用差示扫描量热仪和RS600旋转流变仪分别研究了AG-70环氧树脂体系的升温固化反应情况和升温及恒温条件下的流变性能。实验结果表明,该环氧树脂体系的固化动力学方程符合两参数自催化模型,采用Malek最大概然法计算了模型中的动力学参数,获得了两个特征值下的动力学方程,将实验结果与理论值进行了对比。采用两种方式确定了凝胶温度点,并与用差示扫描量热（DSC）方法获取的凝胶点温度作比较,利用恒温温度与凝胶时间的函数关系计算出了凝胶模型,其数学表达式为：lntgel=-19.67＋8.57/T。
The curing reaction and rheological behavior of AG-70 epoxy resin system were measured using non-isothermal differential scanning calorimetry（DSC） and non-isothermal and isothermal RS600 Rotational Rheometer,respectively.From the experimental data,it is found that the cure kinetic equation of epoxy resin is correspond with two-parameter autocatalytic model.The kinetic parameters in model were calculated using the most probability method supported by Malek,and the kinetic equations were obtained from two characteristic values,then comparison between the experimental data and calculated ones was done.Gelation temperature point was determined by two different methods,the point was compared with the other one obtained from differential scanning calorimetry（DSC） measurement,gelation model was set up using the relationship between isothermal temperature and gelation time,and the mathematical description is ln tgel=-19.67＋8.57/T.
参考文献
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