Investigations of Antifriction Films Formation in Dioctyl Sebacate Medium with Cholesteryl Esters

  • M. V. BoikoEmail author
  • A. P. Sychev
  • I. V. Kolesnikov
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


In the article, investigations of antifriction films formation at friction in dioctyl sebacate (DOS) medium with additives of cholesteryl esters of caproic and oleic acids. The relevance of the study is due to the development of biodegradable lubricants. The time required to achieve a friction coefficient of 0.02 in DOS medium occurs after 20,000 s from the start of the test, in DOS with 3% LCKA medium after 13,000 s, and DOS with 3% LCOA medium after 1000 s. The elemental analysis of antifriction films showed that the films contain organic and inorganic components. The organic part consists of dioctyl sebacate molecules. The inorganic part includes iron compounds. Cholesteryl esters are capable of planar orientation on friction surfaces and form layered structures in the zone of tribocontact. This provides an additional reduction in the friction coefficient and an increase in the energy-saving properties of the lubricant. This effect is achieved due to the realization in the friction zone of the mesomorphic state of a lubricant, which is characterized by an ordered oriented arrangement of the molecules of the mesogenic additive.


Antifriction film Lubricants Cholesteryl ester of caproic acid Cholesteryl ester of oleic acid Dioctyl sebacate IR spectroscopy Scanning electron microscopy 



The study has been supported of the Russian Science Foundation (project No. 18-19-00292).


  1. 1.
    Persson BNJ (2000) Sliding friction. In: Physical principles and applications. Berlin, HeidelbergGoogle Scholar
  2. 2.
    Chan C-H, Tang SW, Mohd NK et al (2018) Tribological behavior of biolubricant base stocks and additives. Renew Sustain Energy Rev 93:145–157. Scholar
  3. 3.
    Colyer CC (2017) The SAE Lubricants Review Institute—purpose and operation. Society of Automotive Engineers IncGoogle Scholar
  4. 4.
    Turner CH, Oldridge K (1987) Rolling lubricants in today’s environment. Steel Times 9:462–466Google Scholar
  5. 5.
    dos Santos Corrêa IN, da Silva SSP, de Queiroz DS et al (2016) Enzymatic synthesis of dioctyl sebacate. J Mol Catal B Enzym 133:S166–S171. Scholar
  6. 6.
    Renewable Lubricants Inc. (2006) Understanding biobased/biodegradable and the industry’s standardized tests and definitions. Accessed 07 June 2006
  7. 7.
    Zainal NA, Zulkifli NWM, Gulzar M, Masjuki HH (2018) A review on the chemistry, production, and technological potential of bio-based lubricants. Renew Sustain Energy Rev 82:80–102. Scholar
  8. 8.
    Mannekote JK, Kailas SV, Venkatesh K, Kathyayini N (2018) Environmentally friendly functional fluids from renewable and sustainable sources—a review. Renew Sustain Energy Rev 81:1787–1801. Scholar
  9. 9.
    Biresaw G et al (1990) Tribology and the liquid-crystalline state. In: American Chemical Society, Symposium Series, I, vol 441Google Scholar
  10. 10.
    Chen H, Xu C, Xiao G et al (2018) Ultralow friction between steel surfaces achieved by lubricating with liquid crystal after a running-in process with acetylacetone. Tribol Lett 2:68. Scholar
  11. 11.
    Rodnenkov VG, Kupchinov BI (2000) Tribological behavior of liquid crystalline cholesterol compounds. Trenie Iznos 1:41–46Google Scholar
  12. 12.
    Iglesias P, Bermúdez MD, Carrión FJ, Martínez-Nicolás G (2004) Friction and wear of aluminium-steel contacts lubricated with ordered fluids-neutral and ionic liquid crystals as oil additives. Wear 3–4:386–392. Scholar
  13. 13.
    Ermakov SF, Parkalov VP, Shardin VA, Shuldykov RA (2004) The effect of liquid crystalline additives on the triboengineering characteristics of dynamically contacting surfaces and the mechanism of their friction interaction. Trenie Iznos 2:213–218Google Scholar
  14. 14.
    Ermakov SF, Beloenko ED, Eismont OL (2004) The role of liquid crystals in tribomechanical properties of joint cartilages. Trenie Iznos 5:486–491Google Scholar
  15. 15.
    Berezina EV, Godlevskiy VA, Usol’Tseva NV (2016) Investigation of cholesteric liquid crystals and carbon nanotubes additives on mineral oil antifrictional and rheological characteristics. Procedia Eng 150:579–583. Scholar
  16. 16.
    Ermakov SF, Kolesnikov VI, Sychev AP (2016) Lubricity of cholesteric liquid-crystal nanomaterials in friction of solids. J Friction Wear 2:136–140. Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • M. V. Boiko
    • 1
    Email author
  • A. P. Sychev
    • 1
  • I. V. Kolesnikov
    • 1
  1. 1.Rostov State Transport UniversityRostov-on-DonRussia

Personalised recommendations