Enhancing the Tribological Performance of Conductive Grease Through the Modification of Polypyrrole with Ionic Liquids  

作　　者：Xia Yanqiu Chen Wenhao Jiang Zhirong Yang Kuo 

机构地区：[1]School of Energy Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China

出　　处：《China Petroleum Processing & Petrochemical Technology》2024年第3期158-172,共15页中国炼油与石油化工（英文版）

基　　金：The authors would like to appreciate the financial support extended for this academic work by the Beijing Natural Science Foundation(Grants 2172053,2232066);the Open Project Foundation of State Key Laboratory of Solid Lubrication(Grant LSL-2212).

摘　　要：This study prepared four types of ionic liquid-modified polypyrrole(IL-modified PPy)as conductive additives and investigated their tribological performance and conductivity in polytetrafluoroethylene lubricating grease.The results indicated that IL-modified PPy effectively enhanced the anti-wear performance and conductivity of the base grease.Among the additives,1-octyl-3-methylimidazolium tetrafluoroborate([OMIm][BF4])modified PPy showed superior performance compared to the other three additives,with the best effect observed at a mass fraction of 0.5%.X-ray photoelectron spectroscopy analysis revealed that IL-modified PPy forms a stable friction chemical film during the friction process,effectively enhancing the lubrication performance and conductivity of the base grease.This indicates broad potential applications in the field of conductive lubrication.

关 键 词：conductive lubricating grease ILs modified PPy anti-friction and anti-wear additive 

分 类 号：TH117.22[机械工程—机械设计及理论] O645.1[理学—物理化学]