【摘要】 将一种液态双酚Ａ二缩水甘油醚环氧树脂用曼尼希改型胺进行等温固化，固化温度范围为 ５～ ６０℃采用差示扫描量热法（ＤＳＣ）测试不同固化条件下固化后样品的玻璃化转变温度和剩余反应焓．结 果表明，玻璃化转变温度Ｔｇ随固化时间的延长而上升，Ｔｇ与转化率之间存在着不依赖子固化温度的一 一对应关系．将Ｔｇ与时间的关系曲线漂移叠台形成固化反应的总曲线，用时温漂移技术获得了体系唯一 的表观活化能（５２６５ｋＪ／ｍｏｌ）．做出包含玻璃化曲线和ｉｓｏ－Ｔｇ曲线的时间－温度－转变（ＴＴＴ）等温 固化图．更多还原

【Abstract】 Isothermal curing of a liquid bisphenol A diglycidyl ether-based epoxy-resin-basin, using a Mannich base of modified amine curing agent, has been performed at four temperature between 5℃ and 60℃. The samples were isothermally cured for different times and glass transition temper- atures(Tg) and residual exotherms were determined by Differential Scanning Cabrimetry(DSC). The experimental results reveal that Tg increase with cure time and there is a corresponding relationship between Tg and conversion which is independent of cure temperature. The master curves were formed diagram was carried out to include the time to vitrification and iso-Tg curves.更多还原