Liu Ying, Gao Gengyuan, Jiang Dan, Yin Zhongwei
School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
ACS Omega. 2022 Feb 22;7(9):7737-7744. doi: 10.1021/acsomega.1c06524. eCollection 2022 Mar 8.
Hybrid poly(tetrafluoroethylene) (PTFE)/Nomex fabric laminate composites were prepared with phenolic and epoxy resins. A pin-on-disc tribometer was used to perform tribological tests with different applied loads and rotational speeds. The wear surface, transfer film, and cross section were analyzed by scanning electron microscopy (SEM) and optical microscopy. The results showed that the epoxy resin with high strength and good binding properties can enhance underwater tribological and mechanical properties. The underwater surface hardness was also improved by the epoxy resin. The underwater strength and adhesiveness of the phenolic resin reduced and the underwater surface hardness also decreased, causing a decrease in underwater tribological and mechanical properties of the phenolic resin.
采用酚醛树脂和环氧树脂制备了聚四氟乙烯（PTFE）/Nomex织物混杂层压复合材料。使用销盘摩擦磨损试验机在不同的加载载荷和转速下进行摩擦学测试。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，具有高强度和良好粘结性能的环氧树脂可增强水下摩擦学性能和力学性能。环氧树脂还提高了水下表面硬度。酚醛树脂的水下强度和粘附性降低，水下表面硬度也下降，导致酚醛树脂的水下摩擦学性能和力学性能降低。
