FX-17氟橡胶在湿热环境中的耐霉菌老化性能  

Aging resistance of FX-17 fluororubber against fungus degradation in damp-heat environment

作　　者：贾静焕 王进军[2] 杨志业[2] 刘明 骆晨 孙志华 詹中伟 张骐 JIA Jinghuan;WANG Jinjun;YANG Zhiye;LIU Ming;LUO Chen;SUN Zhihua;ZHAN Zhongwei;ZHANG Qi(AECC Key Laboratory of Advanced Corrosion and Protection of Aeronautical Materials,AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;AVIC Shenyang Aircraft Corporation,Shenyang 110034,China)

机构地区：[1]中国航发北京航空材料研究院中国航空发动机集团航空材料先进腐蚀与防护重点实验室,北京100095 [2]沈阳飞机工业(集团)有限公司,辽宁沈阳110034

出　　处：《电镀与涂饰》2025年第3期150-153,共4页Electroplating & Finishing

摘　　要：[目的]研究FX-17氟橡胶在霉菌环境中的老化行为,评估其作为航空密封材料在湿热环境下的长期适用性。[方法]依据GJB 150.10A–2009开展84 d霉菌试验,结合形貌观察、红外光谱分析及力学性能测试,研究FX-17氟橡胶的耐霉菌腐蚀性能。[结果]霉菌试验84d后,FX-17氟橡胶表面无霉斑和菌落生成,拉伸强度变化不大,但压缩永久变形率增大;主链结构未受破坏,但发生水解反应生成少量羟基。[结论]FX-17氟橡胶在霉菌环境中的性能变化主要由湿热效应引起,短期性能稳定,但长期使用需关注水解导致的性能退化。[Objective]The aging behavior of FX-17 fluororubber in a fungus environment was investigated to evaluate its long-term suitability as an aviation sealing material under damp-heat conditions.[Method]The fungus corrosion resistance of FX-17 fluororubber was studied by 84 days of fungus test combined with morphology observation,infrared spectroscopy,and mechanical property testing.[Result]After 84 days of fungus exposure,no mold spots or colonies were observed on surface of FX-17 fluororubber.The tensile strength didn’t change much,but the compression set increased.The main chain structure of FX-17 fluororubber remained intact,although slight hydrolysis occurred,generating a small number of hydroxyl groups.[Conclusion]The property changes of FX-17 fluororubber in fungus environment are mainly caused by humidity and heat.The property of FX-17 fluoroelastomer is stable in short term,but degradation due to hydrolysis is a concern in long-term use.

关 键 词：氟橡胶 霉菌 湿热环境 老化 力学性能 

分 类 号：TQ336.45[化学工程—橡胶工业]