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分别采用Kissinger模型和Flnn–Wall–Ozawa(FWO)模型研究了E–51型环氧树脂/胺基酰亚胺潜伏性固化体系的非等温固化动力学,得到了该体系在这2种模型下的固化反应活化能。分析了不同动力学模型对该体系固化反应动力学研究的影响。结果表明,由2种模型得到的固化动力学参数基本相近。E–51/胺基酰亚胺体系的固化反应具有变活化能特征,固化反应起始阶段的活化能较高,约为103-112 kJ/mol;当固化度为0.9时,活化能约为63-82 kJ/mol。
The Kissinger model and Flnn-Wall-Ozawa (FWO) model are respectively used to study the non-isothermal curing kinetics of E-51 epoxy resin / aminoimide latent curing system. Under these two models The curing reaction activation energy. The effects of different kinetic models on the kinetics of the curing reaction were analyzed. The results show that the curing kinetics parameters obtained by the two models are basically similar. The curing reaction of E-51 / amine imide system has the characteristics of variable activation energy. The activation energy in the initial stage of curing reaction is high, about 103-112 kJ / mol. When the curing degree is 0.9, the activation energy is about 63-82 kJ / mol.