王佳倩,王书浩,沈红梅,周勇,高从堦

• 1:浙江工业大学 海洋学院，浙江 杭州 310014

摘要(Abstract)：

针对聚酰胺反渗透膜（RO）抗阳离子表面活性剂污染能力差的难点，提出改变反渗透膜表面荷电性方法，以聚乙烯亚胺（PEI）的乙醇溶液为电解质溶液，利用部分嵌入式静电自组装法对聚酰胺反渗透膜进行改性。采用场发射扫描电子显微镜（FE-SEM）、X射线光电子能谱（XPS）、接触角和固体表面Zeta电位对改性反渗透膜的结构和性能进行表征。结果表明，FE-SEM图像显示膜表面形态没有发生变化；XPS元素分峰和含量分析证明了PEI成功组装在反渗透膜上；接触角验证了改性后膜的亲水性增加，Zeta电位证实了改性后膜的荷负电性减小。改性后膜通量和脱盐性能均增加，抗污染性能得到显著改善，并具有耐酸碱稳定性（pH 2~11）。

关键词(KeyWords)： 污染;膜;脱盐;静电自组装;聚乙烯亚胺

Abstract:

Keywords:

基金项目(Foundation): 海岛水资源保障技术集成与示范（2016YFC0401508）。

作者(Author): 王佳倩,王书浩,沈红梅,周勇,高从堦

DOI: 10.3969/j.issn.1003-9015.2019.02.028

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