PP/纳米SiO_2复合材料的阻燃性能研究  

Study on Flame Retardancy of Polypropylene/Nano SiO_2 Composites

作　　者：于宝刚[1] 卢林刚[1] 高维英[1] 杨守生[2] 

机构地区：[1]中国人民武装警察部队学院科研部,河北廊坊065000 [2]中国人民武装警察部队学院消防工程系,河北廊坊065000

出　　处：《中国塑料》2009年第10期27-30,共4页China Plastics

摘　　要：将磷系阻燃剂1,3,5-三(5,5-二甲基-1,3-二氧杂环己内磷酸基)苯(FR)、聚磷酸铵(APP)、纳米SiO2复配,制备聚丙烯(PP)纳米复合阻燃材料。采用氧指数测定仪、水平垂直燃烧测定仪、热重分析仪、锥形量热仪对PP纳米复合阻燃材料的阻燃性能进行了研究。结果表明,FR/APP/SiO2的加入提高了PP的氧指数、水平燃烧等级、热稳定性和残炭率,降低了PP的热释放速率。当阻燃剂FR/APP/SiO2的总体含量为25%,FR/APP/SiO2配比为15/7/3的情况下,PP纳米复合阻燃材料的氧指数为29.4%,水平燃烧等级达到FH-1。An intumescent flame-retardant was prepared by 3-dioxacyclophosphorinane phosphonate） benzene （FR）, compounding 1,3,5-tri（5,5-dimethyl-I, ammonium polyphosphate （APP）, and nano-silica, and used in polypropylene（PP）. Testing through limiting oxygen index, horizontal burning test, thermo gravimetric analysis （TG）, and cone calorimeter showed that the compound flame-retardant increased the limiting oxygen index, horizontal burning rate, thermal stability, and residual char, and decreased the heat release rate. When the weight ratios of FR/APP/SiO2 were 15/7/3 and its content was 25 %, limiting oxygen index of 29.4 % and horizontal burning rate of FH-1 were obtained.

关 键 词：聚丙烯 膨胀型阻燃剂 纳米二氧化硅 阻燃性能 复合材料 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]