国家/地区 中国（8）
IPC部 C（8）
IPC大类 C04（8）
IPC小类 C04B（8）
IPC C08F292/00（8）
发明人 LI G（3） LIN Z（3） SHAO Y（3）
WU C（3）
公开年 2022（4） 2021（3）
申请年 2021（8）
专利权人 KEZHIJIE NEW.（3）

Graphene layer complex used in the field of oil and gas well cementing, comprises graphene oxide and polymer grafted on the graphene oxide, and the polymer comprises a structural unit derived from 2-acrylamide-2-methylpropanesulfonic acid and a structural unit derived from the second monomer.

LIU J, MIAO X, WEI H, ZHOU S, WANG M

Collapse-preserving early-strength functional monomer useful for collapse-preserving early-strength polycarboxylate water-reducing agent, functional monomer is prepared by performing esterification modification of graphene oxide and hydroxycarboxylic acid, and grafting a silane coupling agent.

LIN Z, WU C, LI G, SHAO Y

Oxidized graphene monomer useful for polycarboxylic acid water reducing agent, and building materials e.g. cement, and in municipal, viaduct, road and other building industry comprises glycolic acid, graphene oxide, and vinyltrimethoxysilane.

FANG Y, WU C, SHAO Y, LIN Z, LI G

Anti-mud early-strength functional monomer prepared by grafting a silane coupling agent after non-covalent modification of graphene oxide and quaternary ammonium salt.

LIN Z, WU C, LI G, SHAO Y

Concrete slump retaining agent, comprises graphene oxide, 2-chloroacrylic acid, solid base, methallyl polyoxyethylene ether or isopentenyl polyoxyethylene ether, initiator, chain transfer agent, reducing agent, alkenoic acid compound, acrylate compounds and water.

ZHAO Q, MENG X, ZHANG J, HUANG X, LI W

Preparing mud-resistant concrete water-reducing agent comprises e.g. mixing methyl alkenyl polyoxyethylene ether, sodium styrene sulfonate and water, heating, adding graphene oxide solution, mixing, adding oxidizing agent, adding acrylic acid, adding sodium hydroxide aqueous solution and cooling.

ZHANG Z, DUAN P

Multifunctional auxiliary agent comprises high-efficiency polycarboxylic acid water-reducing agent, inorganic nanoparticles, modified cellulose, silane coupling agent and water.

JIANG X

Preparing high-strength concrete, comprises weighing cement, sand, stone, silica fume, fly ash, water, water reducing agent, energy storage and heat storage additive, steel fiber, polypropylene fiber, and mixing cement.

WANG R, CHEN S