公开(公告)号：US20160137557A1

公开(公告)日：2016-05-19

申请号：US14898471

申请日：2014-05-09

Applicant: NANJING UNIVERSITY OF TECHNOLOGY

Inventor： Xuehong GU ,  Zhenzhou SHI ,  Yuanyuan CHEN ,  Chun ZHANG ,  Nanping XU

IPC: C04B35/622 ,  B01D69/08 ,  B01D67/00 ,  B01D71/02

CPC classification number: C04B35/6225 ,  B01D67/0041 ,  B01D69/081 ,  B01D69/082 ,  B01D71/024 ,  B01D71/025 ,  B01D2325/04 ,  B01D2325/24 ,  C04B2235/3246 ,  C04B2235/6021

Abstract: The Invention relates to a method for preparing a multichannel hollow fiber membrane. According to a certain ratio, ceramic powder, a macromolecular polymer, an organic solvent, and a dispersant are mixed evenly to prepare a membrane casting solution; and after bubble removing processing is performed on the membrane casting solution, a membrane green body is formed with the cooperation of a multichannel hollow fiber die and phase inversion. After the membrane green body is roasted at a high temperature, a multichannel ceramic hollow fiber membrane is formed. The multichannel ceramic hollow fiber membrane has an asymmetric structure and a skeleton structure in an inner cavity and can meet the strength and flux requirements of a ceramic hollow fiber membrane.

Abstract translation: 本发明涉及一种制备多通道中空纤维膜的方法。 按照一定的比例，将陶瓷粉末，高分子聚合物，有机溶剂和分散剂均匀混合以制备膜浇铸溶液; 并且在膜浇铸溶液进行气泡去除处理之后，通过多通道中空纤维管芯的配合形成膜生坯并进行相转化。 在高温下烘烤膜生坯后，形成多孔陶瓷中空纤维膜。 多通道陶瓷中空纤维膜在内腔中具有不对称结构和骨架结构，可以满足陶瓷中空纤维膜的强度和通量要求。