TY - JOUR TI - Thermal degradation process of polysulfone aramid fiber AU - Zhu Fang-Long AU - Feng Qian-Qian AU - Xin Qun AU - Zhou Yu JN - Thermal Science PY - 2014 VL - 18 IS - 5 SP - 1637 EP - 1641 PT - Article AB - Polysulfone aramid fiber is one kind of high temperature fibers. In the paper, thermal degradation behavior and kinetics of polysulfone aramid fiber were investigated by thermogravimetric analysis and differential thermogravimetric at different heating rates under nitrogen and air, respectively. The experimental results show that its initial degradation temperature is 375°C in nitrogen and 410°C in air at heating rate of 10 K/min. When temperature went to 800°C, the fiber loses all mass in air. The mass losses in the stage showed that degradation of polysulfone aramid occurs in two-step process as could be concluded by the presence of two distinct exothermic peaks in differential thermogravimetric curves.