水滑石部分替代三氧化二锑阻燃聚丙烯  

Partial Replacement of Sb_2O_3 with LDHs on the Flame-Retardant PP

作　　者：郑秀婷[1] 吴大鸣[1] 刘颖[1] 侯立军[1] 

机构地区：[1]北京化工大学塑料机械及塑料工程研究所,北京100029

出　　处：《塑料》2011年第2期16-18,共3页Plastics

基　　金：中央高校基本科研业务费专项资金(QN0910)

摘　　要：用水滑石(LDHs)替代传统的三氧化二锑(Sb2O3)与十溴二苯乙烷(DBDPE)复配对聚丙烯(PP)进行阻燃性研究,研究LDHs改性前后在PP中的分散性、LDHs替代Sb2O3后对材料阻燃性能、抑烟性能和力学性能的影响。结果表明:用硅烷偶联剂改性后的LDHs在PP中具有较好的纳米级分散,改性LDHs替代三氧化二锑对PP具有较好的阻燃抑烟性能,氧指数能达到28%,垂直燃烧达到V-0级,烟密度等级下降,对材料的拉伸强度影响不大。It was studied that replacement of antimony trioxide （Sb2O3 ） in the composite flame retardant Decabromodiphenylethane （DBDPE）/Sb2O3 with layered double hydroxides （LDHs） on the flame-retardant polypropylene （PP）. After the surface modification,the dispersibility of LDHs and the effects of flame retardant, smoke suppressing and mechanical properties were studied. The main results showed that after modification with silane coupling agent,a better nano- sized LDHs was prepared,and replaced Sb2O3 with modified LDHs on PP , the grade of vertical flame was up to V-0, Oxygen index was up to 28 % ,and the effect of tensile strength was little.

关 键 词：水滑石 三氧化二锑 聚丙烯 阻燃 抑烟 力学性能 

分 类 号：TQ314.248[化学工程—高聚物工业] TQ325.14