为了预测在固化度、温度和固化放热共同作用下,树脂体系的黏度随时间的变化,提出了一种确定反应性树脂体系黏度随时间变化关系的新方法.该方法从等温黏度一时间曲线和同化度一时间曲线出发,分别得到黏度一固化度关系和黏度-温度关系,从而将影响反应性流体黏度变化的两个主要因素温度和固化程度分离开来.基于反应性树脂体系的局部绝热假设,将反应性树脂体系的固化放热引入到黏度变化关系中,得到反应性树脂体系黏度在固化度、温度和固化放热共同作用下的黏度-时间关系.黏度预测值与用旋转黏度计测量值的黏度变化趋势具有高度的一致性,可以应用此方法实现对实际环境中考虑固化反应热效应的反应性树脂体系黏度的预测.
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