国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC
发明人 ZHANG J（2）
公开年 2022（2）
申请年 2020（2）
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

Statically placed device for preparing graphene oxide, has stirring device fixedly connected with tank body, where side wall of tank body is provided with discharging valve and side wall observation window.

QU Y, TANG R, GE M, ZHANG J, YIN S, WANG B