聚磷酸铵-钙基蒙脱土纳米复合物阻燃聚丙烯  

Ammonium Polyphosphate-Calcium Montmorillonite Nanocompounds Flame Retarded Polypropylene

作　　者：仪德启[1] 叶春雪 杨荣杰[1] 

机构地区：[1]北京理工大学国家阻燃材料工程技术研究中心阻燃材料研究国家专业实验室火安全材料与技术教育部工程研究中心,北京100081

出　　处：《高分子材料科学与工程》2014年第2期51-56,共6页Polymer Materials Science & Engineering

摘　　要：基于自主合成的聚磷酸铵-钙基蒙脱土纳米复合物(APP-CaMMT),采用熔融共混法制备了纳米复合物APPCaMMT阻燃聚丙烯样品。通过热重分析、锥形量热仪分析、极限氧指数和垂直燃烧测试表征其阻燃性能。研究表明,纳米复合物APP-CaMMT相比APP与CaMMT的微米混合物,显著提高了对聚丙烯的阻燃效率。通过对UL94的模拟假设,实现了4种测试方法间的线性相关性分析。分析认为,对于不同类型的阻燃聚丙烯样品,只有通过多种测试手段综合分析,才能更准确判断其阻燃性能。Intumescent flame retarded polypropylene/ammonium polyphosphate-calcium montmorillonite （APP-CaMMT） composites were prepared by melt blending. Their thermal stability, flammability and flame retardancy were characterized by thermogrovimetric analysis, cone calorimetry, limited oxygen index （LOI） and UL94 test. APP-CaMMT nanocompounds exhibit enhanced flame retardancy in PP compared with commercial APP and micro mixture of APP and CaMMT. One number assumption of UL94 was established. And the correlation coefficients between TGA, Cone, LOI and UL94 were carried out. The results indicate that these bench-scale methods cannot be employed singly to estimate fire properties of materials.

关 键 词：纳米复合 聚磷酸铵 蒙脱土 聚丙烯 阻燃 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]