摘要
太阳辐射是引起有机涂层老化的最主要原因,高温高湿和盐雾环境是涂层防护失效的重要影响因素。在南海岛礁地区高温、高湿、高盐雾和强太阳辐射的自然环境下,分别将两种相同基材(硬铝LY12-CZ和防锈铝LF6M)同镀层(H·DY)但不同底漆和面漆的4种航空电子设备常用的防护涂层体系开展自然暴露试验1年,对其进行环境适应性对比研究。结果显示,面漆TB04-62和海灰A04-61在岛礁环境下极易变色,但TB04-62面漆综合防护性能较海灰A04-61面漆好。
Solar radiation is the main cause of organic coating aging,and high temperature,high humidity,and salt spray are important influencing factors for coating protection failure.In the natural environment of high temperature,high humidity,high salt spray,and strong solar radiation in the islands and reefs of the South China Sea,four commonly used protective coating systems for aviation electronic equipment with two identical substrates(hard aluminum LY12-CZ and rust proof aluminum LF6M)and the same coating(H·DY)but different primers and topcoats are subjected to natural exposure tests for one year to compare their environmental adaptability.The results show that topcoat TB04-62 and sea ash A04-61 are prone to discoloration in reef environments,but the comprehensive protective performance of TB04-62 topcoat is better than that of sea ash A04-61 topcoat.
作者
闫杰
汪凯蔚
YAN Jie;WANG Kaiwei(CEPREI,Guangzhou 511370,China)
出处
《电子产品可靠性与环境试验》
2024年第S1期61-65,共5页
Electronic Product Reliability and Environmental Testing
关键词
涂层体系
南海岛礁
防护性能
coating system
South China Sea islands and reefs
protective performance
