▎ 摘　　要

NOVELTY - A graphene oxide-based nanocomposite material comprises carboxylated graphene oxide, ureidopyrimidinone-polyethyleneimine microparticles bound by amide bonds, and 0-50 %mass water. USE - Graphene oxide-based nanocomposite material for adhesive tape (claimed) e.g. double faced adhesive tape. ADVANTAGE - The graphene oxide-based nanocomposite material has characteristics of adjustable chemical composition, and controllable mechanical and interface properties, and the material controls the moisture content and is utilized directly as adhesive tape, since the material is adhered to different substrates such as metal, plastic and glass without any external stimulation such as heating and light, and is pasted multiple times. The structural integrity is maintained during peeling and no residue is left on the adhered substrate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of graphene oxide-based nanocomposite material, which involves (1) activating the suspension of carboxylated graphene oxide using an activator to obtain activated carboxylated graphene oxide solution, (2) mixing activated carboxylated graphene oxide solution with solution of ureidopyrimidinone-polyethyleneimine particles and reacting, (3) removing the activator from solution after reaction, and (4) drying the solution obtained by removing the activator to control moisture.