Tribochemistry of Fluorinated Fluids Hydroxyl Groups on Steel and Aluminum Surfaces

This paper describes products of tribochemical reactions of Z-Dol 2500 and 1H,1H,2H,2H-tetra-fluorooctanol, produced on steel and aluminum surfaces. The fluorooctanol was used as a model compound to study the reactions of hydroxyl groups. Tribochemical reactions were initiated by friction in the ste...

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Bibliographic Details
Published in:ASLE transactions 2006-04, Vol.49 (2), p.202-214
Main Authors: Przedlacki, Marcin, Kajdas, Czesław
Format: Article
Language:English
Subjects:
Applied sciences
Boundary Lubrication
Chemical reactions
Chemistry
Exact sciences and technology
Fluids
Fluorocarbons
Fourier Transform Infrared Spectroscopy
Friction
Friction, wear, lubrication
Machine components
Mechanical engineering. Machine design
Metals
Polyethers
Scientific imaging
Tribology
X-Ray Photoelectron Spectroscopy
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Summary:This paper describes products of tribochemical reactions of Z-Dol 2500 and 1H,1H,2H,2H-tetra-fluorooctanol, produced on steel and aluminum surfaces. The fluorooctanol was used as a model compound to study the reactions of hydroxyl groups. Tribochemical reactions were initiated by friction in the steel/steel and steel/Al contacts, using an Optimol SRV (Schwingung Reibung Verschleiβ) reciprocating sliding tester. The products of these reactions, deposited in the wear scars on steel and Al discs, were studied using reflective FTIR spectrometry (microscopy and grazing angle) and X-Ray photoelectron spectroscopy (XPS). Under boundary lubrication conditions on metal surfaces, fluorinated compounds containing hydroxyl groups formed carboxylic and alkoxyl salts. FTIR spectra indicate that Fe and Al carboxylic salts occur mainly in bidentate configuration. Presented at the STLE Annual Meeting in Las Vegas, Nevada May 15-19, 2005 Review led by Tom Karis
ISSN:1040-2004
0569-8197
1547-397X
DOI:10.1080/05698190500544676