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首页> 外文期刊>Polymer Composites >Fabrication and Performance of a Polyethersulfone Nanofiltration Membrane Impregnated With a Mesoporous Silica-Poly(1-vinylpyrrolidone) Nanocomposite
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Fabrication and Performance of a Polyethersulfone Nanofiltration Membrane Impregnated With a Mesoporous Silica-Poly(1-vinylpyrrolidone) Nanocomposite

机译：聚醚砜纳温膜用介孔二氧化硅 - 聚（1-乙烯基吡咯烷酮）纳米复合材料浸渍的聚醚砜纳滤膜的制造和性能

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Fouling is a serious problem in the membrane formation process. Adding hydrophilic polymers or inorganic particles into the membrane is an effective way for improving the antifouling performance. However, most of the water-soluble polymeric additives leach out during the phase inversion process, and the inorganic particles are prone to agglomerate in the membrane, which decreases the antifouling property of the membrane. In this study, poly(1-vinylpyrrolidone) (PVP) was grafted onto mesoporous silica (MS) nanoparticle surface, and polyethersulfone (PES)/MS-PVP nanocomposite membranes were fabricated by the phase inversion method. MS-PVP dispersed well on the membrane surface, and the hydrophilicity of the PES/MS-PVP membranes increased with increasing content of MS-PVP. PES/MS-PVP membranes exhibited higher water flux than that of the bare PES membrane without any loss in NaCl rejection, and water flux of 25 L/m(2)h could be achieved by the membrane containing 3% of MS-PVP, which is almost 1.5 times as high as that of bare PES membrane at 0.6 MPa. The protein adsorption onto the membrane surface declined significantly from 49 to 25 mg/cm(2) when the MS-PVP loading increased from 0% to 3%. (C) 2015 Society of Plastics Engineers
机译：污垢是膜形成过程中的一个严重问题。将亲水聚合物或无机颗粒添加到膜中是改善防污性能的有效途径。然而，大多数水溶性聚合物添加剂在相反应过程中浸出，并且无机颗粒在膜中易于聚集，这降低了膜的防污性。在该研究中，将聚（1-乙烯基吡咯烷酮）（PVP）接枝到介孔二氧化硅（MS）纳米颗粒表面上，并通过相反转法制造聚醚砜（PES）/ MS-PVP纳米复合膜。 MS-PVP在膜表面上分散孔，并且PE / MS-PVP膜的亲水性随着MS-PVP的含量增加而增加。 PES / MS-PVP膜表现出比裸PES膜更高的水通量，而不会在NaCl排出中的任何损失，并且可以通过含有3％MS-PVP的膜来实现25L / m（2）H的水通量，这几乎高出1.5倍，与0.6MPa一样高的裸PES膜。当MS-PVP负荷从0％增加到3％时，蛋白质吸附在膜表面上显着从49〜25mg / cm（2）显着下降。 （c）2015年塑料工程师协会

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