摘要
通过原位聚合法利用三聚氰胺-甲醛树脂对聚磷酸铵进行了微胶囊包覆,并将其用于环氧树脂(EP)的阻燃,采用FTIR和SEM对包覆前后的聚磷酸铵样品进行表征,并用热重分析仪对阻燃环氧树脂的热失重特性进行了测试。结果表明,成功实现了对聚磷酸铵的微胶囊包覆,并且由微胶囊化聚磷酸铵组成的膨胀型阻燃剂能有效地促进环氧树脂的分解成炭。通过Kissinger法和Ozawa法研究了阻燃剂对环氧树脂热分解动力学的影响。两种方法求出的热分解表观活化能相近,EP和阻燃EP的热分解表观活化能平均值为227.808、152.309kJ/mol。
Melamine formaldehyde resin microencapsulated am- monium polyphosphate（MPP） was prepared by in situ polymer- ization. The structure was characterized by FTIR and the SEM. The thermal degradation behaviors of EP blended MPP were in- vestigated by thermogravimetric analysis （TGA）. The results showed that the flame retarded EP was encouraged to form char by MPP. Furthermore, thermal degradation kinetic parameters of EP and flame retarded EP were investigated by using Kissin- ger equation and Ozawa equation. The average value of thermal degradation activation energy of EP and flame retarded EP were 227. 808,152. 309 kJ/mol, respectively.
出处
《消防科学与技术》
CAS
北大核心
2012年第12期1323-1325,共3页
Fire Science and Technology
关键词
聚磷酸铵
密胺树脂
微胶囊包覆
环氧树脂
热分解动力学
ammonium polyphosphate
melamine formaldehyde resin
rnicrocapsulation
epoxy resin
thermal degradation kinetics
