低熔点聚酰胺对聚丙烯阻燃性和力学性能的影响  

Influence of Polyamide with Low Melting Point on the Flame Retardancy and Mechanical Properties of Polypropylene

作　　者：王英[1] 王凯隆 何波兵[2] 陈弦[2] 

机构地区：[1]甘肃中医药大学定西校区,甘肃定西743000 [2]四川大学化学学院,四川成都610064

出　　处：《塑料工业》2016年第5期112-116,121,共6页China Plastics Industry

摘　　要：为了增加阻燃材料的成炭性,提高阻燃性,将两种新型低熔点聚酰胺(ES-6和M-170)作为协效成炭剂加入聚丙烯阻燃体系中。结果表明,与尼龙6(PA6)相比,ES-6和M-170在聚丙烯基体中具有良好的分散性和相容性,复合材料具有优良的力学性能。同时,ES-6和M-170都具有较低的熔融温度,在与聚丙烯混合的过程中可以在较低的温度下加工,可以有效避免阻燃剂的分解。另外,利用ES-6或者尼龙6部分取代双季戊四醇(DPER),可以提高极限氧指数,改进阻燃剂在聚丙烯中的阻燃性能。In order to improve the flame retardance of polypropylene （PP） materials, two novelcopolyamides ES-6 and M-170 were served as synergistic charring agent for the flame-retarded PP system withammonium polyphosphate （APP） and dipentaerythritol （DPER）. The results show that, compared withPA6, ES-6 and M-170 have better dispersion and compatibility in the PP matrix and enhanced mechanicalproperties. Meanwhile, ES-6 and M-170 as low melting point polyamides could decrease processingtemperature and inhibit side reaction effectively, especially the degradation of APP. In addition, thesynergistic effect between ES-6 and DPER was also investigated. The results show that the synergistic systemcontaining ES-6 has better flame retardancy and mechanical performance than the system only using DPER orthe system containing PA6.

关 键 词：聚丙烯 阻燃 聚磷酸铵 力学性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]