Lightweight and Robust Electromagnetic Interference (EMI) Shielding Nanocomposite Thin Films Based on Supramolecular Brick-and-mortar Conductive Structure
발표자
()
초록
내용
Lightweight Electromagnetic interference shielding (EMIS) nanocomposite thin films with exceptional mechanical robustness and excellent EMIS performance are prepared by utilizing the concept of the supramolecular brick-and-mortar conductive structure. To improve the dispersion of graphene nanoplatelet (GNP), both polymeric and small molecular surfactants (PS and SMS, respectively) with conjugated core and ionic side groups are synthesized. Additionally, a heterocyclic matrix (HM) is synthesized to serve as a binder between the brick-and-mortar components, while sustainable cellulose nanofiber (CNF) acts as a reinforcing agent. The EMIS thin films are prepared by blending GNP, PS (or SMS), CNF, and HM. Notably, the EMIS thin film containing SMS exhibits superior EMIS performance and mechanical properties compared to PS. These enhancements are attributed to the facilitated permeation of SMS between the stacked GNPs, leading to a more compact and well-aligned structure within the EMIS nanocomposite.