Abstract：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.
Key words：aircraft structure；anti-corrosion；nano-composite coating；interlayer adhesion；accelerated simulation environment
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