Fabrication and hydrophilic properties of polysulfone/modified multiwalled carbon nanotube composite membranes

SHI Jingyuan; WANG Wenyi; WANG Jinlong; GAO Ningning; LI Yanling; WANG Enxia; HUO Tengbo

doi:10.11949/j.issn.0438-1157.20151096

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Fabrication and hydrophilic properties of polysulfone/modified multiwalled carbon nanotube composite membranes

更新时间：2025-12-10

- Fabrication and hydrophilic properties of polysulfone/modified multiwalled carbon nanotube composite membranes
- CIESC Journal Issue 2, Pages: 654-660(2016)
- 作者机构：
  
  天津工业大学省部共建分离膜与膜过程国家重点实验室, 材料科学与工程学院,天津,300387
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20151096
  CLC： Q028.8
- Online First：05 February 2016，
  
  Published：05 February 2016
- 稿件说明：
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SHI Jingyuan, WANG Wenyi, WANG Jinlong, et al. Fabrication and hydrophilic properties of polysulfone/modified multiwalled carbon nanotube composite membranes[J]. CIESC Journal, 2016, (2): 654-660.
DOI：

SHI Jingyuan, WANG Wenyi, WANG Jinlong, et al. Fabrication and hydrophilic properties of polysulfone/modified multiwalled carbon nanotube composite membranes[J]. CIESC Journal, 2016, (2): 654-660. DOI： 10.11949/j.issn.0438-1157.20151096.

摘要

利用浸没沉淀相转化法

以聚砜(PSF)为膜材料

羧基化碳纳米管(MWCNTs-COOH)为添加剂

聚乙烯吡咯烷酮(PVP)为致孔剂

N-二甲基乙酰胺(DMAc)为溶剂

制备了聚砜/多壁碳纳米管复合膜

系统研究了制备复合膜时碳纳米管的添加量、预挥发时间以及凝固浴组成对其结构和性能的影响。实验结果表明

添加MWCNTs-COOH后

复合膜的亲水性能和抗污性能显著提高

同时复合膜的力学性能也明显增强。复合膜的 SEM 照片显示

随预挥发时间的延长和凝固浴中DMAc 质量分数的增加

复合膜断面由指状孔结构向海绵状孔结构过渡;复合膜的水通量下降

截留率上升。

Abstract

The polysulfone(PSF)/modified multiwalled carbon nanotube(MWCNTs-COOH) composite membranes were formed via phase inversion process. The membranes used PSF as film-forming materials

MWCNTs-COOH as additives

polyvinyl pyrrolidone(PVP) as pore-foaming agent and N

N-dimethylacetamide as solvent. The effects of MWCNTs-COOH constitution

solvent evaporation time and coagulation bath composition on the composite membranes were studied systematically. Experiment results showed that the hydrophilic property and anti-pollution ability of composite membranes were improved remarkably. In addition

the mechanical property was also improved significantly. SEM images showed that the porous structure of cross-section changed from finger type to sponge type when the solvent evaporation time increased or the DMAc mass fraction increased of the coagulation bath

the pure water flux was declined and the BSA rejection was increased observably.

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