Abstract: Thermal behavior and flame retardance of acrylonitrile-butadiene-styrene (ABS) containing CuO microcapsules were determined by TG, DTG and CONE measurements. Activation energy for the degradation of samples was obtained using the Broido method. The results show that for the degradation of ABS containing CuO microcapsules, heat, smoke, CO and CO2 releases are decreased, which indicates that the CuO microcapsules have good flame retardance and smoke suppression effects on ABS. The activation energy of ABS containing CuO microcapsules for thermal decomposition is increased by 21 kJ/mol, which shows that the CuO microcapsules increase the stability of ABS and make its decomposition more difficult. Simultaneously, the char yield is increased by 27.2%, which shows that the CuO microcapsules catalyze carbonization of ABS and decrease flammable gas in the decomposition of ABS.

Key words: acrylonitrile-butadiene-styrene, decomposition, Cone Calorimeter, flame retardant, CuO microcapsules

摘要： 采用热重分析和锥形量热分析研究添加CuO微胶囊阻燃剂的丙烯腈-丁二烯-苯乙烯共聚物(Acrylonitrile- Butadiene-Styrene, ABS)的热解和阻燃性能，并用Broido方程计算ABS的动力学参数热解活化能的变化. 结果发现，添加CuO微胶囊的ABS热量释放、烟气、CO和CO2排放等参数降低，表明CuO微胶囊对ABS具有较好的阻燃、抑烟效果. 添加CuO微胶囊的ABS热解反应表观活化能升高21 kJ/mol，表明CuO微胶囊提高了ABS的热稳定性，使材料热解困难；同时其剩炭量提高27.2%，表明CuO微胶囊具有催化成炭、减少可燃性气体的作用.

关键词: 丙烯腈-丁二烯-苯乙烯共聚物, 热重分析, 锥形量热, 阻燃剂, CuO微胶囊