Experimental Research on PVDF Membranes Prepared by Supercritical CO2-Induced Phase Inversion

Xue Wu Liu; Yong Qiang Du; Jie Tang

doi:10.4028/www.scientific.net/AMR.557-559.1704

Paper Titles

Research on Inhibition Marine Microbial Adherence of a Novel Nano-TiO₂ Coating on Aluminum
p.1687

Preparation of CaTiO₃ Thin Film by Sol-Gel Dipping Coating
p.1691

Effects of Affinity of Solvents on the Haze of Anti-Glare Films
p.1695

Microstructure and Dry Sliding Wear Behavior of Laser Cladding (TiC+TiN)-NiCrWC Powder Composite Coating on DZ125 Superalloy
p.1699

Experimental Research on PVDF Membranes Prepared by Supercritical CO₂-Induced Phase Inversion
p.1704

Directionally Solidified Laser Cladding
p.1708

Study on Behavior of Ceramic Phases in Laser Surface Ceramic Process
p.1712

Microstructure and Protertise of Self-Lubricative Ceramic Coatings on Carbon Steel by PEO in Aluminate Electrolyte Containing Graphite
p.1716

Cyclic-Oxidation of RexOy-Modified Aluminide Coating
p.1721

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 557-559Experimental Research on PVDF Membranes Prepared...

Experimental Research on PVDF Membranes Prepared by Supercritical CO₂-Induced Phase Inversion

Abstract:

Microporous polyvinylidene fluoride (PVDF) membranes were prepared by supercritical CO₂-induced phase inversion. The structure and morphology of prepared PVDF membranes were characterized by SEM. The effects of processing parameters such as CO₂ pressure, temperature and PVDF concentration on the membrane morphologies, pore size distribution and especially on the porosity of the membranes were investigated. The results showed that when the PVDF concentration was between 15-35wt.%, the temperature and the pressure were respectively in the range of 35-60°Cand 8-16MPa, the prepared PVDF membrane showed a cellular structure; the porosity changed in the range of 55.2~85.7% and showed a peak valuewith the increase of temperature, CO₂ pressure and PVDF concentration. The effects of process parameters on the membrane porosity were explained based on the properties of supercritical fluids.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 557-559)

Pages:

1704-1707

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.557-559.1704

Citation:

Cite this paper

Online since:

July 2012

Authors:

Xue Wu Liu, Yong Qiang Du, Jie Tang

Keywords:

Phase Inversion, Polyvinylidene Fluoride, Porosity, Supercritical CO₂

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] D.W. Matson, J.L. Fulton, R.C. Petersen, R.D. Smith, Rapid expansion of supercritical fluid solutions: Solute formation of powders, thin films and fibers [J]. Ind. Eng. Chem. Res. 1987, 26: 2298-2306.

DOI: 10.1021/ie00071a021

Google Scholar

[2] LI Zhi-yi, MENG Ting-yu, LIU Xue-wu, XIA Yuan-jing, HU Da-peng. Dyeing PET textile with C.I. Disperse Red 60 and C.I. Disperse Orange 25 in Supercritical CO2[J]. Journal of Donghua University, 2008,25(4):379-383.

Google Scholar

[3] Zhang YanJie, Liu XueWu, Yang YanFang, Zhou ZhiZun .Preparation of Tetracycline Microparticles Based on Supercritical Fluid Technique . Advanced Materials Research,2011(236-238),1707-1711.

DOI: 10.4028/www.scientific.net/amr.236-238.1707

Google Scholar

[4] GAO Jian, REN Zhong-qi, ZHANG Ze-ting, ZHANG Wei-dong. The Experimental Study on the Influence of Porosity on Membrane Absorption Process[J] Journal of Chemical Engineering of Chinese Universities,2007,21(1):14-19.

Google Scholar