journal6 ›› 2010, Vol. 31 ›› Issue (4): 98-102.

• Chemistry and chemical engineering • Previous Articles     Next Articles

Effect of Preparing Conditions on the Properties of PVDF / PES-C Blend Membrane


  1. (1.College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China;2.College of Polymer Materials Science and Engineering,Donghua University,Shanghai 200051,China)
  • Online:2010-07-25 Published:2012-04-16

Abstract: Flat sheet PVDF/PES-C blend membrane is prepared by using phenolphthalein polyether sulfone (PES-C) as blending material,N,N-dimethyl acetamide (DMAc) as solvent,PVP K30,PVP K90 or LiCl as additives.Under the condition of different pre-evaporation time and coagulation temperature,the membrane is characterized by shrinkage ratio and pure water flux.The shrinkage ratio has a minimum and the water flux has a maximum when the content of PVP reaches 5%.The water flux changes along with the variety of pre-evaporation time,the coagulation temperature and the operating pressure.

Key words: blend membrane, poly(vinylidene fluoride) (PVDF), phenolphthalein polyether sulfone (PES-C), shrinkage ratio, water flux

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