国家/地区 中国（6）
IPC部 C（6）
IPC大类 C04（6） C08（6）
IPC小类 C04B（6）
IPC C08F222/02（6）
发明人 HUANG X（2） LI W（2） MENG X（2）
公开年 2022（2）
申请年 2021（4） 
专利权人 CHONGQING JI.（2）

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

Preparing concrete water reducing agent useful in concrete material comprises e.g. mixing graphene oxide and water, adding solid base to react with 2-chloroacrylic acid, mixing carboxylated graphene dispersion with methallyl polyoxyethylene ether and isopropanol and post-processing.

MENG X, LI Y, HUANG X, LI W

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

Environmentally friendly self-corrosion-type polycarboxylic acid water reducing agent, comprises e.g. sodium methacrylate sulfonate, diethylene triamine, graphene oxide, methallyl polyoxyethylene ether, and mercaptopropionic acid.

LIU B

Micro-nanocrystalline core composite material in cement-based material for concrete, comprises graphene oxide and/or chemically grafted modified graphene oxide, hydrated calcium silicate, and high molecular polymer.

ZHANG L, WANG D, LI H

Preparation of enhanced polycarboxylic water reducer involves reacting polyether monomer and graphene oxide, adding modified polyether monomer and water, irradiating, polymerization reacting, constant-temperature reacting and neutralizing.

KE Y, FANG Y, CHEN X, LIN T, GUI M