国家/地区 中国（2）
IPC部 C（2）
IPC大类
IPC小类
IPC
发明人 PANG S（2）
公开年 2023（2）
申请年
专利权人

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

Preparing composite material, comprises e.g. dividing graphene powder in water, stirring and ultrasonating, diversifying nitrogen-containing compounds, completely dissolving, heating, crystal precipitating, centrifuging, washing and freezing.

LIU J, PANG S, LI S, LI G