针对飞行器隐身涂层技术领域的“多功能复合涂层老化和功能衰减及失效”这一重要瓶颈问题，拟重点开展以下深入系统的研究：1）复杂严苛工况条件下多功能高分子复合涂层的老化机理和功能失效规律。包括高分子粘合剂组分老化分子机理及对力学和电磁性能的影响规律、功能填料组分的氧化腐蚀机理和电磁功能特性衰减失效规律、上述两组份材料之间的相互作用机制及对体系力学和电磁性能的影响规律等。2）多功能高分子复合涂层室内模拟加速老化与实际服役老化的对应关系和关键老化因子确定，功能涂层寿命预测模型及失效判据研究。3）飞行器多功能复合涂层维护保养新技术和高效稳定新方法。通过上述研究，在亟待认识和解决的关键科学问题上取得突破，为有效解决飞行器多功能复合涂层老化导致的“隐身”功能缺陷和衰减失效等瓶颈问题、建立和完善高效优化的飞行器功能涂层维护保养技术提供科学依据和技术路径，为我国飞行器安全服役这一国家重大需求做出应有贡献。

One of big shortages in the stealth coating technology for aircraft is aging-induced function attenuation and failure of multifunctional coatings which are normally composed of polymer binder and functional fillers with a multilayer structure. The aim of this study is to understand and try to solve related scientific issues behind this problem. The whole project includes following three parts: (1) to study the aging mechanism and function failure behavior of coating systems under complex service condition, including the molecular mechanism behind aging behaviors of the polymer adhesive component and its effects on mechanical and electromagnetic performances, the mechanism of oxidation corrosion and the attenuation behaviors of the electromagnetic function of functional fillers, and the mechanism of interactions between polymer adhesive and functional filler as well as its effects on the mechanical and electromagnetic properties of the system; (2) to establish a correlation between the data obtained from the indoor experimental and that from the outdoor natural test of the coating system and to ascertain the key aging factors; develop the life-time prediction model and the failure criterion of the coating system; (3) to develop a new method for the maintenance of aircraft coating systems, and new coating stabilization techniques. All of this study will make a great contribution to effectively solving the aging-induced defects, attenuation and failure of aircraft coating systems and effectively help to improve the aircraft safety and to prolong the aircraft service lifetime.