Effects of Amphiphilic Additive Pluronic F127 on Performance of Poly (Ether sulfone)Ultrafiltration Membrane
- 作者：ChaoLiuYanbinYunNanjie WuYing HuaChunli Li
- 会议时间：2012-06-26
- 关键词：PES ; ultrafiltration membrane ; Pluronic F127 ; oxalic acid ; PEG4000
- 作者单位：ChaoLiu,YanbinYun,Nanjie Wu,Ying Hua(School of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China)Chunli Li(New Technique Centre, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China)
- 母体文献：2012青岛国际脱盐大会论文集
- 会议名称：2012青岛国际脱盐大会
- 会议地点：青岛
- 主办单位：中国金属学会
- 语种：chi
- 分类号：R57;X70
摘要
The amphiphilic additive Pluronic F127 can effectively improve the hydrophilic of membranes. This paper reported the effects of Pluronic F127 additive, Pluronic F127/oxalic acid and Pluronic F127/PEG4000 blended additives on morphology, separation properties and hydrophilic of poly (ether sulfone) (PES) ultrafiltration membrane. The membrane was made by liquid-solid phase inversion method. The results showed that: The Pluronic F127 can improve the water flux and retention of PES ultrafiltration membrane, increase pore size and porosity, and change the cross-section structure. The flux of PES membrane with F127 was lower than that with oxalic acid at the same concentration. As the concentration of F127 increased, the flux increased, the retention showed undulation, and the hydrophilic improved. Compared with only F127, the flux of the membrane with F127 blended additives slightly increased and the effect of F127 is the major in the blending system, the blended additives changed the hydrophilic of membranes. The blended additives have a greater impact on the performance of F127 membrane. As the blended additives concentration increased, the membrane structure exhibited a skin layer, a porous layer and a support layer. When blended additives were in high concentration, the morphology changed from finger-like to sponge-like macro-voids structure.