依据改进的Scatchrd-Hildebrand模型、Flory-Huggins理论、线性黏弹性理论,建立一个新的传质模型.模型可以描述温度低于聚合物材料玻璃化温度时,气体小分子在聚合物膜中Fick及non-Fick扩散行为.应用此模型计算293.15 K、298.15 K及303.15 K下,乙醇气体在PPES(杂萘联苯聚醚砜),PPESK(杂萘联苯聚醚砜酮)膜中吸收/解吸曲线,并与实验结果相比较,最大相对偏差11.54%,平均偏差4.53%.
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