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采用Ozawa方法和Kissinger方法研究了环氧树脂和双环戊二烯双酚型氰酸酯树脂(DCPDCE)共聚体系的固化动力学,并计算了活化能、指前因子、不同温度下的反应速率常数和共聚物的总反应级数。研究结果表明,体系中加入环氧树脂后,提高了体系的反应活化能,明显降低了室温时的反应速率常数,而对固化温度(180℃)时的反应速率常数影响不大。不同环氧树脂含量的共聚体系固化反应级数均接近1级反应。
The curing kinetics of epoxy and dicyclopentadiene bisphenol-type cyanate ester resin (DCPDCE) copolymerization system were investigated by Ozawa method and Kissinger method. The activation energy, pre-exponential factor, reaction rate constants at different temperatures And the total reaction order of the copolymer. The results show that the addition of epoxy resin improves the reaction activation energy of the system and significantly reduces the reaction rate constant at room temperature, while has little effect on the reaction rate constant at the curing temperature (180 ℃). Copolymerization of different epoxy resin curing reaction series are close to level 1 reaction.