Paper Title:
Studies on the Relationship between Morphology and Water Flux of PVDF/PU Blend Membranes
  Abstract

Polyvinylidene fluoride/polyurethane (PVDF/PU) blend membranes were made via immersion precipitation process, the surface morphologies and the micro-porous structures of the blend membranes were analyzed using scanning electronic microscope (SEM) and fractal theory, the water flux change with the operation pressure of the blend membranes was investigated, and the relationship between blend membrane morphology and water flux was discussed. The results showed that, the water flux of the resulting blend membranes was increased, and the contribution of different structures to water flux was in the following order: cross-section finger-shaped porous defects > cross-section through holes > blend membrane surface pores. In addition, water flux of the blend membranes was also related to the deformability of PU.

  Info
Periodical
Chapter
Chapter 1: Materials Science and Engineering
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
387-391
DOI
10.4028/www.scientific.net/AMM.121-126.387
Citation
G. L. Huan, J. L. Liu, Q. Y. Du, X. Y. Hu, "Studies on the Relationship between Morphology and Water Flux of PVDF/PU Blend Membranes", Applied Mechanics and Materials, Vols. 121-126, pp. 387-391, 2012
Online since
October 2011
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$32.00
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