Tribochemistry of monomolecular lubricant films of ethanolamine oligomers

A. Tomala, W. S M Werner, I. C. Gebeshuber, N. Dörr, H. Störi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The aim of present study was to find out the influence of oxygen and nitrogen containing ethanolamine oligomers on the tribological behavior. X-ray photoelectron spectroscopy (XPS) was used to obtain insight into the molecular mechanisms leading to the macroscopic lubricity. Monomolecular lubricant films were deposited onto ultra thin copper films sputtered onto silicon wafers. Surfaces covered with the three ethanolamine oligomers were investigated by XPS before and after tribological tests, performed with the translatorily oscillating test machine and Falex micro-tribometer. The structure of the molecular film is elucidated using angular resolved X-ray photoelectron spectroscopy with a prototype preparation chamber, permitting the transfer of samples from liquid to the analysis chamber under Helium protective gas preventing exposure to ambient conditions. Solutions with a concentration of 250 ppm of the respective ethanolamine oligomers in double distilled water were transferred into the adsorption device, which is an extension of the spectrometer. Results show that compounds bond to copper and steel surface by N atom present in ammonia group and hydroxyl group are oriented on the top layer of tribofilm, this highest group influence lubricity properties.

Original languageEnglish
Pages (from-to)1513-1518
Number of pages6
JournalTribology International
Volume42
Issue number10
DOIs
Publication statusPublished - Oct 2009
Externally publishedYes

Fingerprint

Ethanolamines
Ethanolamine
lubricants
oligomers
Oligomers
Lubricants
X ray photoelectron spectroscopy
photoelectron spectroscopy
Copper
chambers
copper
Helium
tribometers
x rays
Steel
Silicon wafers
Ammonia
Hydroxyl Radical
Spectrometers
ammonia

Keywords

  • Angular resolved X-ray photoelectron spectroscopy (AR-XPS)
  • Chemisorption
  • Corrosion inhibitors
  • Self assembly monolayer (SAM)
  • Water lubrication system

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Tomala, A., Werner, W. S. M., Gebeshuber, I. C., Dörr, N., & Störi, H. (2009). Tribochemistry of monomolecular lubricant films of ethanolamine oligomers. Tribology International, 42(10), 1513-1518. https://doi.org/10.1016/j.triboint.2009.06.004

Tribochemistry of monomolecular lubricant films of ethanolamine oligomers. / Tomala, A.; Werner, W. S M; Gebeshuber, I. C.; Dörr, N.; Störi, H.

In: Tribology International, Vol. 42, No. 10, 10.2009, p. 1513-1518.

Research output: Contribution to journalArticle

Tomala, A, Werner, WSM, Gebeshuber, IC, Dörr, N & Störi, H 2009, 'Tribochemistry of monomolecular lubricant films of ethanolamine oligomers', Tribology International, vol. 42, no. 10, pp. 1513-1518. https://doi.org/10.1016/j.triboint.2009.06.004
Tomala, A. ; Werner, W. S M ; Gebeshuber, I. C. ; Dörr, N. ; Störi, H. / Tribochemistry of monomolecular lubricant films of ethanolamine oligomers. In: Tribology International. 2009 ; Vol. 42, No. 10. pp. 1513-1518.
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