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首页> 外文期刊>Journal of Applied Polymer Science >PDMS/PVDF microporous membrane with semi-interpenetrating polymer networks for vacuum membrane distillation
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PDMS/PVDF microporous membrane with semi-interpenetrating polymer networks for vacuum membrane distillation

机译：PDMS / PVDF微孔膜，具有半互穿聚合物网络，用于真空膜蒸馏

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摘要

In this article, using the non-solvent induced phase separation process, a new microporous membrane with the semi-interpenetrating polymer network (semi-IPN) structure was produced. For this membrane, polydimethylsiloxane (PDMS) polymer is crosslinking and poly(vinylidene fluoride) (PVDF) polymer is linear, by changing the mass ratio of PDMS/PVDF, the structure and the performance of the prepared membranes were studied. The membranes were also investigated by attenuated total reflection-Fourier transform infrared (ATR-FTIR), scanning electron microscopy-energy-dispersive X-ray spectroscopy, X-ray diffraction, thermogravimetric analysis, and water contact angle, etc. ATR-FTIR spectroscopy confirmed the formation of semi-IPN; compared with the PDMS/PVDF polymer without semi-IPNs structure, the viscosity of the semi-IPNs structured casting solution increased, membrane mechanical property increased but its hydrophobicity decreased. Using the resulting membranes for the vacuum membrane distillation desalt of the NaCl solution (30 g/L), 99.9% salt rejection and reasonable flux were obtained. (C) 2017 Wiley Periodicals, Inc.
机译：在本文中，使用非溶剂诱导的相分离过程，产生具有半渗透聚合物网络（半IPN）结构的新型微孔膜。对于该膜，通过改变PDMS / PVDF的质量比，研究了聚二甲基硅氧烷（PDMS）聚合物，聚（偏二氟乙烯）（PVDF）聚合物是线性的，所以研究了制备的膜的结构和性能。还通过减弱的总反射 - 傅立叶变换红外（ATR-FTIR），扫描电子显微镜 - 能量分散X射线光谱，X射线衍射，热重分析和水接触角等来研究膜。ATR-FTIR光谱确认了半IPN的形成;与没有半IPNS结构的PDMS / PVDF聚合物相比，半IPNS结构浇铸溶液的粘度增加，膜机械性能增加，但其疏水性降低。利用所得膜用于NaCl溶液（30g / L）的真空膜蒸馏脱落，得到99.9％的盐排斥和合理的通量。 （c）2017 Wiley期刊，Inc。

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