工艺与制造英文2024
激光辅助自动铺纤成型CF/PEKK热塑性复合材料层板的重铺处理对力学性能和微观结构的影响
The Effect of Repass Treatment on the Mechanical Properties and Microstructure of CF/PEKK Thermoplastic Composite Laminates Manufactured Using Laser-Assisted Automated Fiber Placement
Xi Zhang, Xiaodong He, Hualian Li, Shenglai Wang · College of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
摘要整理
PEKK作为新兴热塑性复合材料，相比PEEK具有更优异的热稳定性。本研究采用激光辅助加热自动铺纤（AFP）工艺制备CF/PEKK层板，对比分析了重铺处理对层板力学性能和微观结构的影响。研究结果表明，经过单次重铺处理后，层板的拉伸强度提高了28.39%，层间剪切强度提高了11.9%，这主要源于两种加载条件下的受力分量差异。此外，重铺处理显著改善了层板的纤维/树脂界面质量和表面粗糙度。该研究为优化激光辅助AFP工艺参数和提高CF/PEKK热塑性复合材料层板的综合性能提供了重要参考。
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