笼状有机硅季鏻盐阻燃抗静电剂的合成研究

Synthesis Study on Cage-shaped Organosilyl Quaternary Phosphonium as Antistatic Flame Retardant

摘要:

摘要：以甲基三氯硅烷和四羟甲基硫酸鏻为原料合成了笼状有机硅季鏻盐阻燃抗静电剂1-甲基-4-羟甲基-1-硅杂-4-磷杂-2,6,7-三氧杂双环[2,2,2]-辛烷季鏻硫酸盐。本文讨论了反应温度、反应时间、溶剂等对产率的影响，确定了最佳工艺条件，即为：甲基三氯硅烷与四羟甲基硫酸鏻的摩尔比为2:1，以二乙二醇二甲醚作溶剂，反应温度为120℃，反应时间为8h。采用FTIR、1H-NMR对结构进行了表征，同时利用差热、极限氧指数及表面电阻等技术研究了目标产物的性能。实验表明该化合物分解温度为478.5℃，有优良的阻燃抗静电性能。

Abstract:

Abstract:1-methyl-4-hydroxymethyl-1-silicone miscellaneous-4-phosphorus miscellaneous-2,6,7 -trioxabicyclo[2,2,2]-octane quaternary phosphonium sulfate,a kind of cage-shaped organosilyl quaternary phosphonium as flame retardant antistatic agent was synthesised by methyl trichlorosilane react with tetrakis hydroxymetyl phosphonium sulfuric. We discuss the impact of the reaction temperature、reaction time and resolvent on the yield, and we designed a new production route, which is the molar ratio of methyl trichlorosilane and tetrakis hydroxymetyl phosphonium sulfuric was 2:1, the reaction time was 8h at 120℃,and diethylene glycol dimethyl ether was used as solvent.The synthesized compound has been ascertained by FTIR、1H-NMR.DTA、Limiting oxygen index and surface resistance were used to characterize the performance of the final product. Further research of the product shows the decomposition temperature is 478.5℃, which has excellent flame retardant antistatic performance in the application tests.