【摘要】 以三氯化磷与无水乙醇反应制得亚磷酸二乙酯 ,最佳反应条件为 :反应温度 2 5℃ ,C2 H5 OH∶ PCl3 摩尔比为 3.3∶ 1 ,进而以亚磷酸二乙酯与甲醛和二乙醇胺反应 ,合成了反应型有机磷阻燃剂 N,N 二羟乙基胺甲基磷酸二乙酯 ,最佳反应条件为 :反应温度 35℃ ,物料配比为 1∶ 1∶ 1 (摩尔比 )。制备了含此阻燃单体的不饱和聚酯和软泡聚氨酯。水平燃烧试验表明其阻燃效果明显 :阻燃不饱和聚酯达到 GB2 4 0 880 / ;阻燃聚氨酯达到 GB 2 4 0 880 / 4 0 mm。更多还原

【Abstract】 Diethyl phosphate was prepared by the reaction of phosphorus trichloride and anhydrous ethanol. The best reaction condition was reaction temperature 25℃,C 2H 5OH∶PCl 3 mole ratio 3.3∶1. The organic phosphate flame retardant dithyl N,N diethanolaminomethylphosphate was synthesized by diethyl phosphate, formaldehyde and diethanolamine. The best reaction condition was reaction temperature 35℃ and reacting substance mole ratio 1∶1∶1. Then samples of unsaturated polyester and flexible foamed polyurethane containing this flame retardant were made. The horizontal burning test showed good effects of the flame retardant. Flame\|proofing unsaturated polyester achieved GB 240880/Ⅰ, and flameproofing polyurethane achieved GB 240880/Ⅱ40mm.更多还原