阻燃三聚氰胺硬泡聚醚多元醇的合成工艺探究  

Study on Synthesis Process of Melamine-Based Polyether Polyol for Flame Retardant Rigid Polyurethane Foam

作　　者：舒光军 余全伟 

机构地区：[1]四川金象赛瑞化工股份有限公司,四川眉山620010

出　　处：《聚氨酯工业》2017年第2期28-31,共4页Polyurethane Industry

摘　　要：采用三聚氰胺和环氧丙烷在有机溶剂中反应合成了阻燃三聚氰胺聚醚多元醇。考察了溶剂、温度、催化剂等因素对反应体系、反应时间和羟值的影响。结果表明,以N,N-二甲基乙酰胺为溶剂,三聚氰胺质量的5%的甲醇钾为催化剂,160℃的反应条件为佳。反应3 h后,经后处理得到澄清的橙黄色三聚氰胺聚醚多元醇,羟值为405 mg KOH/g。该多元醇用于聚氨酯硬泡发泡,氧指数(LOI)为25,同等条件下比甘油聚醚多元醇制得的硬泡阻燃效果好。Flame retardant melamine polyether polyol were prepared by the reaction of melamine with propyl-ene oxide in organic solvents. The effects of solvent, temperature,catalyst on the reaction system,reaction time and hydroxyl value were investigated. The experiments showed that the optimum reaction condition was that DMAC as solvent, CH3OK as catalyst of the quality of 5 % melamine, reaction temperature 160℃. After 3 hours reaction, clarified orange melamine polyether polyol with hydroxyl value of 405 mgKOH/g was obtained by the postprocessing. Limited oxygen index of the rigid polyuerthane foam based on the polyol was 25, which showed that its flame retardant effect was better than that of foam prepared with conventional polyether polyol under the same conditions.

关 键 词：三聚氰胺 聚醚多元醇 聚氨酯 硬质泡沫塑料 阻燃 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]