基于2-甲基-2,5-二氧-1,2-氧磷杂环戊烷(OP)的环状酸酐结构和可以通过水解或醇解开环的特点,对OP/对苯二酚/环氧树脂预聚体的反应可行性、固化过程以及阻燃性能进行了研究;成功制备了含磷环氧树脂,固化12h后的环氧树脂具有良好的阻燃性能,极限氧指数(LOI,%)为25.7%,垂直燃烧测试达到UL-94V-0级别。
Based on the structure of 2-methy-2, 5-dioxo-1,2-oxaphospholane (OP) which are cyclic estolide structure, and the ring can be opened through hydrolysis or alcoholysis, studies the reaction feasibility, solidification process and flame retardancy of OP/hydroquinone/epoxy pre- formed polymer; successfully prepares the epoxy containing phosphorus, the epoxy has good flame retardancy after solidifing 12 h, the limited oxygen index is 25.7%, the calrnet burning test reaches UL 94 V-0 grade.