| 摘要 |
PURPOSE:To obtain the tubular semipermeable membrane having large amount of permeating water and desalting rate and, further, having small coefficient of consolidation, by casting and coating the liquid for preparing the membrane consisting of acetylcellulose of the prescribed degree of acetylation, solvent and hydroxy acid on the inner surface of the tubular body, after that, coagulating the obtained coated film and performing the heat treatment. |
