摩擦学
润滑油
润滑
材料科学
纳米材料
基础油
纳米颗粒
纳米复合材料
聚四氟乙烯
摩擦系数
复合材料
纳米技术
扫描电子显微镜
作者
Yu‐Hong Cui,Shenghua Xue,Zihan Liu,Tiantian Wang,Shujuan Liu,Yingyi Qian,Feng Zhou,Weimin Liu
出处
期刊:Carbon
[Elsevier]
日期:2024-02-01
卷期号:220: 118896-118896
标识
DOI:10.1016/j.carbon.2024.118896
摘要
Nanomaterials play an important role in reducing friction and wear when used as lubricating additives. Due to synergistic effects, nanocomposites often have superior lubrication properties than individual materials. Therefore, based on the structural differences between MXene and phenolic resin modified polytetrafluoroethylene (mPTFE), MXene@mPTFE composites with multiple heterogeneous structures are designed and constructed. As expected, the synergistic effect of layered MXene and mPTFE nanoparticles endows MXene@mPTFE excellent tribological performance. Under the action of shear force, mPTFE nanoparticles accelerate the interlayer slip between MXene nanosheets, and mPTFE nanoparticles with high hardness and thermal stability act as ball bearings to improve the extreme pressure characteristics of the oil. Compared to base oil (PAO-6), the coefficient of friction (COF) decreased from 0.644 to 0.111, the wear volume decreased by 92.7 %, and the bearing capacity increased to 750 N. This study provides new implications for the development of nanolubricant additives.
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