采用示差扫描量热法( DSC) 研究了以聚醚胺 / 酚醛胺为固化剂的环氧树脂体系的固化反应。 在25 ~ 230 ℃ 范围内, 以不同的升温速率( 5 ,10 ,15 ,20 ℃ / min ) 升温, 对该体系的固化动力学参数进行分析。 由Kisserger 方程求得该体系固化反应的表观活化能为 61 . 76 kJ / mol,频率因子 A 为 7 . 1 X10⁷s^-1;由 Crane 方程得出固化反应级数为 1 . 116 。 最终建立了固化动力学方程,即-dα/dt= k(1-α)^1.116,其中 k = 7 . 1 X10⁷exp (-7429 / T) 。

The curing behavior of polyether amine / phenolic amine with epoxy resin was studied by different scanning calorimetry. The kinetics parameters of this system were analyzed at heating rates 5 ,10 ,15 and 20 ℃ / min from 25 ℃ to 230 ℃ . According to Kissinger equation, the apparent activation energy was 61 . 76 kJ / mol and frequence factor was 7 . 1 X10⁷s^-1.According to Crane equation, the order of reaction was 1. 116, and the kinetics equation of curing reation was found to be dα/dt=k(1-α)^1.116, k = 7 . 1 X10⁷exp (-7429 / T) .