丙烯酸改性卤锑阻燃PP的阻燃性能  

Flammability of Flame Retarded PP Modified by Acrylic Acid

作　　者：麦堪成[1] 李日强[1] 

机构地区：[1]中山大学化学与化学工程学院材料科学研究所国家教育部聚合物复合材料及功能材料重点实验室,广东广州510275

出　　处：《塑料工业》2004年第7期10-12,共3页China Plastics Industry

基　　金：广东省自然科学基金团队研究和重点项目;教育部博士生点基金项目;广东省科技攻关项目;广州市科技攻关项目

摘　　要：用双螺杆挤出机制备了丙烯酸 (AA)改性三氧化二锑 /聚丙烯 (Sb2 O3 /PP)母料、十溴联苯醚 (DBDPO) /PP母料及其相应的卤锑阻燃PP。研究了Sb2 O3 、DBDPO和卤锑阻燃剂阻燃PP的氧指数 (LOI)。结果表明 ,Sb2 O3 用量对PP的LOI影响不大 ,而DBDPO使PP的LOI明显提高 ,但Sb2 O3 与DBDPO有协同作用 ,可使DBDPO用量降低。然而 ,当阻燃剂质量分数高于 5 % ,Sb2 O3 与DBDPO的协同作用降低。AA改性对PP的LOI有影响 ,取决于AA的用量和引发剂的用量。The Sb_2O_3/PP masterbatch modified by acrylic acid (AA) with or without DCP and decabromodiphenyl oxide (DBDPO)/PP masterbatch were prepared by using a twin-screw extruder.The effect of Sb_2O_3,modified Sb_2O_3,DBDPO and modified Sb_2O_3/DBDPO on the limiting oxygen index ( LOI ) of the flame retarded PP was investigated. The results indicated that the LOI significantly increased by the addition of DBDPO,but Sb_2O_3 had little influence on the LOI of PP. For the same LOI ,the content of DBDPO decreased by the synergistic action of Sb_2O_3 and DBDPO. However,the synergistic action of Sb_2O_3 and DBDPO decreased as the mass fraction of the flame retardant was higher that 5%. The effect of AA on the LOI of the flame retarded PP depended upon the content of AA and DCP.

关 键 词：阻燃聚丙烯 Sb2O3/PP母料 阻燃性能 氧指数 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]