极性有机分子可以和聚酰胺类纳滤膜表面形成众多氢键,从而削弱纳滤膜的荷电效应.论文选择几种典型极性分子,探讨氢键作用对纳滤过程荷电效应的影响.结果表明,在极性分子和聚酰胺类纳滤膜形成氢键的过程中,聚酰胺纳滤膜对电解质的截留率有所下降.这种影响随分子极性增强而更加明显;当温度升高时,氢键遭到破坏,截留率有所回升.
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