摘要
为了优化环氧树脂/聚酰胺(EP/PA)体系的固化工艺,采用非等温DSC(差示扫描量热)法研究了环氧该体系的固化过程,并采用Kissinger方程、Crane方程和T-β外推法计算出该体系固化反应的动力学参数和固化温度。研究结果表明:当m(EP)∶m(PA)=2∶1时,EP/PA体系固化反应的表观活化能为53.67kJ/mol,反应级数为0.894。结合不同升温速率下的特征温度,对环氧树脂的固化条件进行了优化。
In order to optimize solidification process parameters of epoxy resin/polyamides （EP/PA） system, the curing process of EP/PA system was investigated by non-isothermal DSC （differential scanning calorimetry） method, and the kinetics parameters and curing temperatures of curing reaction of EP/PA system were calculated by Kissinger equation, Crane equation and T-β extrapolation. The research results showed that the apparent activation energy of curing reaction of EP/PA system was 53. 67 kJ/mol and reaction order was 0. 894,when mass fraction of m（EP） ： m（PA） was 2 ： 1. Furthermore, the curing condition of epoxy resin was optimized according to the characteristic temperature at different heating rates.
关键词
聚酰胺酸
环氧树脂
差示扫描量热法
固化工艺
动力学
polyamides, epoxy resin, differential scanning calorimetry （DSC） method, curing process, kinetics
