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Initial studies on lubricity and surface properties of selected ionic liquids

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EN
Abstrakty
EN
The paper discusses the results of the studies on the surface properties and lubricating abilities of five ionic liquids compared to a high quality gear oil: Mobilube 1SHC 75W90 and two base oils: PAO-6 and SN-650. The investigated ionic liquids were: 1) tetrafluoroborate 1- benzyl-3-methylmidazolium, 2) bis (trifluoromethylsulfonyl) imide 3-methyl-1- propylpyridinium, 3) bis (trifluoromethylsulfonyl) imide 1,2-dimethyl-3-propylimidazolium, 4) bis (trifluoromethylsulfonyl) imide trihexyltetradecylphosphonium), 5) tetrafluoroborate trihexyltetradecylphosphonium. The density, surface tension and wetting angle as well as dynamic and kinematic viscosity were measured. Next, the lubricity properties were evaluated using the four-ball tester. The research results showed the more better lubricity properties of ionic liquids than the base oils. The research results showed the more better lubricity properties of ionic liquids than the base oils. The ionic liquids had the comparable properties to a high quality gear oil. Obtained results of these preliminary studies confirmed a possibility of using selected ionic liquids as new lubricants. These compounds can probably replace the lubricants used so far and find a wide scope of application in lubrication technology in the future. However, particular implementations require further complex studies.
Twórcy
autor
  • Military University of Technology, Faculty of Mechanical Engineering Institute of Motor Vehicles and Transportation Gen. S. Kaliskiego Street 2, 00-908 Warsaw, Poland tel.: +48 22 6837384, kaldonskit@wat.edu.pl
Bibliografia
  • [1] Wasserscheid, P., Welton, T. (Eds), Ionic liquids in Synthesis-Second, completely revised and enlarged edition, Weinheim, Wiley-WCH Verlag GmbH & Co. KGaA, 2008.
  • [2] Liu, W., Wang, H., Lu, Q., Ye, C., Cui, Z., Friction and wear behaviours of ionic liquid of alkylimidazolium hexafluorophophates as lubricants for steel/steel contact, Wear, no. 256, pp. 44-48, 2004.
  • [3] Ye, C., Liu, W., Chen, Y., Yu, L., Room-temperature ionic liquids: a novel versatile lubricant, Chem. Commun., pp. 2244-2245, 2001.
  • [4] Yu, B., Zhou, F., Pang C., Wang B., Liang Y., Liu W., Tribological evaluation of alfa, omega- diimidazoliumalkylene hexafluorophosphate ionic liquid and benzotriazole as additive, Tribology International, no. 41, pp. 797-801, 2008.
  • [5] Earle, M. J., Seddon, K. R., Ionic liquids. Green solvents for the future, Pure Appl. Chem., no. 7, pp.1391-1398 2000.
  • [6] Noruddin, N. S., Wahlbeck, P. G., Carper, W. R., Molecular modelling of ionic liquid tribology: Semi-empirical bonding and molecular structure, Thechem 822, pp. 1-7 2007.
  • [7] Kałdoński, T. J., Kałdoński, T., Lubricity and surface properties of selected imidazolium based ionic liquids, International Conference BALTRIB’2009, Kowno 2009.
  • [8] Qu, J., Truhan, J. J., Dai, S., Luo, H., Blau, P. J., Ionic liquids with ammonium cations as lubricants or additives, Tribology Letters, no. 3, pp. 207-214, 2006.
  • [9] Hagiwara, R., Ito, Y., Room temperature ionic liquids of alkylimidazolium cations and fluoroanions, Journal of Fluorine Chemistry, pp. 221-227, 2000.
  • [10] Liu, W., Lu, Q., Wang, H., Ye, C., Xue, Q., Room temperature ionic liquid 1-ethyl-3- hexylimidazolium-bis(trifluoromethylsulfonyl)-imide as lubricant for steel-steel contact, Tribology International, no. 37, pp. 547-552 2004.
  • [11] KSV Sigma 701, Operation Manual – surface/interfacial tension, DCA. Meter, KSV Instruments Ltd., Helsinki, Finlandia.
  • [12] KSV CAM 100, User’s manual, Contact angle meter, KSV Instruments Ltd., Helsinki, Finland.
  • [13] Polska Norma: PN-76/C-04147, Badanie właściwości smarnych olejów i smarów.
  • [14] Aparat czterokulowy T-02 do tribologicznych badań środków smarowych, http://www.itee.radom.pl/tribologia/pliki/T-02.pdf.
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  • [16] Kałdoński, T. J., Grylewicz, Ł., Stańczyk, M., Kałdoński, T., Badanie właściwości powierzchniowych i smarnosciowych wybranych olejów perfluoropolieterowych Biuletyn WAT, Vol. No. 3/2011.
  • [17] Polska Norma: PN-ISO 2909 Przetwory naftowe. Obliczanie wskaźnika lepkości na podstawie lepkości kinematycznej, sierpień 2009.
  • [18] Kaldonski, T. J., Kaldonski, T., Experimental investigations on relationship between sorptive properties, surface tension, contact angle and lubricity of engine and gear oils, In book “Advanced Tribology” - Proceedings of CIST 2008-ITS-IFToMM 2008. Editors: Jianbin Luo, Yonggang Meng, Tianmin Shao. Springer, Berlin-Heidelberg 2010, ISBN 978-3-642- 03562-1 (Print), 978-3-642-03653-8 (Online) 2010.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ8-0008-0036
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