The apparent values of the curing activation energy of UM resin, UP resin and VE resin are obtained by DAT method. The results are as follows: 45.5 kJ/mol, 56.7 kJ/mol and 75.8 kJ/mol respectively.

• 用DTA法测得UM树脂、UP树脂、VE树脂的表观固化反应活化能分别为45.；5kJ/mol、56