Integral PVA-PES Composite Membranes by Surface Segregation Method for Pervaporation Dehydration of Ethanol

吴洪; 李宪实; 聂明成; 李犇; 姜忠义

doi:10.1016/S1004-9541(11)60065-7

Your Location：

Home >

Browse articles >

Integral PVA-PES Composite Membranes by Surface Segregation Method for Pervaporation Dehydration of Ethanol

Updated：2026-01-06

- Integral PVA-PES Composite Membranes by Surface Segregation Method for Pervaporation Dehydration of Ethanol
- Chinese Journal of Chemical Engineering Vol. 19, Issue 5, Pages: 855-862(2011)
- Affiliations：
  
  1. Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
  2. Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60065-7
  CLC：
- Published：2011
- Accepted：
Scan QR Code
WU Hong, LI Xianshi, NIE Mingcheng, LI Ben, JIANG Zhongyi. Integral PVA-PES Composite Membranes by Surface Segregation Method for Pervaporation Dehydration of Ethanol[J]. , 2011, 19(5): 855-862.
DOI：

WU Hong, LI Xianshi, NIE Mingcheng, LI Ben, JIANG Zhongyi. Integral PVA-PES Composite Membranes by Surface Segregation Method for Pervaporation Dehydration of Ethanol[J]. , 2011, 19(5): 855-862. DOI： 10.1016/S1004-9541(11)60065-7.

摘要

Abstract

A facile surface segregation method was utilized to fabricate poly(vinyl alcohol)-polyethersulfone (PVA-PES) composite membranes. PVA and PES were first dissolved in dimethyl sulfoxide (DMSO)

then casted on a glass plate and immersed in a coagulation bath. During the phase inversion process in coagulation bath

PVA spontaneously segregated to the polymer solution/coagulation bath interface. The enriched PVA on the surface was further crosslinked by glutaraldehyde. Scanning electron microscopy (SEM)

X-ray photoelectron spectroscopy (XPS) and energy dispersive spectrometer (EDS) confirmed the integral and asymmetric membrane structure with a dense PVA-enriched surface and a porous PES-enriched support

as well as the surface enrichment of PVA. The coverage fraction of the membrane surface by PVA reached up to 86.8% when the PVA content in the membrane recipe was 16.7% (by mass). The water contact angle decreased with the increase of PVA content. The effect of coagulation bath type on membrane structure was analyzed. The membrane pervaporation performance was evaluated by varying the PVA content

the annealing temperature

feed concentration and operation temperature. The membrane exhibited a fairly good ethanol dehydration capacity and long-term operational stability.

关键词

Keywords

references

Views

2671

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Enhancing Structural Stability and Pervaporation Performance of Composite Membranes by Coating Gelatin onto Hydrophilically Modified Support Layer

Research on the electrostatic spray characteristics of ethanol/n-butanol blended fuels

Advances in inorganic membranes for xylene isomers separation: Fabrication strategies and mechanistic insights

Genetic engineering and adaptive evolution of Saccharomyces cerevisiae for robust xylose uptake and ethanol production

Study on the recovery of NMP waste liquid in lithium battery production by coupled pervaporation–adsorption process and evaluation of technical and economic performances

Related Author

吴洪

芦霞

李宪实

李奕帆

赵翠红

姜忠义

Hou Junxing

Sun Yuqi

Related Institution

2 Synergetic Innovation Center of Chemical Science and Engineering (Tianjin)

3 Tianjin Key Laboratory of Membrane Science & Desalination Technology

School of Aerospace Engineering, Zhengzhou University of Aeronautics

Henan Key Laboratory of General Aviation Technology, Zhengzhou University of Aeronautics

School of Chemical Engineering, Guangdong University of Petrochemical Technology

⁰