氯溴代烷基磷酸酯阻燃剂的合成与阻燃性研究

The Synthesis and Flame Retardancy of Bromochloro-Alkyl Phosphate Flame Retardant

本文以新戊二醇、溴素、三氯氧磷和环氧乙烷等为原料合成了氯溴代烷基磷酸酯阻燃剂— 3-溴 - 2 ,2 -二甲基丙基 - 2 -溴乙基 - 2 -氯乙基磷酸酯 (CBAP - 912 )。探索了温度、时间、原料配比、催化剂用量等反应条件对产率的影响。用化学方法、FTIR、TG等方法对该合成产物的性能和结构进行了表征。并研究了该阻燃剂在不饱和聚酯树脂和聚氯乙烯中的阻燃性 ,结果表明其具有良好的阻燃性能。

A bromo-chloro-alkyl phosphate, 3-bromo-2, 2-dimethylporpyl 2-bormo-ethyl 2-chloro-ethyl phosphate, was synthesized by using neopentyl glycol,bromine, phosphorus oxychloride and ethylene oxide as raw materials. It was investigated that yield and acid value are affected by temperature, time, molar ratio among raw materials, and a catalyst. The properties and structure of this flame retardant were characterized by means of chemical analysis, FTIR and TG. The flame retardant were characterized by means of chemical analysis, FTIR and TG. The flame retardancy of the product in unsaturated polyester (UP) and poly(vinyl chloride)(PVC) was also determined by limited oxygen Index(LOI). The result indicates the flame retardant shows good flame retardancy.