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,合成三[2-三(氯乙氧基)硅酰氧基乙基]异氰尿酸酯。考察了溶剂、反应温度与原料配比对产率的影响。得出最佳工艺条件为:n(四氯化硅)∶n(环氧乙烷)∶n(赛克)∶n(环氧乙烷)=3∶6∶1∶3.3;四氯化硅先与环氧乙烷在25℃反应1 h,再加入赛克在80℃反应8 h,最后通入环氧乙烷在40℃反应3 h;经纯化产率为94.3%。通过FTIR、1HNMR、TG-DTA分析及极限氧指数表征产物的结构及性能;应用实验表明,该产物含有硅、氮、氯3种阻燃元素,其协同阻燃效能高,适合用作聚氯乙烯等材料的阻燃剂。
Tri [ 2-tri （chloroethoxy） silicon acyloxy ethyl ] isocyanuric acid ester was synthesized by using tri （2-hydroxyethyl） isocyanurate （THEIC）, silicon tetrachloride and ethylene oxide as raw materials. The effects of solvent, reaction temperature and raw material ratio on product yield were 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 first reacted with ethylene oxide for 1 h at 25 ℃, and then THEIC was added at 80 ℃ to continue reacting for 8 h. Finally ethylene oxide was added at 40 ℃ to react for 3 h. The product was purified and the yield of product was 94. 3 %. The structure and properties of products were characterized by using FFIR, 1HNMR, TG-DTA analysis and limiting oxygen index techniques. The application experiments show that the product contained three antiflaming elements, silicon, nitrogen, and chlorine, and had excellent flame retardant synergism; it can be applied in manufacturing polyvinyl chloride materials.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2014年第5期556-559,602,共5页
Fine Chemicals
关键词
三(2-羟乙基)异氰尿酸酯
四氯化硅
环氧乙烷
硅酸酯
阻燃剂
功能材料
tfi （2-hydroxyethyl） isocyanurate
silicon tetrachloride
ethylene oxide
silicate ester
flameretardants
functional materials
