2006)
Jiménez, A.E., Bermúdez, M.D.: Ionic liquids as lubricants of titanium–steel contact. Part 3. ti6Al4V lubricated with imidazolium ionic liquids with different alkyl chain lengths. Tribol. Lett. 40, 237–246 (2010)
Kajdas, C.: Importance of anionic reactive intermediates for lubricant component reactions with friction surfaces. Lubr. Sci. 6, 203–228 (1994)
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The authors are grateful for the financial support from the National Natural Science Foundation of China (51175492, 51405477).
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Han, Y., Qiao, D., Guo, Y. et al. Influence of Competitive Adsorption on Lubricating Property of Phosphonate Ionic Liquid Additives in PEG. Tribol Lett 64, 22 (2016). https://doi.org/10.1007/s11249-016-0749-9
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DOI: https://doi.org/10.1007/s11249-016-0749-9