一种UV固化聚硫代醚密封胶的制备与性能研究  

Study on preparation and properties of an UV-curable polythioether sealant

作　　者：章谏正[1] 郭瑞毅 杜禹[1] 吴松华[1] 

机构地区：[1]中国航空工业集团公司北京航空材料研究院,北京100095

出　　处：《中国胶粘剂》2016年第3期41-44,51,共5页China Adhesives

摘　　要：利用巯基-乙烯基"点击"反应制备了一种UV(紫外光)固化聚硫代醚密封胶。探讨了引发剂、填料等对UV固化聚硫代醚密封胶的固化深度、拉伸性能和粘接性能等影响。研究结果表明:与室温固化聚硫代醚密封胶相比,UV固化聚硫代醚密封胶具有固化速率较快、固化过程几乎不受环境影响等优势;UV固化聚硫代醚密封胶的力学性能良好,具有稳定的粘接性能,并且其耐高温性能比聚硫密封胶更优异。An UV（ultraviolet）-curable polythioether sealant was prepared by sulfydryl-vinyl click reaction.The influences of initiator and filler on some properties（such as curing depth,tensile properties and bondingproperties）of UV-curable polythioether sealant were discussed. The research results showed that the compare withroom temperature curable polythioether sealant,the UV-curable polythioether sealant had some advantages（suchas the faster curing speed,the curing process influenced almost not by environment）. The UV- curablepolythioether sealant had the good mechanical properties and stable bonding properties,and the high temperatureresistance of polythioether sealant was more excellent than that of polysulfide sealant.

关 键 词：聚硫代醚 密封胶 巯基-乙烯基 点击反应 紫外光固化 

分 类 号：TQ436.6[化学工程]