Liu Ying, Gao Gengyuan, Jiang Dan, Yin Zhongwei
School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Materials (Basel). 2021 Dec 22;15(1):62. doi: 10.3390/ma15010062.
This paper studied a hybrid polytetrafluoroethylene (PTFE)/Nomex fabric composite with lower friction coefficient (COF) and high underwater wear resistance. A pin-on-disk tribometer was used to test tribological properties under different applied loads and rotation speeds. The wear surface, transfer film and cross-section were analyzed by scanning electron microscope (SEM) and optical microscope. The results showed enhanced underwater tribological properties because of excellent self-lubricating properties of PTFE fibers and a good lubricating effect and load-carrying capacity of graphite fillers. Improved underwater mechanical strength was connected to the high strength of epoxy resin and high bonding force between Nomex and epoxy resin.
本文研究了一种具有较低摩擦系数（COF）和高水下耐磨性的聚四氟乙烯（PTFE）/Nomex织物混杂复合材料。采用销盘摩擦磨损试验机在不同加载载荷和转速下测试其摩擦学性能。通过扫描电子显微镜（SEM）和光学显微镜对磨损表面、转移膜和横截面进行分析。结果表明，由于PTFE纤维具有优异的自润滑性能以及石墨填料具有良好的润滑效果和承载能力，使得该复合材料的水下摩擦学性能得到增强。水下机械强度的提高与环氧树脂的高强度以及Nomex与环氧树脂之间的高结合力有关。
