对DRS系列反渗透膜/溶液体系在直流偏压下进行了介电测量,该体系显示了显著的介电弛豫行为,它是由于膜表面产生的浓度极化现象引起的.详细的研究结果表明,该膜在弱导电性介质中具有弱荷电膜的性质,这个结果支持了已有的报道.利用建立在界面极化理论基础上的介电模型对介电谱进行了解析,获得了特征浓度极化层构造的参数和体系的其它相参数.
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