飞机结构表面涂层体系改进研究

针对多型飞机表面涂层体系抗腐蚀性能差这一亟待解决的问题,采用制造状态、大修状态及纳米复合涂层对设计的典型飞机蒙皮对接结构模拟件进行涂装,并利用划格法对涂层体系的层间附着力进行表征。采用加速模拟环境试验的方法,对纳米复合涂层的防腐性能进行考核验证。试验结果表明,纳米复合涂层体系的层间附着力、防腐性能和耐老化性能明显优于制造状态、大修状态涂层体系,在飞机中应用纳米复合涂层可以显著改善结构的抗腐蚀品质。

Improvement of Aircraft Structure Surface Coating System

According to the urgent issue of surface coating system with worse anticorrosion properties in several types of aircraft,the simulative components of typical aircraft skin butt joint structures were designed and painted with manufacture coating system,overhaul coating system and nano-composite coating system.The interlayer adhesion of coating system was characterized using bend test method.The corrosion protection performance of nano-composite coating was comparatively assessed and validated using laboratory accelerated simulation environment test method.The experimental results showed that the interlayer adhesion,the corrosion protection and anti-ultraviolet ageing performance of nano-composite coating system are obviously better than that of manufacture and overhaul coating system.Nano-composite coating can distinctly improve the anti-corrosion quality of aircraft skin structures in corrosive medium.