水处理用聚醚砜膜的亲水改性方法研究进展

Research progress in hydrophilic modification methods of polyethersulfone membranes for water treatment

聚醚砜(PES)膜是一类综合性能优良的高分子聚合物膜材料,在水处理方面有着广泛的应用。然而由于本身的疏水亲油性,使PES膜在水中容易受到污染,造成膜渗透性能下降、使用寿命缩短。为增强其抗污染性能,可以对其进行亲水改性。本文介绍了3种常见的亲水改性方法,分别为表面涂覆改性法、表面接枝改性法和共混改性法。其中,共混改性法因改性效果显著、简单方便等,在水处理方面的应用最具优势。希望此文为聚醚砜膜的进一步改性研究提供参考。

Polyethersulfone(PES)membranes are a class of high molecular polymer membrane materials with excellent comprehensive performance,which have wide applications in water treatment.However,due to its hydrophobicity and lipophilicity,PES membranes are prone to contamination in water,resulting in decreased membrane permeability and shortened service life.In order to enhance its anti-pollution performance,it can be hydrophilic modified.This article introduces three common hydrophilic modification methods,namely surface coating modification,surface grafting modification,and blending modification.Among them,the blending modification method has the most advantages in the application of water treatment due to its significant modification effect,simplicity,and convenience.It is hoped that this article will provide a reference for further modification research of polyethersulfone membranes.