Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Permeation of Ultrafiltration Membranes of Anion Charged poly(bis[4-(3-aminophenoxy) phenyl]sulfone/trimellite amide) Containing Carboxylic Acid

Carboxylic acid 함유한 음이온성 Poly(bis[4-(3-aminophenoxy)phenyl]sulfone/trimellite amide) 한외여과막의 투과특성

  • 전종영 (경북대학교 이공대학 섬유공학)
  • Published : 2009.06.30
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Abstract

Ultrafiltration membranes (UF) were manufactured by the conventional phase inversion method using an additives with N-methyl-2-pyrrolidinone as a solvent. Characteristics of performance could be controlled by the preparation conditions and the operating methods. The fouling resistance was observed by the relative ratio of permeate flux $(J_t)$/pure water flux $(J_o)$. Compared with the anion charged membranes and its original polyamide membrane, fouling resistance to the protein was increasing in proportion to the ion exchange capacity. The relative flux for the bovin serum albumin (BSA) solution increased as pH value further away from isoelectric point of BSA. The hydrophilicity of a membrane, the pH condition, and the operating temperature played the important role in the membrane permeations.

본 연구에서는 용매로 N-methyl-2-pyrrollidone을 사용하여, 상전환 방법으로 carboxylic acid를 함유한 음이온성 한외여과막을 제조하였다. 첨가제, 제막조건 및 운전조건에 따른 투과 특성을 알아보았다. Bovin serum albumin (BSA) 수용액의 pH에 따른 상대투과유속을 측정하여 fouling형성에 따른 투과 특성의 변화를 살펴보았다. 투과 특성은 막 제조환경과 투과 공정에 영향을 받았다. 이온교환용량과 측정 온도가 증가할수록, 그리고 BSA의 등전점으로부터 수용액의 pH값이 멀어질수록 상대투과유속이 증가하였다.

Keywords

References

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