材料科学
润滑油
石墨烯
电导率
导电体
复合材料
离子液体
接触电阻
纳米技术
化学工程
图层(电子)
化学
有机化学
物理化学
工程类
催化作用
作者
Gangqiang Cheng,Xiao Li,Duo Zhang,Baoying Lv,Ming Zhou,Ge Zhuang,Ziyan Liu,Q. Li,Youtang Mo,Chaogui Luo
标识
DOI:10.1002/adem.202301629
摘要
Herein, improving the conductivity of the lubricant itself is the main idea behind current‐conductive lubricant designs. However, as per previous studies, the interface state has a more dominant influence on the interface conductivity than the conductivity of the lubricant. Therefore, improving the interface state is a more direct and effective way to improve the interface conductivity. In this study, improving the interface state is the primary idea underlying the design of a conductive lubricant. Multilayer graphene/ionic liquid (MG/IL) composites with excellent interfacial adsorption properties are prepared using IL non‐covalently modified graphene. Subsequently, corresponding conductive greases are synthesized using MG, IL, and MG/IL as additives. The lubricating and conductive properties of these greases are characterized by performing current‐carrying friction tests. In the results, it is shown that when MG/IL is used as an additive, the grease exhibits excellent lubricating performance and the lowest average contact resistance. This finding is primarily attributed to the MG and IL in MG/IL acting synergistically to improve the interface state significantly, which decreases the contact resistance and increases the conductivity of the friction interface. In this work, a novel idea is provided for the design of conductive lubricants.
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