阻燃剂赛克三硅酸氯乙酯的合成

Synthesis of flame retardants THEIC three silicate chloride ethyl

摘要:

以三（2-羟乙基）异氰尿酸酯（赛克，THEIC）、四氯化硅与环氧乙烷为原料，合成赛克三硅酸氯乙酯。探讨了溶剂、反应温度与物质的量比对产率的影响。得出最佳工艺条件：四氯化硅、环氧乙烷、赛克和环氧乙烷物质的量比为3﹕6﹕1﹕3.3；四氯化硅先与环氧乙烷在25℃反应1h，再加入赛克在80℃反应8h，最后通入环氧乙烷在40℃反应3h；经纯化产率为94.3%。通过FTIR，1H-NMR，差热分析及极限氧指数等技术表征产物的结构及性能；应用实验表明该产物含有硅、氮、氯三种阻燃元素，其协同阻燃效能高，适合用作聚氯乙烯，聚氨酯，环氧树脂和不饱和树脂等材料的阻燃剂。

Abstract:

THEIC three silicate chloride ethyl was synthesized by using tri (2-hydroxyethyl) isocyanurate (THEIC),silicon tetrachloride and ethylene oxide as raw materials.The effects of solvent, reaction temperature and amount ratio of substance on product yield was discussed.The optimal conditions were selected as follows:n(silicon tetrachloride)﹕n(ethylene oxide)﹕n(THEIC)﹕n(ethylene oxide) was 3﹕6﹕1﹕3.3;Silicon tetrachloride was first reacted with ethylene oxide for 1h at 25℃,and then THEIC was added at 80℃ reaction for 8h,finally ethylene oxide was added at 40℃ reaction for 3h;The product was purified and the yield of product was 94.3%.The structure and properties of products was characterized by using FTIR,1H-NMR,DTA and limiting oxygen index techniques;The application experiments showed that the product contained silicon,nitrogen,chlorine three flame elements and had a good synergistic flame retardant synergism,it can be applied to polyvinyl chloride, polyurethane,epoxy resin and unsaturated resin polymer materials.