聚甲基丙烯酰亚胺泡沫夹层结构全生命周期的关键技术研究进展

聚甲基丙烯酰亚胺(Polymethylimide，PMI)泡沫夹层结构特有的性能优势使其广泛应用于航空航天领域。为推动PMI泡沫夹层结构的稳定化、系列化和高性能化，本文系统地综述了面向全生命周期的PMI泡沫夹层结构设计与制造技术的研究现状与发展趋势。首先，总结了PMI泡沫及其夹层结构的性能和应用现状，分析了PMI泡沫夹层结构的市场需求。然后，概述了面向全生命周期的PMI泡沫夹层结构关键技术现状，包括PMI泡沫研发、结构设计与分析、结构固化成型、维修及维护。最后，展望了PMI泡沫夹层结构的发展趋势，以期为该领域后续的研究工作提供参考。 

Progress on study of key technologies for polymethacrylimide foam core sandwich lifecycle

Polymethylimide (PMI) foam core sandwich has unique performance advantages, which leads to a wide application in aerospace structures. In order to promote the stabilization, serialization and high performance for PMI foam core sandwich, the present research situation and development trend of PMI foam core sandwich design and manufacturing technology for lifecycle were systematically reviewed. Firstly, the performance and application situation of PMI foam and its core sandwich were summarized, and the market demand of PMI foam core sandwich was analyzed. Then, the key technologies situations of PMI foam core sandwich lifecycle were curtly described, including the research of PMI foam, structure design and analysis, structure curing and forming, repair and maintenance, etc. Finally, the development trend of PMI foam core sandwich was prospected, so that to provide reference for further research.