耐高温有机/无机杂化聚酰亚胺基体树脂

Organic/inorganic hybrid polyimide matrix resins with high temperature resistance

热固性聚酰亚胺树脂基复合材料已在航空航天领域得到了广泛的应用,然而随着航空航天技术的发展,传统有机聚酰亚胺基体树脂的耐温等级逐渐不足以达到飞行器的设计和应用需求,发展新型耐高温有机/无机杂化聚酰亚胺树脂成为国内外研究重点。本文总结了近年来国内外有机/无机杂化聚酰亚胺基体树脂的发展现状,重点从合成方法、结构设计与性能调控、固化过程和高温降解行为等方面对含笼状倍半硅氧烷聚酰亚胺、含碳硼烷聚酰亚胺和含硅氧烷聚酰亚胺的特点和耐热机制进行了介绍,并对有机/无机杂化聚酰亚胺树脂未来发展面临的挑战与机遇进行了讨论分析。

Thermosetting polyimide resin matrix composites have been widely used in aerospace industry,but the heat resistance of traditional organic polyimide matrix resins is gradually insufficient to satisfy the design and application requirement of the aircrafts,with the development of aerospace technology.Therefore,novel organic/inorganic hybrid polyimides resistant to higher temperature have become the focus of research.In this paper,the recent progress of organic/inorganic hybrid polyimide matrix resins was summarized.The synthetic pathway,structure design,performance control,curing process and degradation behavior of polyhedral oligomeric silsesquioxanecontaining polyimide,carborane-containing polyimide and siloxane-containing polyimide were reviewed,providing a detailed description of the characteristics and thermo-resistant mechanism of the organic/inorganic hybrid polyimide resins.The challenges and opportunities for the future development of organic/inorganic hybrid polyimide resins were also discussed and analyzed.