目的研究某海岛环境下6类典型机载设备表面涂层的耐老化性能。方法在某海岛环境开展6类典型机载设备表面涂层的户外和棚下暴露试验,试验时间为3年,分别通过测试外观、光泽度、色差研究其老化特点。结果户外试验相比棚下试验,所有试验样品均表现出更加明显的性能退化,在光泽度变化方面,C1和C6变化最小,在色差变化方面,C4变化最小。结论在机载设备选用涂层材料时,注重光泽度优先选用C1和C6,注重保持颜色优选C4。 Aim To study the anti-aging properties of six kinds of typical airborne equipment surface coatings under an island environment. Methods Six types of typical outdoor airborne equipment surface coatings were exposed to the sun and the canopy under an island environment for three years. The appearance, gloss and color difference were used to study the aging characteristics of the airborne equipment. Results Compared with the outdoor test, all test samples showed more obvious performance degradation. In terms of the change of gloss, C1 and C6 had the least change, and in the change of color difference, C4 changed the least. Conclusion In the selection of airborne equipment coating materials, pay attention to the degree of gloss preferred C1 and C6, focusing on maintaining the color preferred C4.