国家/地区 中国（4）
IPC部 B（4） C（4）
IPC大类 B01（4）
IPC小类 B01D（4）
IPC B01D067/00（4） C02F001/44（4） B01D069/12（3）
B01D069/02（2） B01D069/10（2） C02F101/36（2）
C02F101/38（2）
发明人
公开年 2022（4）
申请年 2020（4）
专利权人

Preparation of nanofiltration membrane involves coating film casting liquid containing polymer on nonwoven fabric, contacting obtained base film with e.g. aqueous phase solution containing amine monomer to form polyamide functional layer, crosslinking, imidizing, post-treating, and drying.

LIU Z, ZHANG J, HU L, LIANG S, WANG B

Polyvinylidene fluoride composite membrane, used in water treatment, comprises PVDF-based membrane, and poly-dopamine/oxidation graphene composite layer compounded on the film.

ZHAO X, LIU L, ZHU Z, MIAO L, MA J, JIA G

Polymer solution used for preparing nanofiltration membrane in water treatment, and also in high-temperature separation and desalination, comprises polyaryl ether sulfone block polymer, good solvent, poor solvent and additive.

CAO M

Graphene oxide titanium dioxide-dopamine polyetherimide nanofiltration membrane comprises organic ultrafiltration membrane support and functional layer prepared by ultrasonically mixing graphene oxide solution and titanium dioxide-dopamine aqueous solution, filtering to form membrane, and filtering.

LAN W, FANG F, HONG Y, CHEN Y