摘要
采用硅钨酸为催化剂 ,在甲醇反应介质中由三聚氰胺与聚磷酸反应制得三聚氰胺聚磷酸盐 ,用元素分析、IR、XRD、TG与DSC等对其进行了分析和表征 ,并对其阻燃性能进行了评价。从热分析可知 ,当温度升至 684 8℃时 ,其热损失残余量为 43 5 2 % ;在 65 3 5℃时有 1明显吸热峰 ,吸热量为 62 9 1J/g。涂覆含三聚氰胺磷酸盐的防火涂料的 5层板在模拟实际火灾发生情况下 ,耐火极限为 1 6min ,涂料发泡倍数为5 0～ 60倍。
Melamine polyphosphate(MPOP) was synthesized from melamine and polyphosphoric acid in methanol using silicotungstic acid as catalyst and characterized by elemental analysis, IR, XRD, TG and DSC. Its fire retardant performance is evaluated. The results show that melamine polyphosphate prepared has higher purity and yield. The thermal analysis shows melamine polyphosphate undergoes a continuously rapid mass loss until 684.8 ℃. The residue is 43.52% of the original mass. A distinct heat absorption is found at 653.5 ℃ on DSC curve of melamine polyphosphate with heat absorption capacity of 629.1 J/g. A melamine polyphosphate coating in 1 mm thickness on five-ply board gives a 16 minutes fire-resistance limit as obtained in a big panel combustion test. The foaming capacity is 50～60.
出处
《应用化学》
CAS
CSCD
北大核心
2003年第11期1035-1038,共4页
Chinese Journal of Applied Chemistry
基金
国家重点基础研究专项经费资助 ( 973 ) ( 2 0 0 1CB40 960 7)
关键词
三聚氰胺聚磷酸盐
阻燃剂
合成
melamine polyphosphate,fire-retardant agent,preparation
