国家/地区 中国（18）
IPC部 B（18）
IPC大类 B01（18） C02（7） C07（2）
IPC小类 B01D（18）
IPC B01D069/10（18）
发明人 JU Y（2） WANG D（2） WANG T（2）
WANG W（2） WANG Y（2） YI J（2）
ZHANG H（2）
公开年 2022（15） 2023（3）
申请年 2022（18）
专利权人 CHONGQING GR.（2） UNIV DALIAN .（2）

Composite film for graphene, has gap for connecting upper surface and lower surface of graphene layer is set in graphene layer, through hole is set on supporting layer, and through holes on two sides are staggered.

JU Y, YI J, WANG D, WANG W

Graphene filter film comprises first non-woven fabric layer, graphene layer and second non-woven fabric layer arranged in sequentially, where each layer is embedded with each other at connection position.

JU Y, YI J, WANG W, WANG D

Preparing tubular membrane used in water treatment, involves mixing polymer material with additives and solvents, defoaming to obtain filter separation layer casting solution, spinning filter separation film liquid on core rod by electrostatic spinning, melting thermoplastic resin, thermally shaping.

ZHANG H, XU X, ZHAN Y

Preparing liquid electronic chemical filtering and purifying film by e.g. dispersing microporous solid zinc oxide-zeolitic imidazolate framework particles as precursor, potassium hydroxide as activator, polyvinyl pyrrolidone as pore-forming agent, preparing casting solution, and coating.

LI X, MA W

Composite film useful in separating and selecting magnesium and lithium in high-magnesium-lithium ratio salt lake brine, comprises ultrafiltration support layer and modified polyamide layer.

LI Z, WANG H, PENG Z, ZHAO Y, LI Y, WANG M

Method for preparing nanometer diamond film based on graphene anchoring technology in e.g. petroleum industry, involves forming porous support layer, microporous base film layer, and multi-layer composite nano-diamond film graphene ultra-thin coating structure.

ZHANG C, ZOU J, ZHANG T, ZHOU J

Preparing nano-filtration purifying membrane for emergency drinking, comprises mixing polyvinylidene fluoride, dopamine hydrochloride, polyethyleneimine, quaternized polyethyleneimined and dimethyl acetamide and reacting.

ZHAO L, JIANG W, ZHANG S, KANG P, GU L, XU M

Graphene oxide separation membrane used for separating ethylene-ethane mixed gas, comprises selective separation layer and support layer, where selective separation layer includes graphene oxide nano-sheets, and also includes nano-cluster formed by silver ion and polyelectrolyte between nano-sheet.

JIN W, CHENG L, LIU G

Controllable water flux or retention rate graphene oxide/chitosan composite nanofiltration membrane useful in preparing of water flux and nanofiltration performance equipment and textile dye wastewater treatment equipment, comprises graphene oxide-chitosan nanosheets.

TANG J, WANG Y, YANG L, HUANG L

Preparing graphite alkyne separation membrane in-situ, involves e.g. preparing regular distributed non-groove on surface of flat metal substrate, coating protective layer on surface, preparing graphite film, coating porous polymer, removing protective layer and forming through hole.

WANG Z, QI Y, XIANG N, LIU X, LI L, WANG T