短碳纤维增强聚醚醚酮注塑成型进气道的性能  

Properties of Short Carbon Fiber Reinforced Injection-moulded PEEK Air Inlet

作　　者：刘妍 杜潮 侯树涛 LIU Yan;DU Chao;HOU Shutao(The Institute of China Aerospace Science&Industry Corp.,Beijing 100074)

机构地区：[1]航天特种材料及工艺技术研究所,北京100074

出　　处：《宇航材料工艺》2022年第4期58-61,共4页Aerospace Materials & Technology

摘　　要：以含20%的短碳纤维增强聚醚醚酮树脂为主要原料,采用注塑成型的方法制备了进气道及试片。通过对材料力学性能、微观形貌、进气道CT无损检测、内型面三坐标进行分析,结果表明:按照给定的工艺参数注塑成型,复合材料的抗拉强度达208 MPa、拉伸模量16.7 GPa、冲压式剪切强度100 MPa,碳纤维在树脂基体中分布均匀,进气道本体材料内部缺陷较少,进气道内外型面光滑、尺寸精度较高。With 20%short carbon fiber reinforced PEEK as the main raw materials,the air inlet and samples were prepared by the iniection-moulding method.The mechanical properties and microscopic morphology of samples,X-CT nondestructive testing and three coordinates testing of the air inlet were analyzed.Experimental results show that the tensile strength of PEEK composites reaches 208 MPa,tensile modulus reaches 16.7 GPa,punch-type shear strength reaches 100 MPa,the distribution of irregular fiber is even,the inner defects of inlet are low,both inner and outer contour of inlet are smooth,size precision is higher。

关 键 词：短碳纤维 聚醚醚酮 进气道 

分 类 号：V261.97[航空宇航科学与技术—航空宇航制造工程]