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首页> 外文期刊>RSC Advances >Improved filtration performance and antifouling properties of polyethersulfone ultrafiltration membranes by blending with carboxylic acid functionalized polysulfone
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Improved filtration performance and antifouling properties of polyethersulfone ultrafiltration membranes by blending with carboxylic acid functionalized polysulfone

机译：用羧酸官能化聚砜混合改善聚醚砜超滤膜的过滤性能和防污性能

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摘要

To improve the filtration performance and antifouling properties of ultrafiltration (UF) membranes, novel polymer blend UF membranes were fabricated in this study. Carboxylic acid functionalized polysulfone (PSFNA) was synthesized by modifying polysulfone (PSF) with 6-hydroxy-2-naphthoic acid (HNA). A series of polymer blend UF membranes were fabricated by adding different amounts of PSFNA into polyethersulfone (PES) to form a homogeneous casting solution. The influences of PSFNA on the morphology, thermal stability, hydrophilicity, filtration performance and antifouling properties of the blend membranes were investigated. The results indicated that by adding PSFNA into PES membranes, the finger-like pores in the membranes became larger, and the porosity and surface hydrophilicity of the membranes were improved. Compared with the pristine PES membrane, PES/PSFNA membranes demonstrated improved filtration performance, resulting in both increased water flux and higher bovine serum albumin (BSA) rejection. At a feed pressure of 0.1 MPa, the PES/PSFNA membrane with 4.0 wt% PSFNA had a pure water flux of 478 L m(-2) h(-1), which was 1.7 times higher compared with the PES membrane (287 L m(-2) h(-1)). In addition, the antifouling properties of PES membranes were also enhanced with the addition of PSFNA. The PES/PSFNA membranes with 3.0 wt% PSFNA had a total fouling ratio (TFR) of 49.6%, as compared with 62.5% for PES membranes.
机译：为了改善过滤性能和超滤的防污性能（UF）膜，新型聚合物共混物UF膜在本研究中制造。羧酸官能化的聚砜（PSFNA）中的溶液通过修改与6-羟基-2-萘甲酸（HNA）的聚砜（PSF）合成。一系列聚合物共混UF膜的通过加入不同量的PSFNA成聚醚砜（PES），形成均匀的铸膜液制成。 PSFNA的形貌，热稳定性，亲水性，过滤性能和防污共混膜的性质的影响进行了研究。结果表明，通过添加PSFNA为PES膜，指状膜中的孔变大，并且该膜的孔隙率和表面亲水性得到改善。与原始PES膜相比，PES / PSFNA膜显示出改善的过滤性能，从而产生水通量和较高的牛血清白蛋白（BSA）排斥都增加。在0.1MPa的进料压力，以4.0重量％的PSFNA PES / PSFNA膜具有478 L M（-2）H（-1），这是1.7倍与PES膜相比纯水通量（287大号米（-2）H（-1））。此外，PES膜的防污性能也得到了加强通过加入PSFNA的。用3.0重量％的PSFNA PES / PSFNA膜具有49.6％的总的结垢比（TFR），如为PES膜62.5％比较。

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  • 来源
    《RSC Advances》 |2018年第14期|共11页
  • 作者

    Wu Xing; Xie Zongli; Wang Huanting; Zhao Chen; Ng Derrick; Zhang Kaisong;

  • 作者单位

    Chinese Acad Sci Inst Urban Environm Key Lab Urban Pollutant Convers Xiamen 361021 Peoples R China;

    CSIRO Mfg Private Bag 10 Clayton Vic 3169 Australia;

    Monash Univ Dept Chem Engn Clayton Vic 3800 Australia;

    Monash Univ Dept Chem Engn Clayton Vic 3800 Australia;

    CSIRO Mfg Private Bag 10 Clayton Vic 3169 Australia;

    Chinese Acad Sci Inst Urban Environm Key Lab Urban Pollutant Convers Xiamen 361021 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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