碳纤维增强尼龙66低磨耗复合材料制备及性能研究  

Study on Preparation and Properties of Carbon Fiber Reinforced Nylon 66 Low Wear Composite

作　　者：刘树文 邱军[1] 刘文君[3] 陈广强 LIU Shu-wen;QIU Jun;LIU Wen-jun;CHEN Guang-qiang(School of Materials Science and Engineering,Tongji University,Shanghai 201804,China;Pan Asia Automotive Technology Center Co.,Ltd.,Shanghai 201201,China;Kingfa Science&Technology Co.,Ltd.,Guangzhou 510663,China)

机构地区：[1]同济大学材料科学与工程学院,上海201804 [2]泛亚汽车技术中心有限公司,上海201201 [3]金发科技股份有限公司,广东广州510663

出　　处：《塑料工业》2021年第9期34-38,48,共6页China Plastics Industry

摘　　要：使用双螺杆挤出机熔融共混制备了碳纤维/尼龙66复合材料,研究了碳纤维含量对碳纤维/尼龙66复合材料性能的影响。加工工艺对碳纤维/尼龙66复合材料的性能有较大的影响,合适的注塑工艺有助于达到最佳的力学性能。结果表明,碳纤维对尼龙66有显著的增强作用,30%碳纤维增强PA66的综合性能最为平衡。碳纤维和聚四氟乙烯(PTFE)的加入,可以有效改善尼龙66的摩擦性能。探讨了PA66+CF+PTFE体系摩擦性能优良的机理:碳纤维的硬度高于基体尼龙66的硬度,其石墨结构具有一定的自润滑作用,再加之PTFE的润滑效果使该体系具有优异的耐摩擦性能。In this study,the carbon fiber reinforced nylon 66 composite was prepared by melt blending with twin-screw extruder.The effect of carbon fiber content on the properties of carbon fiber/nylon 66 composites was studied.The process technology had great effect on the properties of carbon fiber/nylon 66 composite,and the suitable injection process could achieve the best mechanical properties.The research results show that carbon fiber has a significant reinforcing effect on nylon 66,and the comprehensive performance of 30%carbon fiber reinforced PA66 is the most balanced.The addition of carbon fiber and polytetrafluoroethylene(PTFE)could effectively improve the friction performance,and the mechanism is discussed.The hardness of carbon fiber is higher than that of nylon 66,its graphite structure has a certain self-lubricating effect,and the lubrication effect of PTFE making the system has excellent friction resistance.

关 键 词：尼龙66 碳纤维 增强 聚四氟乙烯 摩擦性能 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]