公开(公告)号：US20230347295A1

公开(公告)日：2023-11-02

申请号：US17637169

申请日：2021-11-18

申请人： ARUN CO., LTD.

发明人： Soon Bong OH ,  Jun Won OH

IPC分类号： B01D67/00 ,  B01D69/14 ,  B01D71/34 ,  B01D71/02 ,  B01D69/10 ,  B01D69/02 ,  B01D69/12

CPC分类号： B01D67/00793 ,  B01D69/148 ,  B01D71/34 ,  B01D71/0211 ,  B01D71/0212 ,  B01D71/024 ,  B01D69/10 ,  B01D69/02 ,  B01D69/1213 ,  B01D2325/02834 ,  B01D2325/24 ,  B01D2325/20 ,  B01D2323/081 ,  B01D2323/082 ,  B01D2323/18 ,  B01D2323/2185 ,  B01D2323/2187 ,  B01D2323/21819 ,  B01D2323/56

摘要： A method of manufacturing a PVDF composite separation membrane according to an embodiment of the present disclosure has advantages in that it is possible to control the size of pores in various ways based on the nonsolvent-induced phase transition process and calcination process, and manufacture a porous high-strength PVDF composite separation membrane having high water permeability, and it is possible to manufacture a PVDF composite separation membrane which may exhibit durability that does not damage the membrane even under high pressure, while having heat resistance applicable even at a high temperature of 150° C., and excellent chemical resistance to acids and alkalis, and suppress heavy metal adsorption and biofouling phenomenon, and may allow an organic material to be decomposed by ultrasonic waves or UV photocatalysts. In addition, the PVDF composite separation membrane has excellent mechanical, thermal and chemical resistance properties, suppresses the biofouling phenomenon, and exhibits high ultrasonic reactivity.