Study on Lubrication of the Leaf-surface Wax of Spruce from Different Regional

doi:10.3901/JME.2017.03.130

Abstract

Abstract:

The Qinghai spruce in Alashan area and green thousand spruce in Shuangyashan are collected, respectively. Their leaf-surface wax are extracted and the composition of the leaf-surface wax are analyzed using the gas chromatography and mass spectrometer(GCMS). The tribological behaviors of the steel-steel and steel-aluminum friction pairs under synthetic ester as base oil and leaf-surface wax as the additive are investigated using MFT-4000 friction and wear tester. The possibility of spruce as green lubricant additive is investigated. The wear surface are characterized and analyzed based on optical microscopy and Time of flight mass spectrometer(SIMS).The results show that leaf-surface wax of the two spruce as additives have better friction reducing and wear resistance properties. The lubrication mechanism is wax composition of polar material formed adsorption or reaction films on worn surface, which plays the functions of friction reducing and wear resistance.

Key words: friction and wear, GCMS and SIMS, spruce leaf-surface wax

MA Jingwen, XIA Yanqiu, FENG Xin, SUN Ping. Study on Lubrication of the Leaf-surface Wax of Spruce from Different Regional[J]. Journal of Mechanical Engineering, 2017, 53(3): 130-137.

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Study on Lubrication of the Leaf-surface Wax of Spruce from Different Regional

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