▎ 摘　　要

NOVELTY - Preparing polyacrylic acid composite hydrogel involves mixing graphene, acrylic acid monomer, N,N -methylenebisacrylamide and initiator uniformly according to a certain mass ratio, sealing and placing at 20-90 degrees C under a protective atmosphere, incubating in the environment for 5-24 hours, cooling to room temperature, soaking and washing the obtained product in water to remove excess impurities to obtain polyacrylic acid/graphene hydrogel. The polyacrylic acid/graphene hydrogel is immersed in a conductive polymer monomer solution with a concentration of 0.01-100 mM, and incubate with shaking for 2-12 hours, added a certain quality of initiator, sealed the system, controlled the temperature to 0-30 degrees C, incubated with shaking for 5-24 hours. The obtained product is soaked and washed in water to remove excess impurities to obtain polyacrylic acid/graphene/conductive polymer hydrogel, that is, polyacrylic acid composite hydrogel. USE - Method for preparing polyacrylic acid composite hydrogel. ADVANTAGE - The method is simple to perform in cost-effective manner, has good conductivity, and widely used in the fields of electronic devices, sensors and conductive materials.