the application of graphene in the field of lubricants had been paid much attention originating from its excellent self-lubrication
mechanical and thermal properties. However
graphene had poor dispersion and easily reunited in oil
which is the key factor limiting the use of graphene in lubricants. To obtain the graphene lubricant additive (MGLOA) with excellent lubrication performance and stable dispersibility
long chain alkanes were grafted on the surfaces of graphene and the oleophilic modified graphene microchip (MGM) was obtained. Otherwise
the formula of lubricant additives (LOA) had been improved to strengthen the interaction between MGM and LOA
which was conducive to further promote the stable dispersion of MGM and showed synergistic lubrication with MGM. The results indicated that the use of MGM and/or LOA can fantastic increase the extreme-pressure lubrication performance of commercial lubricating oils and the optimal amount of MGM and LOA in other lubricants was 0.004 %(mass) and 5%(mass)
respectively. The pressure lubrication performances of lubricating oils with 5%(mass) MGLOA-800 (MGM has a content of 0.08 %(mass) in LOA) were improved more than 11 times process. And in application
the process shows good cooling
noise reduction and vibration reduction.
关键词
Keywords
references
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