国家/地区 中国（27）
IPC部 B（27）
IPC大类 B01（27） C02（25） C01（2）
C08（2）
IPC小类 B01D（27）
IPC B01D069/02（27）
发明人 LI S（3） ZHANG X（3） HUANG Y（2）
LIU X（2） LIU Y（2） WANG Y（2）
ZHANG J（2）
公开年 2020（13） 2021（12） 2022（2）
申请年 2020（27）
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

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 gas selective separation filter involves providing graphene membrane on sacrificial support layer, subjecting graphene membrane to transient pressurized ozone gas pulse, purging ozone, and cooling down ozone treated graphene membrane.

AGRAWAL K V, HUANG S, HSU K, AGRAWAL K, HWANG S, HUSH K, XU G

Three-dimensional printing technology for production of sewage treatment filter membranes involves establishing multi-porous gradient cylindrical model on three-dimensional Max software, and e.g. exporting stereolithography format.

FAN Z, WANG Z, HAN Z, ZHANG X, LIANG J

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

Preparing graphene oxide (GO)-polysulfone (PSF) composite film selection layer for membrane bioreactor, by adding PSF particles to dimethylacetamide solution, adding GO particles, stirring, and forming casting liquid film on base film.

ZHOU Z, XU X, WU Q, ZHENG T, YUAN H, HAATO T

Preparing high-flux dye separation nano-filtration membrane involves dispersing inorganic nano-particles and polymer in water, adding carbodiimide and succinimide, reacting to obtain polymer modified inorganic nano-particle solution.

GAI J, CHEN L, JIANG M, ZOU Q, WEI N, LIU Y

Halloysite nanotube/graphene oxide oil-water separation membrane used for treating marine oil spills, comprises nylon bottom film as support layer and having preset thickness, and halloysite nanotube/graphene oxide layer loaded on film.

LIU E, DU S, ZHANG Z, ZHANG X