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Research Article | Open Access

Leaf-surface wax of desert plants as a potential lubricant additive

Yanqiu XIA1( ), Xiaochun XU1, Xin FENG1, Guoxiong CHEN2( )
School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
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Abstract

Using an MFT-R4000 tester at room temperature, the leaf-surface wax of two desert plants, Ammopiptanthus mongolicus (AM) and Reaumuria soongorica (RS), was extracted and evaluated for its potential as a lubricant additive in polyalphaolefin (PAO) for steel–steel contact. Gas chromatography–mass spectrometry analysis was performed to identify the composition of the AM leaf-surface wax, and scanning electron microscopy and X-ray photoelectron spectroscopy were used to investigate its friction mechanisms. The results suggest that the leaf-surface wax could successfully reduce the friction and wear of steel–steel sliding pairs compared with PAO containing molybdenum dithiocarbamate additives. AM, in particular, showed high-performance wear resistance and friction-reducing properties. Its excellent tribological properties were attributed to the wax composition of leaf-surface fatty acids, alcohol, and esters.

Keywords

leaf-surface waxAmmopiptanthus mongolicuslubricant additivefriction and wear

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Friction
Volume 3 Issue 3,
September 2015
Pages 208-213
DOI: 10.1007/s40544-015-0081-7
Cite this article:
XIA Y, XU X, FENG X, et al. Leaf-surface wax of desert plants as a potential lubricant additive. Friction, 2015, 3(3): 208-213. https://doi.org/10.1007/s40544-015-0081-7

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Received: 09 February 2015
Revised: 03 December 2015
Accepted: 17 December 2015
Published: 27 June 2015
© The author(s) 2015

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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