国家/地区 中国（2）
IPC部 C（2）
IPC大类 C08（2）
IPC小类 C08F（2）
IPC C08F220/56（2）
发明人
公开年 2022（2）
申请年 2022（2） 
专利权人

Composite hydrogel sponge useful in field of seawater desalination, comprises water supply layer and evaporation layer that are stacked successively; material of water supply layer is polyacrylamide hydrogel; material of evaporation layer is polyacrylamide/graphene composite hydrogel.

LI S, LI T, WU Z, HU Z, LAI X, WANG D, LI C, WANG W, LI L

Preparing graphene oxide nano hydrogel plugging agent for drilling fluid, involves putting an appropriate amount of graphite, sodium nitrate, and concentrated sulfuric acid in a three-necked flask, slowly adding an appropriate amount of potassium permanganate, and stirring.

TANG W, BAI Y, HUANG J, WANG R, XIE G