Preparation of hydrophilic and fouling resistant poly(vinylidene fluoride) hollow fiber membranes
Preparation of hydrophilic and fouling resistant poly(vinylidene fluoride) hollow fiber membranes
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亲水抗污聚偏二氟乙烯中空纤维膜的制备
DOI：
10.1016/j.memsci.2009.09.020
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发表时间：
2009-12-01
影响因子：
9.5
通讯作者：
Zhu, Li-Ping
中科院分区：
文献类型：
--
作者：
Liu, Fu;Xu, You-Yi;Zhu, Li-Ping
采用自由基聚合法合成了两亲性刷状共聚物P(MMA-r-PEGMA)。通过核磁共振质子谱(H-1 NMR)和凝胶渗透色谱(GPC)对共聚物进行了表征。以该共聚物为高分子添加剂，采用相转化法制备了聚偏二氟乙烯（PVDF）中空纤维膜。通过光传输实验研究了P(MMA-r-PEGMA)对相转化过程的影响。采用傅里叶变换红外衰减全反射光谱（FTIR-ATR）和X射线光电子能谱（XPS）对PVDF中空纤维中两亲性共聚物的表面富集进行了表征。通过扫描电子显微镜（SEM）观察干膜和湿膜的形态结构。分别表征了中空纤维的亲水性、水渗透通量、防污性能和碳油墨截留性能。这些结果表明，一步法制备的PVDF中空纤维具有高渗透通量、良好的亲水性和抗污染性。 (C) 2009 Elsevier B.V. 保留所有权利。
Amphiphilic brush-like copolymer P(MMA-r-PEGMA) was synthesized by a radical polymerization method. The copolymer was characterized by the nuclear magnetic resonance proton spectra (H-1 NMR) and gel permeation chromatography (GPC). Poly(vinylidene fluoride) (PVDF) hollow fiber membrane was then prepared by the phase inversion method using the copolymer as the macromolecular additive. The effect of P(MMA-r-PEGMA) on the phase inversion process was investigated using alight transmission experiment. The surface enrichment of amphiphilic copolymer in the PVDF hollow fiber was characterized by Fourier transform infrared attenuated total reflection spectroscopy (FTIR-ATR) and X-ray photoelectron spectroscopy (XPS). Morphological structures of both dry and wet membranes were observed by scanning electron microscopy (SEM). The hydrophilicity, water permeation flux, anti-fouling and carbon ink rejection performance of the hollow fiber were characterized respectively. All these results demonstrated that PVDF hollow fibers fabricated by the single-step method showed high permeation flux, good hydrophilicity and fouling resistance. (C) 2009 Elsevier B.V. All rights reserved.