A Highly Flexible and Robust Electromagnetic Interference Shielding Nanocomposite Film Based on Graphene Nanoplate and Conjugated Polyelectrolyte Surfactant With Superior Folding Reliability
발표자
()
초록
내용
A highly flexible and robust electromagnetic interference (EMI) shielding nanocomposite film is prepared, and its mechanical, electrical, and EMI properties are investigated in this study. Conjugated polyelectrolyte (CPE) as a functional water-soluble surfactant is synthesized to enhance the dispersibility of graphene nanoplate (GNP) in the aqueous phase. Water-borne polyurethane (WPU) as a heterocyclic polymeric matrix is also prepared to improve folding reliability and mechanical properties. A series of EMI shielding films are produced by solution casting of a mixture of GNP, CPE, WPU, and cellulose nanofiber (CNF). The resulting films exhibit excellent mechanical properties, superior folding reliability, and outstanding EMI shielding performance. These are attributed to the well-defined, multi-layered structure of GNPs in the nanocomposite film, which results from the multiple interactions between GNP, CPE, WPU, and CNF.