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Fabrication of hollow fiber microfiltration membrane from PVDF/DBP/DBS system via thermally induced phase separation process

  • Zhenyu Song EMAIL logo , Wei Yang , Jinghui Zhang , Ye Li and Shanshan Yuan
Published/Copyright: February 20, 2015
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Journal of Polymer Engineering
From the journal Journal of Polymer Engineering Volume 35 Issue 7

Abstract

Polyvinylidene fluoride (PVDF) membranes were prepared via a thermally induced phase separation (TIPS) process using mixed diluent consisting of dibutyl phthalate (DBP) and dibutyl sebacate (DBS). The compatibility between PVDF and mixed diluent was predicted via the solubility parameter theory and verified by experimental results. The effects of mixed diluent composition on cloud point temperature, crystallization temperature, crystallinity, crystal phase and morphology of the membrane were investigated. As a result, as DBS mass fraction in mixed diluent increased, the cloud point temperature and the crystallinity increased, the crystal phase transformed from β phase to α phase and the morphology of the membrane cross-section changed from spherulitic structures to a bicontinuous structure. PVDF hollow fiber membranes were prepared successfully with the PVDF/DBP/DBS system via the TIPS method. The coagulant composition had a significant influence on the water permeability. When the dimethylacetamide (DMAc) content in the coagulant was 60%, the water permeability reached 877 l/m2·h, while the rejection rate to the particles with a size of 200–500 nm was above 95%.

Keywords: bicontinuous structure; hollow fiber membrane; phase diagram; thermally induced phase separation
Corresponding author: Zhenyu Song, Tianjin Eco-city Environmental Protection Ltd. Co., Tianjin 300467, PR China, e-mail: ; Sino-Singapore Tianjin Eco-city Postdoctoral Programme, Tianjin 300467, PR China; and Tianjin Contaminated Site Remediation Technology Engineering Center, Tianjin 300467, PR China

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Received: 2014-8-26
Accepted: 2015-1-5
Published Online: 2015-2-20
Published in Print: 2015-9-1

©2015 by De Gruyter

Articles in the same Issue

  1. Frontmatter
  2. Review
  3. Aided manufacturing techniques and applications in optics and manipulation for ionic polymer-metal composites as soft sensors and actuators
  4. Original articles
  5. Synthesis and properties of high temperature resistant and salt tolerant filtrate reducer N,N-dimethylacrylamide 2-acrylamido-2-methyl-1-propyl dimethyl diallyl ammonium chloride N-vinylpyrrolidone quadripolymer
  6. Preparation and characterization of non-isocyanate polyurethanes based on 2-hydroxy-6-naphthalenesulfonic acid as a monomer of the rigid phase
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  9. Analysis of the tensile properties of natural fiber and particulate reinforced polymer composites using a statistical approach
  10. Study on the deformation behavior of polyamide under the backward extrusion process
  11. High photoelectric PPV/PVA/Ag composite nanofibers by co-electrospinning
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  13. Fabrication of hollow fiber microfiltration membrane from PVDF/DBP/DBS system via thermally induced phase separation process
https://doi.org/10.1515/polyeng-2014-0238
Keywords for this article
bicontinuous structure; hollow fiber membrane; phase diagram; thermally induced phase separation

Articles in the same Issue

  1. Frontmatter
  2. Review
  3. Aided manufacturing techniques and applications in optics and manipulation for ionic polymer-metal composites as soft sensors and actuators
  4. Original articles
  5. Synthesis and properties of high temperature resistant and salt tolerant filtrate reducer N,N-dimethylacrylamide 2-acrylamido-2-methyl-1-propyl dimethyl diallyl ammonium chloride N-vinylpyrrolidone quadripolymer
  6. Preparation and characterization of non-isocyanate polyurethanes based on 2-hydroxy-6-naphthalenesulfonic acid as a monomer of the rigid phase
  7. Preparation of poly(aspartic acid) superabsorbent hydrogels by solvent-free processes
  8. Effect of carbon fiber surface modification on the flexural mechanical properties of carbon fiber reinforced polyetheretherketone biocomposites
  9. Analysis of the tensile properties of natural fiber and particulate reinforced polymer composites using a statistical approach
  10. Study on the deformation behavior of polyamide under the backward extrusion process
  11. High photoelectric PPV/PVA/Ag composite nanofibers by co-electrospinning
  12. Enhanced delivery of diclofenac diethylamine loaded Eudragit RL 100® transdermal system against inflammation
  13. Fabrication of hollow fiber microfiltration membrane from PVDF/DBP/DBS system via thermally induced phase separation process
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