国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC B01D067/00（2）
发明人 LIU S（2）
公开年 2023（2）
申请年
专利权人

Hollow fiber solvent-resistant nano-filtration membrane useful e.g. for separation and purification of organic solvent system, comprises base film and separation skin layer, where base film material is polyimide of generating crosslinking reaction with polyamine compound.

LIU S, LV X, JIANG Y, LI S, SU J, SU B

Preparing ion exchange membrane, involves preparing two main bodies carrying particles with opposite charge, cleaning and drying surface of substrate having enhanced permeability, and soaking in dispersion liquid, forming thin film on substrate surface, drying, dissolving substrate in polar solvent.

LIANG Z, FANG Y, LIU S, ZHANG D, CHEN X