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Friction 2013, 1(3): 252-258 https://doi.org/10.1007/s40544-013-0022-2
Research Article | Open Access | Issue | Published: 06 September 2013

Mechanism of friction reduction of unsaturated fatty acids as additives in diesel fuels

Show Author's Information Jean Michel MARTIN1,*( ),  Christine MATTA1,  Maria-Isabel De Barros BOUCHET1,  Cyrielle FOREST1,  Thierry Le MOGNE1,  Thomas DUBOIS2,  Michael MAZARIN2
Laboratory of Tribology and System Dynamics, Ecole Centrale de Lyon, 69134 Ecully, France
TOTAL, CReS, BP22, 69360 Solaize Cedex, France
Keywords:
low friction, tribochemistry, biodiesel, fatty acids, surface analysis
Cite this article:
MARTIN JM, MATTA C, BOUCHET M-IDB, et al. Mechanism of friction reduction of unsaturated fatty acids as additives in diesel fuels. Friction, 2013, 1(3): 252-258. https://doi.org/10.1007/s40544-013-0022-2
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Abstract Full text About this article

This paper investigates the effect of unsaturated fatty acid additives on the lubricating properties of a biodiesel, composed of a blend of fatty acid methyl esters (FAMEs) and a conventional diesel fuel. The presence of fatty acids as additives for biodiesel improves their lubricating properties at elevated temperature conditions. The formation of a protective lubricating tribochemical film on the steel contact surfaces has been evidenced. Elevated temperature conditions and possibly oxygen are needed to form this film that reduces friction and limits wear. Several analytical tools have revealed the insulating nature of the formed tribofilm and its chemical properties. Friction-induced reticulation is thought to play a major role in the growth of this insulating film.


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About this article

Mechanism of friction reduction of unsaturated fatty acids as additives in diesel fuels

Show Author's information Jean Michel MARTIN1,*( ), Christine MATTA1, Maria-Isabel De Barros BOUCHET1, Cyrielle FOREST1, Thierry Le MOGNE1, Thomas DUBOIS2, Michael MAZARIN2
Laboratory of Tribology and System Dynamics, Ecole Centrale de Lyon, 69134 Ecully, France
TOTAL, CReS, BP22, 69360 Solaize Cedex, France

Abstract

This paper investigates the effect of unsaturated fatty acid additives on the lubricating properties of a biodiesel, composed of a blend of fatty acid methyl esters (FAMEs) and a conventional diesel fuel. The presence of fatty acids as additives for biodiesel improves their lubricating properties at elevated temperature conditions. The formation of a protective lubricating tribochemical film on the steel contact surfaces has been evidenced. Elevated temperature conditions and possibly oxygen are needed to form this film that reduces friction and limits wear. Several analytical tools have revealed the insulating nature of the formed tribofilm and its chemical properties. Friction-induced reticulation is thought to play a major role in the growth of this insulating film.

Keywords: low friction, tribochemistry, biodiesel, fatty acids, surface analysis

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Publication history

Received: 07 June 2013
Revised: 02 August 2013
Accepted: 05 August 2013
Published: 06 September 2013
Issue date: September 2013

Copyright

© The author(s) 2013

Acknowledgements

The authors would like to thank T. Buffeteau and G. Le Bourdon from Molecular Spectroscopy Group at Bordeaux University in France for performing PM-IRAS analyses and interpreting the data.

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This article is published with open access at Springerlink.com

Open Access: This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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