以酚醛树脂和乙酸、正丁酸和苯乙酸酯化的酚醛树脂固化邻甲酚环氧树脂．应用称重法、示差扫描量热法（DSC）和动态机械分析法（DMA）等手段研究吸水过程对环氧树脂的动态松弛行为的影响．结果表明，吸水过程对酚醛树脂和酯化酚醛树脂固化体系的动态松驰行为有显著的影响，这是由于两种体系中侧基对吸水过程及与水分子的相互作用不同所致． Phenolic resin and acetic acid, n-butyric acid and phenylacetate phenolic resin curing o-cresol epoxy resin. The influence of water absorption process on the dynamic relaxation behavior of epoxy resin was studied by means of weighing method, differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). The results show that the water absorption process has a significant effect on the dynamic relaxation behavior of phenolic resin and esterified phenolic resin, which is due to the difference of the water absorption between the pendant groups and the water molecules in the two systems.