本文采用等温DSC研究不同用量纳米聚砜纤维对增韧4,4’-二氨基二苯甲烷四缩水甘油胺环氧树脂(TGDDM)/4,4’-二氨基二苯砜(DDS)体系固化动力学的影响。应用自催化模型表征固化动力学参数。试验结果表明,聚砜纳米纤维加入后的树脂固化动力学参数符合自催化反应模型理论。聚砜纳米纤维的加入,对纳米聚砜树脂混合物的反应速率,反应程度都有明显提高。 In this paper, isothermal DSC was used to study the effect of different dosage polysulfone fibers on the curing of toughened 4,4’-diaminodiphenylmethane tetraglycidyl amine epoxy resin (TGDDM) / 4,4’-diaminodiphenyl sulfone (DDS) system Dynamic effects. Autocatalytic model was used to characterize the curing kinetics. The experimental results show that the resin curing kinetics after the addition of polysulfone nanofibers conforms to the autocatalytic reaction model theory. Polysulfone nanofibers added, the reaction rate of polysulfone resin mixture, the reaction rate has increased significantly.