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首页> 外文期刊>RSC Advances >PVDF/PVDF-g-PACMO blend hollow fiber membranes for hemodialysis: preparation, characterization, and performance
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PVDF/PVDF-g-PACMO blend hollow fiber membranes for hemodialysis: preparation, characterization, and performance

机译：PVDF / PVDF-G-PACMO混合中空纤维膜用于血液透析：制备，表征和性能

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摘要

A novel approach to improve the biocompatibility of poly(vinylidene fluoride) (PVDF) hollow fiber membrane for hemodialysis is provided. A copolymer (PVDF-g-PACMO) containing the main chain of PVDF and amphiphilic side chains of polyacryloylmorpholine (PACMO) was blended with PVDF powder by a certain proportion and then was cast into a hollow fiber membrane via non-solvent induced phase separation (NIPS). The structure and performance of prepared membranes were characterized by X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), mechanical testing, water contact angle measurement, multi-cycle filtration experiments, blood compatibility testing and dialysis simulation experiment. A higher weight ratio of PVDF-g-PACMO endows the blend membrane with larger membrane surface micro pores and a better hydrophilicity. Moreover, a high pure water flux and an improved blood compatibility with good dialysis property were obtained by enhancing weight ratio of PVDF-g-PACMO. Especially, when the weight ratio of PVDF-g-PACMO was 1/1 (i.e., 50/50), the water flux reached 200 L m(-2) h(-1) and the rejection ratio of BSA was more than 90%, where the urea and lysozyme clearance rate was 80% and 62%, respectively. All the results indicate that PVDF/PVDF-g-PACMO blend hollow fiber membrane is promising to be applied in the field of hemodialysis.
机译：一种新颖的方法，以提高聚（偏二氟乙烯）（PVDF）中空纤维膜的生物相容性用于提供血液透析。含有PVDF和聚丙烯酰基（PACMO）的两亲性侧链的主链共聚物（PVDF-G-PACMO）通过一定比例与PVDF粉末混合，然后通过非溶剂致相分离浇铸到中空纤维膜（ NIPS）。的结构和制备的膜的性能进行了表征通过X射线光电子能谱（XPS），场发射扫描电子显微镜（FE-SEM），机械测试，水接触角测定，多循环过滤实验，血液相容性试验和透析模拟实验。 PVDF-G-PACMO的较高重量比赋予共混物膜具有较大的膜表面微细孔和更好的亲水性。此外，通过增强PVDF-G-PACMO的重量比而得到的高纯水通量和良好的透析性能的改进的血液相容性。特别是，当PVDF-G-PACMO的重量比为1/1（即，50/50），水通量达到了200 L M（-2）H（-1）和BSA的抑制比大于90 ％，其中所述尿素和溶菌酶的清除率分别为80％和62％。所有结果表明，PVDF / PVDF-G-PACMO共混中空纤维膜是有前途在血液透析领域得到应用。

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  • 来源
    《RSC Advances》 |2017年第43期|共8页
  • 作者

    An Zihan; Xu Rui; Dai Fengying; Xue Gaojian; He Xiaoling; Zhao Yiping; Chen Li;

  • 作者单位

    Tianjin Polytech Univ State Key Lab Separat Membranes &

    Membrane Proc Sch Mat Sci &

    Engn Tianjin 300387 Peoples R China;

    Tianjin Polytech Univ State Key Lab Separat Membranes &

    Membrane Proc Sch Mat Sci &

    Engn Tianjin 300387 Peoples R China;

    Tianjin Polytech Univ State Key Lab Separat Membranes &

    Membrane Proc Sch Mat Sci &

    Engn Tianjin 300387 Peoples R China;

    Tianjin Polytech Univ State Key Lab Separat Membranes &

    Membrane Proc Sch Mat Sci &

    Engn Tianjin 300387 Peoples R China;

    Tianjin Polytech Univ Sch Environm &

    Chem Engn Tianjin 300387 Peoples R China;

    Tianjin Polytech Univ State Key Lab Separat Membranes &

    Membrane Proc Sch Mat Sci &

    Engn Tianjin 300387 Peoples R China;

    Tianjin Polytech Univ State Key Lab Separat Membranes &

    Membrane Proc Sch Mat Sci &

    Engn Tianjin 300387 Peoples R China;

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