Preparation and characterization of hollow fiber forward osmosis membrane by interfacial polymerization

LI Gang; WANG Zhouwei; LI Chunxia; LI Xuemei; HE Tao; GAO Congjie

doi:10.3969/j.issn.0438-1157.2014.08.032

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Preparation and characterization of hollow fiber forward osmosis membrane by interfacial polymerization

更新时间：2025-12-10

- Preparation and characterization of hollow fiber forward osmosis membrane by interfacial polymerization
- CIESC Journal Issue 8, Pages: 3082-3088(2014)
- 作者机构：
  
  1. 中国海洋大学化学化工学院,山东,青岛,266003
  2. 中国科学院上海高等研究院,上海,201210
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.08.032
  CLC： Q028.5X703.1
- Online First：05 August 2014，
  
  Published：05 August 2014
- 稿件说明：
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LI Gang, WANG Zhouwei, LI Chunxia, et al. Preparation and characterization of hollow fiber forward osmosis membrane by interfacial polymerization[J]. CIESC Journal, 2014, (8): 3082-3088.
DOI：

LI Gang, WANG Zhouwei, LI Chunxia, et al. Preparation and characterization of hollow fiber forward osmosis membrane by interfacial polymerization[J]. CIESC Journal, 2014, (8): 3082-3088. DOI： 10.3969/j.issn.0438-1157.2014.08.032.

摘要

以聚砜为原料，通过浸没沉淀法制备中空纤维基膜，然后采用界面聚合法制备出中空纤维正渗透膜。考察了制膜参数、基膜结构和FO性能三者之间的关系。结果表明基膜的厚度为影响FO性能的主要因素之一。基膜的厚度越厚，FO过程中渗透效率越低。制得PSF中空纤维正渗透膜的厚度为0.129 mm，断裂拉伸力为2.48 N，FO通量为10.3 L·m-2·h-1，逆向盐扩散性能为0.15 g·L-1。

Abstract

Hollow fiber thin film composite forward osmosis membrane was prepared on the top of a tailor-made polysulfone hollow fiber support by interfacial polymerization. The relationship between casting parameters

membrane structure

and FO performance was studied. The results showed that the thickness of substrate membrane was one of the main factors affecting FO performance. The thicker membrane could cause more serious internal concentration polarization

leading to lower effective osmotic pressure across the membrane as well as water flux in the FO process. A thin film composite membrane with a thickness of 0.129 mm and force at breakage of 2.48 N was obtained. The FO membrane showed a water flux of 10.3 L·m-2·h-1 and a specific salt diffusion of 0.15 g·L-1.

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