CAJ | 학술논문

研究了以双酚A缩水甘油醚(EP)为基体,甲基六氢苯酐(MHHPA)为固化剂,四乙基溴化铵为促进剂的环氧树脂体系的反应特性.通过动态DSC曲线放热峰的位置和形状,发现四乙基溴化铵能有效地促进酸酐固化环氧的反应并且降低起始反应温度.同时,用DSC不同升温速率扫描该体系固化反应过程,利用Kiss-inger和Crane方程进行动力学分析,计算动力学参数.并且通过对体系转化率的测定,验证该树脂体系作为发电机浸渍使用时的工艺准确性和合理性.
연구료이쌍분A축수감유미(EP)위기체,갑기륙경분항(MHHPA)위고화제,사을기추화안위촉진제적배양수지체계적반응특성.통과동태DSC곡선방열봉적위치화형상,발현사을기추화안능유효지촉진산항고화배양적반응병차강저기시반응온도.동시,용DSC불동승온속솔소묘해체계고화반응과정,이용Kiss-inger화Crane방정진행동역학분석,계산동역학삼수.병차통과대체계전화솔적측정,험증해수지체계작위발전궤침지사용시적공예준학성화합이성.
@@@@This reaction characteristics of epoxy anhy-dride system in which the bisphenol A glycidyl ether (EP) acted as matrix, methyl six hydrogen benzene anhydride (MHHPA) as curing agent and tetraethyl ammonium bro-mide as accelerator, was studied. Through the exothermic peak position and shape of dynamic DSC curve, it was showed that the tetraethyl ammonium bromide was able to effectively promote the curing rate of the system and reduce the initial reaction temperature. The kinetics of the curing processes were analyzed by Kissinger and Crane equations, while the curing kinetics parameters of the curing system were calculated. The process accuracy and rationality of this resin system applying into the generator as its impregnation were verified through the conversion rate measurement