Philosophical Magazine Letters ( IF 1.2 ) Pub Date : 2021-04-23 , DOI: 10.1080/09500839.2021.1917780 Ke Zhang 1 , Xin Ji 1 , Yiming Mi 1 , Lei Gao 1 , Tianyu Wang 2
ABSTRACT
A series of polytetrafluoroethylene (PTFE) composites filled with CF (carbon fiber) and MoS2 (molybdenum disulfide) were prepared by cold-pressing sintering. The tensile strength and elongation at the breakpoint of the samples were measured with a bench-top tensile machine, friction and wear performance were tested with an abrasion machine, and the morphology and microscopic structure were analysed by SEM. The results show that the tensile strength, the elongation at breakage, and the wear resistance were all improved after filling compared to the pure PTFE. The CF/MoS2/PTFE composites filled with CF (particle size 7.498 μm) had the optimal tensile strength and elongation at the breakpoint. Correspondingly, the wear rate was the smallest when the particle size was 23.733 μm.
中文翻译:
不同粒径碳纤维对二硫化钼填充聚四氟乙烯复合材料物理性能的影响
摘要
通过冷压烧结制备了一系列填充有CF(碳纤维)和MoS 2(二硫化钼)的聚四氟乙烯(PTFE)复合材料。用台式拉伸机测定试样的拉伸强度和断点伸长率,用磨耗机测试摩擦磨损性能,用扫描电镜分析形貌和显微组织。结果表明,与纯聚四氟乙烯相比,填充后的拉伸强度、断裂伸长率和耐磨性均有所提高。填充有CF(粒径7.498 μm)的CF/MoS 2 /PTFE复合材料在断点处具有最佳的拉伸强度和伸长率。相应地,当粒径为 23.733 μm 时,磨损率最小。