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首页> 外文期刊>Journal of Applied Polymer Science >High flux nanofibrous composite microfiltration membrane prepared by melt blending extrusion: Application in liquid filtration
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High flux nanofibrous composite microfiltration membrane prepared by melt blending extrusion: Application in liquid filtration

机译：熔融共混挤出制备高通量纳米纤维复合微滤膜：在液体过滤中的应用

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摘要

High flux PP/EVOH nanofibrous composite microfiltration membrane (P/E-NCMM) based on polypropylene (PP) (575 nm) and polyethylene-co-polyvinyl alcohol (EVOH) nanofibers (248 nm) with low operation pressure for liquid filtration was fabricated by melt blending extrusion. PP nanofibers as the scaffold played a supporting role, and EVOH nanofibers filled in the PP nanofibers network structure narrowed the pore size and improved the wettability. Taking advantages of PP and EVOH nanofibers, the nanofibrous composite membrane created fascinating features for liquid filtration. The experimental results showed that the P/E-NCMM had high average pure water flux at low operating pressure. The P/E-NCMM with 30 wt % PP nanofibers showed high water flux [450.9 L/(m(2)h)] even at very low feeding pressure (0.05 MPa) with above 95% retention for TiO2 suspension. The results indicated that the P/E-NCMM prepared by this method had great potential for the application in liquid filtration. (c) 2016 Wiley Periodicals, Inc.
机译：制备了基于聚丙烯（PP）（575 nm）和聚乙烯-共-聚乙烯醇（EVOH）纳米纤维（248 nm）的高通量PP / EVOH纳米纤维复合微滤膜（P / E-NCMM），具有较低的工作压力，可进行液体过滤通过熔融共混挤出。 PP纳米纤维作为支架发挥了支撑作用，填充在PP纳米纤维网络结构中的EVOH纳米纤维缩小了孔径并提高了润湿性。利用PP和EVOH纳米纤维的优势，纳米纤维复合膜为液体过滤创造了迷人的功能。实验结果表明，P / E-NCMM在低工作压力下具有较高的平均纯水通量。具有30 wt％PP纳米纤维的P / E-NCMM甚至在非常低的进料压力（0.05 MPa）下仍具有较高的水通量[450.9 L /（m（2）h）]，并且TiO2悬浮液的保留率超过95％。结果表明，该方法制备的P / E-NCMM在液体过滤中具有广阔的应用前景。 （c）2016年威利期刊有限公司

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