Skip to main content
Log in

Protic Ionic Liquids with Ammonium Salts as Lubricants for Magnetic Thin Film Media

  • Original Paper
  • Published:
Tribology Letters Aims and scope Submit manuscript

Abstract

The newly synthesized perfluoropolyether (PFPE) whose terminal group is an ammonium salt with a carboxylic acid has better frictional and anti-corrosion properties when compared to the conventional PFPEs. The friction is almost independent of the PFPE structure, but depends on the amine structures. This modified PFPE uniformly covers the magnetic surfaces; this is why it not only reduces the friction, but also has an effect on the corrosion resistance.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

  1. Fukuda, S., Ozue, T., Onodera, S.: Recording over 15 ktpi using multichannel heads in a tape system. IEEE. Trans. Magn. 42, 182–187 (2006). doi:10.1109/TMAG.2005.861762

    Article  Google Scholar 

  2. Sekiguchi, N., Kawakami, K., Ozue, T., Yamaga, M., Onodera, S.: Examination of newly developed metal particle media for >3 gb/in/sup 2/recording in GMR-based tape systems. IEEE Trans. Magn. 41, 3235–3237 (2005). doi:10.1109/TMAG.2005.855246

    Article  CAS  Google Scholar 

  3. Noma, K., Matsuoka, M., Kanai, H., Uehara, Y., Nomura, K., Awaji, N.: Ultra-high magnetic moment films for write head. IEEE Trans. Magn. 42, 140–142 (2006)

    Article  Google Scholar 

  4. Bhushan, B.: Tribology and mechanics of magnetic storage devices, 2nd edn. Springer-Verlag, New York (1996)

    Google Scholar 

  5. Homola, A.M.: Lubrication issues in magnetic disk storage devices. IEEE Trans. Magn. 32, 1812–1818 (1996). doi:10.1109/20.492870

    Article  Google Scholar 

  6. Lin, J., Wu, A.W.: Lubricants for magnetic rigid disks. International Tribology Conference, Nagoya, pp. 599–604 (1990)

  7. Klaus, E.E., Bhushan, B.: Lubricants in magnetic media—a review. Tribol. Mech. Magn. Storage Syst. IV SP-19, 7–15 (1985)

  8. Marchon, B., Dai, Q., Hendriks, F., Nayak, U.V.: Disk drive having reduced variation of disk surface lubricant layer thickness. US Patent 7002768, 2006

  9. Liu, J., Stirniman, M.J., Gui, J.: Lubricant for thin film storage media. US Patent 6916531, 2005

  10. Ishida, M., Nakakawaji, T., Ito, Y., Matsumoto, H., Tani, H., Ishihara, H.: Lubricant, magnetic disk and magnetic disk apparatus. US Patent 6869536, 2005

  11. Gunsel, S., Venier, C., Chiu, I.-C.: Lubricant for magnetic recording medium and use thereof. US Patent 6667284, 2003

  12. Liu, J., Stirniman, M.J., Gui, J.: Lubricant film containing additives for advanced tribological performance of magnetic storage medium. US Patent 7060377, 2006

  13. Kondo, H., Uchimi, T.: Novel perfluoropolyether derivatives lubricants and magnetic recording medium using the same. US Patent 5453539, 1992

  14. Klaus, E.E., Bhushan, B.: Lubricants in magnetic media. ASLE SP-19, 7–15 (1985)

    Google Scholar 

  15. Sheldon, R.: Catalytic reactions in ionic liquids. Chem. Commun. 2399–2403 (2001). doi:10.1039/b107270f

    Article  Google Scholar 

  16. Ohno, H.: Electrochemical aspects of ionic liquids. Wiley-Interscience, Hoboken, NJ (2005)

    Google Scholar 

  17. Visser, A.E., Swatloski, R.P., Reichert, W.M., Davis Jr., J.H., Rogers, R.D., Mayton, R., Sheff, S., Wierzbicki, A.: Task-specific ionic liquids for the extraction of metal ions from aqueous solutions. Chem. Commun. 135–136 (2001)

  18. Anderson, J.L., Armstrong, D.W.: High-stability ionic liquids. A new class of stationary phases for gas chromatography. Anal. Chem. 75, 4851–4858 (2003). doi:10.1021/ac0345749

