氧化物固体溶液对PVC的阻燃性能影响  

The Metal Oxids Flame Retardancy of Solid Solution in PVC

作　　者：田春明[1] 王海[1] 李芝[1] 徐建忠[1] 

机构地区：[1]河北大学化学与环境科学学院,河北保定071002

出　　处：《山西大学学报（自然科学版）》2002年第4期326-330,共5页Journal of Shanxi University(Natural Science Edition)

摘　　要：讨论了固体溶液阻燃剂对 PVC材料的阻燃作用 ,对几种氧化物的混合物高温灼烧后对 PVC材料进行阻燃处理进行了分析 ,通过 DTA- TG、氧指数和机械性能等测试方法测定其性能。实验证明添加固体溶液阻燃剂可以使 PVC材料的氧指数和剩炭率比未添加固体溶液阻燃剂的 PVC材料提高 ,分解温度和热降解反应活化能降低。并且添加少量的固体溶液阻燃剂就能取得较好的阻燃效果 ,并不影响材料的机械性能。ZnO/MgO,ZnO/CaO,ZnO/CaO/MgO can form solid solution and appear flame retardatory propety by annealing at 773 K for 8 hours in the muffle furnace.Flexible PVC filled with SSFR was investigated by DTA TG,limiting oxygen index and mechanical properties.The results shown that the limiting oxygen index and the char yield are increased and the degradation temperature energy are decreased when solid solution flame retardant(SSFR) are added in to PVC.Moreover,the mechanical property was improved by filling the flame retardant in PVC.All the results shown that SSFR is effective and safe as flame retardant in flexible PVC.

关 键 词：氧化物 阻燃性能 固体溶液阻燃剂 热分析 热降解 PVC 聚氯乙烯 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业] TQ314.248