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PVDF/PAN blend membrane: preparation, characterization and fouling analysis

Anvari, A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/s10924-016-0889-x
  3. Abstract:
  4. Ultrafiltration membranes were prepared from blend of the poly(vinylidene fluoride) (PVDF) with polyacrylonitrile (PAN) via phase inversion method induced by immersion precipitation. N,N-dimethylacetamide (DMAc) and water were used as solvent and coagulant (non-solvent), respectively. The effect of blending ratio on the morphology and antifouling behavior of the prepared membranes was investigated. The performance of the membranes was evaluated by using cross flow filtration of pure water and buffered bovine serum albumin (BSA) solution as feed. Contact angle measurements indicated that the hydrophilicities of the PVDF/PAN membranes increased by increasing PAN concentration in the casting solution. The minimum BSA rejection was obtained for the membrane with 10% of PAN. However, higher values of PAN result in pore blockage of the membrane and an increase in the irreversible fouling resistance. © 2016, Springer Science+Business Media New York
  5. Keywords:
  6. Blend ratio ; Polymeric membrane ; Blending ; Body fluids ; Filtration ; Membranes ; Morphology ; Polymeric membranes ; Water filtration ; Blend ratios ; Immersion precipitation ; Phase inversion ; Phase-inversion method ; Poly (vinylidene fluoride)(PVDF) ; Polyacrylonitrile (PAN) ; PVDF/PAN ; Ultra-filtration membranes ; Microfiltration ; Bovinae
  7. Source: Journal of Polymers and the Environment ; Volume 25, Issue 4 , 2017 , Pages 1348-1358 ; 15662543 (ISSN)
  8. URL: https://link.springer.com/article/10.1007%2Fs10924-016-0889-x