SHANDONG SCIENCE ›› 2018, Vol. 31 ›› Issue (2): 45-49.doi: 10.3976/j.issn.1002-4026.2018.02.008

• New Materials • Previous Articles     Next Articles

Tribological properties of modified graphene lubricant

XUE Chuan-yi1, WANG Shou-ren1*, LENG Jin-feng2, WANG Gao-qi1, QIAO Yang1   

  1. 1.School of Mechanical Engineering, University of Jinan, Jinan 250022, China;2. School of Materials Engineering, University of Jinan, Jinan 250022, China
  • Received:2017-10-13 Online:2018-04-20 Published:2018-04-20

Abstract:

This paper studied on adding graphene in lubricating oil add to improve its extreme pressure antiwear performance. The surface of graphene was modified by oleic acid and stearic acid. The morphology of modified graphene was analyzed by scanning electron microscopy and Raman spectroscopy. The stability of modified graphene in suspension was observed by spectrophotometer. Friction and wear testing machine was used to test the tribological properties of lubricating oil with modified graphene. The results showed that the morphology of graphene changed after surface modification, which improved the suspension stability in lubricating oil. A modified graphene with a mass fraction of 0.075% was added to the lubricant, whose wear resistance and loadbearing capacity were greatly improved.

Key words: tribology, lubricating oil, graphene, surface modification

CLC Number: 

  • TH117.1