飞机橡胶软油箱用石墨烯改性防护涂料的研制  

Development of Graphene Modified Protective Coating for Aircraft Soft Rubber Oil Tank

作　　者：薛瑞丽 宋欢欢 樊超 XUE Ruili;SONG Huanhuan;FAN Chao(COMAC Shanghai Aircraft Design&Research Institute,Shanghai 201210,China;North Paint&Coatings Industry Research and Design Institute Co.,Ltd,Lanzhou 730020,China)

机构地区：[1]中国商飞上海飞机设计研究院,上海201210 [2]中昊北方涂料工业研究设计院有限公司,甘肃兰州730020

出　　处：《橡胶工业》2021年第6期431-436,共6页China Rubber Industry

摘　　要：以聚氨酯弹性树脂为成膜物,制备飞机橡胶软油箱用石墨烯改性防护涂料,研究聚氨酯合成的影响因素以及石墨烯质量分数对涂层性能的影响。结果表明:合成聚氨酯的优化条件为端羟基聚酯的羟基含量[每摩尔端羟基聚酯中羟基质量(g)]为800,异氰酸酯基/羟基物质的量比为1.8/1;石墨烯在涂层中没有发生堆叠和团聚等现象,分散效果好;随着石墨烯质量分数的增大,涂层的拉断伸长率呈略微减小趋势,拉伸强度、耐疲劳性能、耐介质性能、耐老化性能提高,当石墨烯质量分数达到0.0075时,涂层的综合性能良好,涂料完全满足国家标准要求。The graphene modified protective coating for aircraft soft rubber oil tank was prepared using elastic polyurethane,and the influencing factors of polyurethane synthesis and the effect of graphene mass fraction on the coating properties were studied.The results showed that,the optimum conditions for the polyurethane synthesis were as follows:the hydroxyl content of the hydroxyl terminated polyester[the mass(g)of hydroxyl group per mole hydroxyl terminated polyester]was 800,and the isocyanate group/hydroxyl molar ratio was 1.8/1.It was found that the graphene dispersion in the coating was good without any agglomeration.With the increase of the graphene mass fraction,the elongation at break of the coating slightly decreased,but the tensile strength,fatigue resistance,chemical resistance and aging resistance were improved.When the mass fraction of the graphene reached 0.0075,the comprehensive properties of the coating was good,which fully met the requirements of national standards.

关 键 词：飞机 橡胶软油箱 石墨烯 聚氨酯 防护涂料 耐老化性能 耐介质性能 

分 类 号：TQ330.383[化学工程—橡胶工业] TQ323.8