    Article  CAS  Google Scholar 

  19. Gordon, C.M.: New developments in catalysis using ionic liquids. Appl. Catal. Gen. 222, 101–117 (2001). doi:10.1016/S0926-860X(01)00834-1

    Article  CAS  Google Scholar 

  20. Ye, C., Liu, W., Chen, Y., Yu, L.: Room temperature ionic liquids: a novel versatile lubricant. Chem. Commun. 2244–2246 (2001)

  21. Liu, W., Ye, C., Gong, Q., Wang, H., Wang, P.: Tribological performance of room-temperature ionic liquids as lubricant. Tribol. Lett. 13, 81–85 (2002). doi:10.1023/A:1020148514877

    Article  CAS  Google Scholar 

  22. Xu, W., Angel, C.A.: Science 302, 422 (2003). doi:10.1126/science.1090287

    Article  CAS  Google Scholar 

  23. Yoshizawa, M., Xu, W., Angel, C.A.: Ionic liquids by proton transfer: vapor pressure, conductivity, and the relevance of pK a from aqueous solutions. J. Am. Chem. Soc. 125, 15411–15419 (2003). doi:10.1021/ja035783d

    Article  CAS  Google Scholar 

  24. Greaves, T.L., Weerawardene, A., Fong, C., Krodkiewska, I., Drummond, C.J.: Protic ionic liquids: solvents with tunable phase behavior and physicochemical properties. Phys. Chem. B 110, 22479–22487 (2006). doi:10.1021/jp0634048

    Article  CAS  Google Scholar 

  25. Kohler, F., Atrops, H., Kalall, H., Liebermann, E., Wilhelm, E., Ratkovics, F., et al.: Molecular interactions in mixtures of carboxylic acids with amines. 1. Melting curves viscosities. J. Phys. Chem. 85, 2520–2524 (1981)

    Article  CAS  Google Scholar 

  26. Kohler, F., Gopal, R., Goetze, G., Atrops, H., Demiriz, M.A., Liebermann, E., et al.: Molecular interactions in mixtures of carboxylic acids with amines. 2. Volumetric, conductimetric, and NMR properties. J. Phys. Chem. 85, 2524–2529 (1981). doi:10.1021/j150617a022

    Article  CAS  Google Scholar 

  27. Kondo, H.: Magnetic thin film media. Japanese Patent 2581090, 1987

  28. Kondo, H., Seto, J., Ozawa, K., Haga, S.: Novel lubricant for magnetic thin film media. J. Magn. Soc. Jpn. 13(Suppl S1), 213–218 (1989)

    Google Scholar 

  29. Kondo, H., Seki, A., Watanabe, H., Seto, J.: Frictional properties of novel lubricants for magnetic thin film media. IEEE Trans. Magn. 26, 2691–2693 (1990). doi:10.1109/20.104840

    Article  CAS  Google Scholar 

  30. Kondo, H., Seki, A., Kita, A.: Comparison of an amide and amine salt as friction modifiers for a magnetic thin film medium. Tribol. Trans. 37, 99–105 (1994). doi:10.1080/10402009408983271

    Article  CAS  Google Scholar 

  31. Kondo, H., Hisamichi, Y., Kamei, T.: Lubrication of modified perfluoropolyether on magnetic media. J. Magn. Magn. Mater. 155, 332–334 (1996). doi:10.1016/0304-8853(95)00700-8

    Article  CAS  Google Scholar 

  32. Kondo, H., Kaneda, Y.: Development of modified perfluoropolyether tape. International tribology conference–AUSTRIB ‘94 Perth, Australia, 5–8 Dec 1994, pp. 415–420 (1994)

  33. Seki, A., Kondo, H.: FTIR reflection absorption spectra of novel lubricant layers on magnetic thin film media. J. Magn. Soc. Jpn 15(Suppl S2), 745–750 (1991)

    Google Scholar 

  34. Chiba, K., Sato, K., Ebine, Y., Sasaki, T.: Metal evaporated tape for high band 8 mm video system. IEEE Trans. Consum. Electron. 35, 421–425 (1989). doi:10.1109/30.44299

