国家/地区 中国（26） 美国（4） 世界知识产权组织（3） 欧洲专利局（EPO）（2） 印度（2） 韩国（2）
IPC部 B（32）
IPC大类 B01（32）
IPC小类 B01D（32）
IPC B01D069/12（32）
发明人 LI S（3） ZHANG X（3） ZHAO X（3）
HUANG Y（2） LI B（2） LIU Y（2）
WANG Y（2） ZHANG H（2） ZHOU Z（2）
公开年 2021（16） 2020（13） 2022（3）
申请年 2020（32）
专利权人 UNIV TIANJIN（2）

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

Preparing sericin doped graphene oxide membrane for forward osmosis by isolating graphene oxide flakes by centrifuging, collecting supernatant, pouring sericin solution on nylon support, pouring medium graphene oxide flake dispersion under vacuum pressure, heating, immersing in water and drying.

DEKA P, VERMA V K, SUBBIAH S, RAIDONGIA K, KEJRIWAL R

Preparation of composite modified film used in water treatment, involves soaking polyvinylidene fluoride film in solution of tris(hydroxymethyl)aminomethane hydrochloride and diaminoguanidine, modifying by oxidation deposition, and immersing film in aminated graphene oxide solution and grafting.

LIN Z, CHEN Z, YOU W, ZHANG B, WANG Y, LIN H, LI S, HUANG Y, LI D

Preparing layer-by-layer covalent cross-linked graphene oxide film useful in treating water, comprises e.g. assembling polyacrylonitrile film and graphene oxide layer-by-layer using symmetrical diamine substance as cross-linking agent.

ZHAO X, LI H, QI H, TIAN Y

Composite filter membrane comprises base membrane, and partially reduced graphene oxide deposited on base membrane, and has preset water contact angle.

HUANG Z, LIN X, LIU Y

Positive osmosis complex membrane useful for treating water, comprises matrix and complex layer comprising complex particle layer comprising graphene oxide loaded with titanium dioxide.

DUAN D, JIA Q, REN Y, LI T

Flexible anti-fouling composite filter membrane comprises mixture of graphene oxide modified basalt fiber, plant nano cellulose, lignin adhesive and polyaspartic acid, which forms a layer of flexible anti-fouling composite fiber film.

LI S, LI L, GAO F

Multi-layered membrane useful for separating many ions or molecules in a fluid stream and in device for osmotic power generation, comprises a top layer, a bottom layer, and a spacer layer.

GARAJ S, SPINA M