阻燃POM的热降解动力学研究  

Study on Thermal Decomposition Kinetics of Flame-retarded POM

作　　者：孙双月[1] 武玉亮[1] 汪晓东[2] 

机构地区：[1]燕京理工学院化工与材料工程学院,河北三河065201 [2]北京化工大学材料科学与工程学院,北京100029

出　　处：《广州化工》2014年第7期71-73,92,共4页GuangZhou Chemical Industry

摘　　要：采用双螺杆挤出机制备了APP/MC/DPER/novolak阻燃POM材料,对材料进行了TGA测试,采用Flynn-WallOzawa方法、Starink方法两种动力学方法研究了阻燃POM的热降解动力学。由这两种方法计算得到的结果较为吻合,结果表明,阻燃剂的添加使POM材料的热降解活化能先下降后升高,说明阻燃剂先于POM分解并生成耐热性好的残炭。The thermal degradation kinetics of flame - retarded POM by APP/MC/DPER/novolak was studied by Flynn - Wall - Ozawa method and Starink method. The results from the two methods tallied with each other, both showed that the activation energies of flame - retarded POM were decreased and then increased. It indicated that the initial decomposition of flame -retardants preceded POM matrix, and the heat -resistant residual chars were formed due to the decomposition of flame - retardants.

关 键 词：聚甲醛 阻燃 热降解动力学 

分 类 号：TQ322.3[化学工程—合成树脂塑料工业]