    Article  Google Scholar 

  35. Sato, S., Arisaka, Y., Matsumura, S.: Surface design of aramid film for future ME tapes. IEEE Trans. Magn. 35, 2760–2762 (1999). doi:10.1109/20.800977

    Article  CAS  Google Scholar 

  36. Kondo, H., Aoki, M., Seto, J.: Tribochemical reactions on the surfaces of thin-film magnetic media. Tribol. Trans. 36(2), 193–200 (1993). doi:10.1080/10402009308983148

    Article  CAS  Google Scholar 

  37. Linder, R.E., Mee, P.B.: ESCA determination of fluorocarbon lubricant film thickness on magnetic disk media. IEEE Trans. Magn. 18, 1073–1076 (1982). doi:10.1109/TMAG.1982.1062144

    Article  Google Scholar 

  38. Toney, M.F., Mate, C.M., Pocker, D.: Calibrating ESCA and ellipsometry measurements of perfluoropolyether lubricant thickness. IEEE Trans. Magn. 34, 1774–1776 (1998). doi:10.1109/20.706702

    Article  CAS  Google Scholar 

  39. Kondo, H., Nishida, Y.: Quantitative analysis of surface functional groups on the amorphous carbon in magnetic media with XPS preceded by chemical derivatization. Bull. Chem. Soc. Jpn. 80, 1405–1412 (2007). doi:10.1246/bcsj.80.1405

    Article  CAS  Google Scholar 

  40. Kawana, T., Takeda, T., Uchimi, T., Sato, K.: Archival stability of metal evaporated tape. J. Magn. Magn. Mater. 155, 273–275 (1996). doi:10.1016/0304-8853(95)00729-6

    Article  CAS  Google Scholar 

  41. Kondo, H., Aoki, M., Seto, J.: Tribochemical reactions on the surface of thin film magnetic media. Tribol. Trans. 36, 193–200 (1993). doi:10.1080/10402009308983148

    Article  CAS  Google Scholar 

  42. Beltzer, M., Jahanmir, S.: Role of dispersion interactions between hydrocarbon chains in boundary lubrication. ASLE Trans. 30, 47–54 (1986)

    Google Scholar 

  43. Kondo, H.: Effect of double bonds on friction in the boundary lubrication of magnetic thin film media. Wear 202, 149–155 (1997). doi:10.1016/S0043-1648(96)07265-1

    Article  CAS  Google Scholar 

  44. Cong, P., Igari, T., Mori, S.: Effects of film characteristics on frictional properties of carboxylic acid monolayers. Tribol. Lett. 9, 175–179 (2000). doi:10.1023/A:1018860905694

    Article  CAS  Google Scholar 

  45. Overney, R.M., Meyer, E., Frommer, J., Gruntherodt, H.-J., Fujihira, M., Takano, H., et al.: Force microscopy study of friction and elastic compliance of phase-separated organic thin films. Langmuir 10, 1281–1286 (1994). doi:10.1021/la00016a049

    Article  CAS  Google Scholar 

  46. Marchionni, G., Ajroldi, G., Righetti, M.C., Pezzin, G.: Molecular interactions in perfluorinated and hydrogenated compounds. Macromolecules 26, 1751–1757 (1993). doi:10.1021/ma00059a039

    Article  CAS  Google Scholar 

  47. Moulder, J.F., Hammond, J.S., Smith, K.L.: Using angle resolved ESCA to characterize Winchester disks. Appl. Surf. Sci. 25, 446–454 (1986). doi:10.1016/0169-4332(86)90087-5

    Article  CAS  Google Scholar 

  48. Kimachi, K., Yoshimura, F., Hoshino, M., Terada, A.: Uniformity quantification of lubricant layer on magnetic recording media. IEEE Trans. Magn. 23, 2392–2394 (1987). doi:10.1109/TMAG.1987.1065342

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Hirofumi Kondo.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kondo, H. Protic Ionic Liquids with Ammonium Salts as Lubricants for Magnetic Thin Film Media. Tribol Lett 31, 211–218 (2008). https://doi.org/10.1007/s11249-008-9355-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11249-008-9355-9

Keywords

Navigation