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Probing the lubricative behaviors of a high MXene-content epoxy-based composite under dry sliding
Tribology International ( IF 6.2 ) Pub Date : 2021-10-14 , DOI: 10.1016/j.triboint.2021.107314
Cheng-Feng Du 1 , Zijiao Wang 1 , Xiaomei Wang 1 , Xiangyuan Zhao 1 , Jingde Gao 1 , Yaqing Xue 1 , Yuhui Jiang 1 , Hong Yu 1 , Qian Ye 1
Affiliation  

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.



中文翻译:

在干滑动下探索高 MXene 含量环氧基复合材料的润滑行为

在这项工作中,成功地制备了一系列具有高 Ti 3 C 2 T x MXene 含量的环氧基复合材料作为固体润滑剂。优化后的 MXene 含量为 70 wt%,复合材料的摩擦系数 (COF) 显着降低,比纯环氧树脂低约 34%,在 5 N 的正常负载下低至 0.39。关于表面形貌和化学成分的演变,提出了环氧树脂作为功能性粘合剂在形成具有良好附着力和润滑性能的稳定转移摩擦膜方面的关键作用。此外,Ti 3 C 2 T x的摩擦行为和润滑机制还提出了 / 环氧树脂复合材料,这归因于 Ti 3 C 2 T x纳米薄片的间隙填充和滑动介质作用。

更新日期:2021-10-29
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