Probing the lubricative behaviors of a high MXene-content epoxy-based composite under dry sliding

被引：45
作者：
Du, Cheng-Feng [1 ]
Wang, Zijiao [1 ]
Wang, Xiaomei [1 ]
Zhao, Xiangyuan [1 ]
Gao, Jingde [1 ]
Xue, Yaqing [1 ]
Jiang, Yuhui [1 ]
Yu, Hong [1 ]
Ye, Qian [1 ]
机构：
[1] Northwestern Polytech Univ, Ctr Adv Lubricat & Seal Mat, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2022年 / 165卷
关键词：
MXene; Composite; Sliding; Solid lubricant; TRIBOLOGICAL BEHAVIOR; SOLID LUBRICANTS; TITANIUM; FILMS; XPS; MECHANISMS; FRICTION; GRAPHENE; TI3C2TX; SURFACE;
D O I：
10.1016/j.triboint.2021.107314
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this work, a series of epoxy-based composites with high Ti3C2Tx MXene-content are successfully fabricated as the solid lubricant. With an optimized MXene-content of 70 wt%, the composite presents a dramatically reduced coefficient of friction (COF) to about 34% lower than that of the pure epoxy, which is as low as 0.39 at a normal loading of 5 N. Based on the evolution of surface morphology and chemical composition, the critical role of epoxy as a functional binder on forming the stably transferred tribofilm with good adhesion and lubricating performance is proposed. Additionally, the friction behaviors and lubrication mechanism of the Ti3C2Tx/epoxy composite are also presented, which is attributed to the gap-filling and sliding medium roles of the Ti3C2Tx nanoflakes.
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页数：9
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