Development of asymmetric BTDA-TDI/MDI (P84) copolyimide flat sheet and hollow fiber membranes for ultrafiltration : morphology transition and membrane performance

• Main Authors: Ren, Jizhong., Li, Zhansheng.
• 其他作者: Institute of Environmental Science and Engineering
• 格式: Article
• 語言: English
• 出版: 2013
• 在線閱讀: https://hdl.handle.net/10356/98627; http://hdl.handle.net/10220/10867

In this paper, the effects of γ-butyrolactone (GBL) weight ratio (wGBL) and membrane thickness on the formation of asymmetric flat sheet membranes prepared with P84 (BTDA-TDI/MDI co-polyimide)/N-methyl-2-pyrrolidone (NMP)/GBL casting solutions are investigated. With the increase of membrane thicknes...