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采用超细聚四氟乙烯(PTFE)粉末作为减摩功能填料,碳纤维(CF)作为增强材料,制备了CF-PTFE/PA6复合材料;利用60Co-γ射线对该复合材料进行了辐射改性,对复合材料的力学性能和摩擦学性能进行了研究,并采用SEM观察了该复合材料冲击断面的表面形貌。结果表明:添加8%的PTFE和13%的CF的CF-PTFE/PA6复合材料不仅具有较好的力学强度和摩擦学性能,而且经过120 kGy辐射处理后,其弯曲强度、拉伸强度和冲击强度分别提高了9.9%、7.9%和11.7%。
The ultrafine polytetrafluoroethylene (PTFE) powder was used as antifriction functional filler and carbon fiber (CF) as reinforcing material to prepare CF-PTFE / PA6 composite. The composite was irradiated by 60Co- The mechanical properties and tribological properties of the composites were investigated. SEM was used to observe the surface morphology of the impact cross section. The results show that CF-PTFE / PA6 composites with 8% PTFE and 13% CF not only have good mechanical and tribological properties, but also have better flexural strength, tensile strength and impact after 120 kGy radiation treatment The intensity increased by 9.9%, 7.9% and 11.7% respectively.