国家/地区 中国（4）
IPC部 C（4）
IPC大类 C04（4）
IPC小类 C04B（4）
IPC C08F220/06（4）
发明人 LI G（2） LIN Z（2） LIU J（2）
SHAO Y（2） WU C（2）
公开年 2022（2）
申请年 2021（4）
专利权人 KEZHIJIE NEW.（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

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

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

Cement-based grouting material for semi-flexible mixture, comprises sulphoaluminate cement, slag powder, fly ash, chemical additive, modified graphenThe cloth full cutting device according to wherein the cutting device between the engaginge fiber and rest is water.

WEI Y, LIU Y, QI S, LIU J, HUANG W