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首页> 外文期刊>RSC Advances >Enhanced separation and antifouling properties of PVDF ultrafiltration membranes with surface covalent self-assembly of polyethylene glycol
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Enhanced separation and antifouling properties of PVDF ultrafiltration membranes with surface covalent self-assembly of polyethylene glycol

机译：具有聚乙二醇表面共价自组装的PVDF超滤膜的增强分离和防污性能

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摘要

Branched polyethylene glycol (PEG) was anchored onto a membrane surface by efficient covalent self-assembly to optimize the separation and antifouling properties of polyvinylidene fluoride (PVDF) ultrafiltration membranes based on its excellent hydrophilic and antifouling properties. The results showed that the surface self-assembly method could effectively improve the stability of PEG and the surface wetting ability of the PVDF membrane, and simultaneously enhanced the water flux and rejection of modified membranes. Meanwhile, the fouling results showed the anchored PEG segments on the separation interface contributed to improve the antifouling performance of the PVDF ultrafiltration membrane with significantly improved anti-adsorption capacity for bovine serum albumin (BSA) and expectant water flux recovery ratios for BSA and humic acid (HA), two typical pollutants. This paper provides a sample modification idea and demonstrated covalent self-assembly was an effective method for surface modification.
机译：通过有效的共价自组装将支链聚乙二醇（PEG）固定在膜表面上，以优化基于其优异的亲水性和防污性能的聚偏二氟乙烯（PVDF）超滤膜的分离和防污性能。结果表明，表面自组装方法可以有效地提高PEG的稳定性和PVDF膜的表面润湿能力，同时增强了改性膜的水通量和排斥反应。同时，污垢结果表明，锚定的分离界面段有助于改善PVDF超滤膜的防污性能，具有显着提高牛血清白蛋白（BSA）的抗吸附能力和BSA和腐殖酸的预期水通量回收比率（公顷），两个典型的污染物。本文提供了一种样品改性思想，并证明了共价自组装是表面改性的有效方法。

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  • 来源
    《RSC Advances》 |2015年第99期|共8页
  • 作者

    Zhao Xinzhen; Xuan Huixia; He Chunju;

  • 作者单位

    Donghua Univ Coll Mat Sci &

    Engn State Key Lab Modificat Chem Fibers &

    Polymer Mat Shanghai 201620 Peoples R China;

    Donghua Univ Coll Mat Sci &

    Engn State Key Lab Modificat Chem Fibers &

    Polymer Mat Shanghai 201620 Peoples R China;

    Donghua Univ Coll Mat Sci &

    Engn State Key Lab Modificat Chem Fibers &

    Polymer Mat Shanghai 201620 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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