笼状磷酸酯微胶囊/聚磷酸铵阻燃聚丙烯  

Flame retardancy of microcapsulated caged-phosphate with ammonium polyphosphate in polypropylene

作　　者：房晓敏[1,2] 徐元清[1] 丁涛[1] 赵毅[2] 欧育湘[2] 

机构地区：[1]河南大学化学化工学院精细化学与工程研究所,河南省开封市475004 [2]北京理工大学材料科学与工程学院阻燃材料国家专业实验室,北京市100081

出　　处：《合成树脂及塑料》2013年第2期17-21,共5页China Synthetic Resin and Plastics

摘　　要：将笼状磷酸酯微胶囊(ET)与聚磷酸铵(APP)复配用于阻燃聚丙烯(PP)。采用氧指数和UL 94评价了阻燃PP的阻燃性能,采用热重分析、扫描电子显微镜照片、傅里叶变换红外光谱及X射线电子能谱研究了阻燃剂的协同效应和阻燃机理。结果表明:ET与APP有较好的复配协同效应,ET/APP的阻燃性能随m(ET)/m(APP)的不同而变化。当m(ET)/m(APP)为1∶2时,阻燃效果最好。w(ET/APP)为30%时,氧指数达29.7%,且达到UL 94 V-0级。A novel microcapsulated caged-phosphate （ET） was compounded with ammonium polyphosphate （APP） to flame retard polypropylene （PP）. The flame retardancy of the flame retardant PP were evaluated by limiting oxygen index （LOI） and UL 94 test, and the synergistic effect and flame retardant mechanism were studied by thermogravimetrie （TG） analysis, scanning electron microscopy （SEM）, Fourier transmission infrared spectroscopy （FTIR） and X-ray photoelectron spectroscopy （XPS）. The results indicate that there is good synergistic effect between ET and APP. Moreover, the flame retardancy of ET/APP varies with their mass ratio. And the optimal flame retardancy can be obtained when the mass ratio of ET to APP is 1 ： 2. When the mass content of ET/APP is 30%, LOI of the flame retardant PP reaches 29.7%, and UL 94 V-0 rating can be achieved.

关 键 词：聚丙烯 阻燃 膨胀型阻燃剂 微胶囊 聚磷酸铵 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]