国家/地区 中国（3）
IPC部 C（3）
IPC大类 C08（3）
IPC小类 C08F（3）
IPC C08F292/00（3）
发明人
公开年 2023（3）
申请年 2023（3）
专利权人

Preparing negatively charged graphene oxide-based drilling fluid loss reducer, comprises dispersing graphene oxide in solvent, adding organic amine, negatively charged monomer, 4,4'-azobis(4-cyanovaleric acid) as initiator and amide condensing agent and carrying out polymerization reaction.

LI H, YI S, DONG H

High slump retention polycarboxylic acid water reducing agent comprises ethylene-glycol monovinyl polyethylene glycol macromonomer, acrylic acid, slump-retaining functional monomer, sodium formaldehyde sulfoxylate, hydrogen peroxide and mercaptoacetic acid.

LIANG Y, ZHANG Y, PANG S, MA M

Azo-modified graphene used for preparing antibacterial and deodorizing textile, comprises graphene particles, 2-bromoisobutyryl bromide, modified grafted polyethyl methacrylate, 4-cyanoaniline diazonium salt for diazo coupling reaction to obtain graphene material grafted with azo polymer on surface.

LUO W, ZHANG Q, WANG J, LI Y