摘要
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(62.16 kJ/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。
Cyanate ester（CE） resin was modified by diallyl bisphenol A（DBA）. The curing kinetic parame- ters of the modified CE resin were calculated by Flynn-Wall-Ozawa iso-conversional method and Kissinger equation respectively. The mechanical and dynamic mechanical properties of the cured resin were studied. The results show that DBA can catalyze the curing reaction and toughen the cured resin effectively. The activation energy of the CE resin modified by 5% DBA is the minimum （62.16 kJ/mol）. The impact strength of the cured CE resin modified by 10% DBA is 2.07 times of that of pure CE resin. The storage modulus and glass transition temperature of the cured CE resin containing DBA both decrease.
出处
《绝缘材料》
CAS
北大核心
2012年第1期34-37,41,共5页
Insulating Materials
基金
江苏省博士后科研资助计划(1001015B)
江苏省基础研究计划资助项目(BK2011838)
江苏省"青蓝工程"资助
江苏省政府留学奖学金资助
关键词
氰酸酯树脂
二烯丙基双酚A
固化动力学
力学性能
cyanate ester resin
diallyl bisphenol A
curing kinetics
mechanical properties
