工艺与制造英文2024被引 3
自动铺纤原位固化高性能热塑性复合材料的层间粘结
Interlaminar bonding of high-performance thermoplastic composites during automated fiber placement in-situ consolidation
Dacheng Zhao, Weiping Liu, Jiping Chen, Guangquan Yue, Qinghua Song, Yang Yang · Commercial Aircraft Corporation of China (China)
摘要整理
层间性能是评估复合材料构件整体质量的重要指标。在自动铺纤（AFP）原位固化过程中，复合材料的层间性能受温度历史、聚合物降解与结晶、层间粘结和孔隙动力学等过程的影响。层间粘结是形成构件层间整体结构的主要过程。本研究调查了CF/PPS复合材料的层间粘结过程及通过AFP原位固化制备的层板的层间性能。通过理论模型分析了工艺参数对亲密接触、聚合物愈合和层间粘结的影响。以层板的层间剪切强度为指标，通过实验验证了模型结果。聚合物分子链扩散所需时间远短于亲密接触所需时间。对于所用的CF/PPS体系，亲密接触过程被确定为层间粘结的控制因素。此外，亲密接触程度的结果表明，理想矩形表面模型与实验值的相关性更好。研究结果为优化AFP原位固化工艺参数、提高热塑性复合材料层间性能提供了理论依据和实验验证。
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