新型膨胀型阻燃剂的合成  

Synthesis of a Novel Intumescent Flame Retardant

作　　者：罗长宏[1] 杨延钊[1] 韩健[1] 夏传波[1] 

机构地区：[1]山东大学化学与化工学院,济南250100

出　　处：《塑料助剂》2006年第2期23-25,共3页Plastics Additives

摘　　要：采用甲醇作为分散剂,以磷酸、季戊四醇和三聚氰胺为原料,在反应温度为80℃、反应时间为6h的条件下合成了季戊四醇磷酸酯三聚氰胺盐(PPM),对产物进行了元素分析、TG等分析和表征,并对其阻燃性能进行了测试。热失重分析显示产物分解温度约为300℃,且具有较好的膨胀度和成炭率,当PE∶PPM(质量比)为7∶3时,阻燃PE的阻燃性达UL-94V-0。实验表明,反应物的物质的量比对PPM的膨胀度及成炭率有较大影响,最佳物质的量比是n(磷酸)∶n(季戊四醇)∶n(三聚氰胺)为2.5∶1∶(1.3￣1.7)。Melamine salt of pentaerythritol phosphate （PPM） was synthesized from phosphoric acid, pentaerythritol and melamine using methanol as dispersing agent, the main reaction conditions are： using methanol as solvent, reaction temperature 80 ℃, reaction time 6 h, the reaction product are characterized by elemental analysis and TG. Its flame retardant performance was evaluated. The thermal analysis shows that the decomposition temperature is approximately 300 ℃,the product also has high intumescent degree and char yield, when the ratio of PE/PPM is equal to 70/30, the flame retarded effect could reaches the rate of UL 94 V-0. The experiment shows that the mole ratio of reactants affects the intumesscent degree and char yield of PPM considerablely, the optimum mole ratio for n-phosphoric acid：n-pentaerythriol：n-melamine is 2.5：1：（1.3-1.7）.

关 键 词：阻燃剂 季戊四醇磷酸酯三聚氰胺盐 膨胀型 合成 

分 类 号：TQ314.248[化学工程—高聚物工业] TQ138.11