中文摘要：

聚酰亚胺(PI)在空间飞行器中广泛用作多层热绝缘毯、太阳电池阵列的柔性基板以及电路系统的绝缘保护层。但普通型PI在低地球轨道(LEO)原子氧环境中易发生降解。因此,提高PI材料抗原子氧能力的研究近年来受到了广泛的重视。本文概述了这一研究领域内的最新进展情况,重点阐述了含苯基氧化膦(PPO)、含笼型低聚倍半硅氧烷(POSS)以及含锆基PI材料的结构与抗原子氧特性之间的关系。最后结合作者的研究工作对国内抗原子氧PI材料的研究与应用前景进行了展望。

英文摘要：

Polyimide(PI) has been extensively used on spacecraft as multi-layer thermal insulation blanket,flexible substrates for solar arrays and insulation layer for electrical system.However,the common PIs are easily degraded upon exposure to atomic oxygen in low earth orbit(LEO).Atomic oxygen-resistant PIs have then been paid much attention in recent years.In the present paper,the recent research and development of atomic oxygen-resistant PIs have been summarized.The effects of structures on the atomic oxygen-res...