短碳纤维增强PPEK复合材料的性能研究  

Properties of Short Carbon Fiber Reinforced PPEK Composites

作　　者：廖功雄[1] 何伟[1] 董黎明[1] 靳奇峰[1] 蹇锡高[1] 

机构地区：[1]大连理工大学高分子材料系,大连116012

出　　处：《宇航材料工艺》2005年第2期22-24,28,共4页Aerospace Materials & Technology

基　　金：国家"863"计划(2003AA33g030);辽宁省重大科技计划(2003223003);国家"973"基础研究计划(2003CB615700)资助

摘　　要：采用熔融共混的方式制备了不同短碳纤维含量增强含二氮杂萘酮聚芳醚酮(PPEK)基复合材料,对复合材料的加工性能、力学性能、摩擦性能、耐热性进行了研究。结果表明:短碳纤维增强复合材料均可以注塑成型;短碳纤维对PPEK的增强作用明显,拉伸强度和弯曲强度均有大幅提高;复合材料中短碳纤维起到了明显的自润滑作用,复合材料的摩擦系数和磨损率均随碳纤维含量的增加而明显降低;短碳纤维的加入进一步提高了复合材料的耐热性。Injection-class poly(phthalazinone ether ketone) composites with different short carbon fiber compositions are meltingly prepared in a twin screw extruder, and their processability, mechanical, thermal and tribological properties are studied. The composites can be processed by melting injection molding. Tensile strength and flexural strength increase with increase of short carbon fiber content, which indicates that short carbon fiber has a reinforcing effect on the mechanical property of the composites. Meanwhile, short carbon fiber is a self-lubricant in the composites, so the friction coefficient and wear rate of the composites decrease with increase of carbon fiber content. When carbon fiber is added, the composite has higher heat deflection temperature in comparison with the pure poly(phthalazinone ether ketone).

关 键 词：PPEK 性能研究 碳纤维增强复合材料 短碳纤维 纤维含量 二氮杂萘酮 聚芳醚酮 熔融共混 加工性能 力学性能 摩擦性能 注塑成型 增强作用 弯曲强度 拉伸强度 润滑作用 耐热性 磨损率 系数和 

分 类 号：TQ326.5[化学工程—合成树脂塑料工业] TS202.3[轻工技术与工程—食品科学]