环氧丁羟增韧双酚A环氧树脂固化反应动力学研究

Study on curing reaction kinetics of epoxidized hydroxyl-terminated polybutadiene toughened bisphenol A type epoxy resin

采用动态差示扫描量热法(DSC)确定环氧丁羟(EHTPB)增韧双酚A环氧树脂固化体系的固化温度,利用Kissinger方程和Crane方程对固化反应动力学进行分析,确定了固化体系的动力学参数:表观活化能ΔE=102.40 k J/mol,指前因子A=1.90×1011,反应级数n=0.93。

The curing temperature of epoxidized hydroxyl-terminated polybutadiene（EHTPB） toughened bisphenol A type epoxy resin curing system was confirmed by using dynamic differential scanning calorimetry（DSC）. The curing reaction kinetics was analyzed by using the Kissinger equation and the Crane equation. The confirmed kinetic parameters of the curing system include： the apparent activation energy ΔE = 102.40 k J/mol, the pre-exponential factor A=1.90×1011, the reaction order n=0.93.