CAJ | 학술논문

在一定比例的环氧树脂(EP)和线型酚醛树脂(PN)固化剂中加入丁酮溶解好的促进剂，制备了EP/PN体系。研究了不同促进剂对于EP/PN体系的固化反应动力学的影响。研究结果表明，2-乙基-4-甲基咪唑(2E4MZ)和三苯基膦(TPP)均可加速EP/PN体系的固化。使用外推法确定两体系的凝胶温度、固化温度和后处理温度等特征温度，发现2E4MZ促进的固化体系其凝胶温度较低，而固化温度和后处理温度略高。同时利用Kissinger方程和Ozawa方程计算出2E4MZ促进体系的平均表观活化能为74.92 kJ/mol，TPP促进体系的平均表观活化能为78.59 kJ/mol。
재일정비례적배양수지(EP)화선형분철수지(PN)고화제중가입정동용해호적촉진제，제비료EP/PN체계。연구료불동촉진제대우EP/PN체계적고화반응동역학적영향。연구결과표명，2-을기-4-갑기미서(2E4MZ)화삼분기련(TPP)균가가속EP/PN체계적고화。사용외추법학정량체계적응효온도、고화온도화후처리온도등특정온도，발현2E4MZ촉진적고화체계기응효온도교저，이고화온도화후처리온도략고。동시이용Kissinger방정화Ozawa방정계산출2E4MZ촉진체계적평균표관활화능위74.92 kJ/mol，TPP촉진체계적평균표관활화능위78.59 kJ/mol。
EP/PN blends were prepared based on a certain proportion of (EP) and phenol formaldehyde (PN) curing agent, by adding accelerator butanone dissolves well. The influence of different accelerant,2-ethyl-4-methyl imidazole(2E4MZ) and triphenyl phosphorous(TPP),on curing reaction kinetics of EP/PN system was investigated. The results show that both 2E4MZ and TPP can improve thereactivity of EP/PN system. The proper gelling temperature,curing temperature and treating temperature were calculated by extrapolating method. It was found that 2E4MZ promoted curing system had lower gel temperature, and had slightly higher curing temperature and treating temperature. Then,the curing reaction kinetic parameters,such as apparent activation energy were calculated by Kissinger and Ozawa equations. The average apparent activation energy of EP/PN blends with 2E4MZ accelerator is 74.92 kJ/mol,the average apparent activation energy of EP/PN blends with TPP accelerator is 78.59 kJ/mol.