研究了在恒温水浸吸湿实验中，水浸温度对复合材料吸湿参数的影响。通过对国产碳纤维／双马复合材料在60，70，80℃恒温水浸中进行的吸湿实验，得到了不同水浸温度下的吸湿曲线。由吸湿曲线分别求出了各水浸温度下的扩散系数和平衡吸湿率以及它们与水浸温度的关系。结合Arrhenius关系和Fick定律，得到了反映此复合材料在任意水浸温度下吸湿行为的吸湿模型。该吸湿模型能较为准确地预测此复合材料在95℃恒温水浸中任意时刻的吸湿量及预估达到特定吸湿量所需要的时间。
The influence of water temperature on composite moisture absorption parameters was inves‐tigated in temperature‐controlled water bath .Experiments of carbon fiber/bismaleimide resin compos‐ites immersed in water of 60℃ ,70℃and 80℃ were developed respectively .According to the moisture content‐time curves obtained from the experimental results ,the diffusion coefficient and the balanced moisture content of the composites immersed in different water temperature could be calculated . What’s more ,the effect of water temperature on the diffusion coefficient and the balanced moisture content were discussed too .According to the Arrhenius equation and the law of Fick ,a moisture ab‐sorption model was proposed to simulate the hygroscopic behaviour of the composite laminates im‐mersed in different water temperature which can predict the absorption rate of water of the composites immersed in distilled water of 95℃ at any time precisely and can calculate how long it will take to reach the specific absorption rate .
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