膜厚度对CTA正渗透平板膜性能的影响

发布时间：2018-05-31 12:01

本文选题：三醋酸纤维素 + 正渗透膜　；参考：《膜科学与技术》2017年04期

【摘要】：利用三醋酸纤维素(CTA)为膜材料,采用非溶剂诱导相转化(NIPS)法制备了不同厚度的CTA平板正渗透(FO)膜,研究了膜厚度对CTA平板FO膜性能的影响.结果表明,随着CTA FO平板膜厚度增加,膜水通量盐通量降低,截留升高.当CTA平板FO膜膜厚度为50μm时,NaCl截留高达77.74%,压力延迟渗透(PRO)模式下的水通量为12.15LMH.30μm的膜孔隙率最大为74.13%,结构参数(S)最小为421μm.
[Abstract]:Using cellulose triacetate (CTAA) as the membrane material, different thickness CTA plate forward osmosis (FOV) membranes were prepared by non-solvent induced phase transformation (CTA) method. The effects of the thickness of the membranes on the properties of CTA flat FO membranes were studied. The results showed that with the increase of CTA FO membrane thickness, the water flux and salt flux decreased and the retention increased. When the thickness of CTA flat FO membrane is 50 渭 m, the retention of CTA is up to 77.74, the membrane porosity with water flux of 12.15LMH.30 渭 m is 74.13 and the structure parameter is 421 渭 m.
【作者单位】：化学工程联合国家重点实验室华东理工大学化学工程研究所膜科学与工程研发中心;
【基金】：国家科技部支撑计划项目(2014BAB07B01和2015BAB09B01)
【分类号】：TQ051.893

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