Ultra-low wear in multifunctional Ti3C2Tx/PI composite films induced by tribo-chemistry mechanism

Guojing Chen, Shuai Jiang, Yufei Huang, Haosheng Pang, Xuan Yin*, Chunpeng Chai

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

7 引用 (Scopus)

摘要

Ti3C2Tx MXene was cooperated with polyimide (PI) to improve the wear resistance of the PI matrix under complex working conditions. Compared to the pristine PI, the Ti3C2Tx/PI composites have excellent frictional properties, specifically, the coefficient of friction is 0.32 and the wear rate is 0.62 × 10−5 mm3/(N·m). The composites formed a transfer film on the contact surface during the friction process, and the transfer film prevents direct contact between tribo-couples. The results studied by Raman and XPS showed that the transfer film contains TiO2 that is derived from oxidized Ti3C2Tx. Moreover, the tribological mechanism has been summarized as two aspects: On one hand, the relative sliding of the Ti3C2Tx lamellae transfers the sliding stress. On the other hand, a transfer film is created between Ti3C2Tx/PI composites and steel ball during friction that prevents further wear of the material. All in all, two-dimensional MXene can effectively improve the wear resistance of the polymer matrix and has the potential to be used in friction-protective layers under complex working conditions.

源语言英语
文章编号105744
期刊Reactive and Functional Polymers
193
DOI
出版状态已出版 - 12月 2023

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Chen, G., Jiang, S., Huang, Y., Pang, H., Yin, X., & Chai, C. (2023). Ultra-low wear in multifunctional Ti3C2Tx/PI composite films induced by tribo-chemistry mechanism. Reactive and Functional Polymers, 193, 文章 105744. https://doi.org/10.1016/j.reactfunctpolym.2023.105744