对分别加入4种稀释剂的双酚A环氧树脂和酚醛环氧树脂的电子束辐射固化性能进行了研究.分析了稀释剂种类及含量对环氧树脂体系辐射产物的固化度、固化均匀性、固化区域大小及其动态力学性能的影响规律.结果表明:电子束固化环氧树脂体系中加入稀释剂后,辐射产物的固化度、玻璃化转变温度及储能模量有所下降,但固化均匀性得到提高;加入稀释剂的环氧树脂电子束固化区域的厚度均小于未加稀释剂树脂,而底面直径却大于未加稀释剂树脂;随着树脂中实际稀释剂含量的增加,电子束固化环氧树脂固化度逐渐降低,固化层厚度减小,固化区域的底面直径先增加后减小.
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