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采用二烯丙基双酚A(DBA)对氰酸酯树脂(CE)进行改性,分别运用Flynn-Wall-Ozawa等转化率法和Kissinger极值法计算了改性树脂体系的固化动力学参数,并对固化树脂的力学性能和动态力学性能进行了研究.结果表明:DBA对氰酸酯树脂具有明显的催化作用和增韧效果,含5%DBA的改性树脂固化反应活化能最小(62.16kJ/mol),当DBA的加入量为10%时,树脂固化物的冲击强度达到纯氰酸酯树脂的2.07倍,含有DBA的CE树脂固化物的储能模量和玻璃化转变温度均有所降低.

参考文献

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