[2PS-179]
Flexible Ionic Liquid–Functionalized Composite Film with Superior EMI Shielding, Thermal Conductivity and Mechanical Performance
발표자Ain Rimsha (Korea National University of Transportation)
연구책임자김성룡 (한국교통대학교)
Abstract
The growing integration of compact electronics increases the demand for lightweight, thermally conductive, and flexible electromagnetic interference (EMI) shielding materials. We developed composite films by non-covalently functionalizing reduced graphene oxide with hydrophilic ionic liquid 1-butyl-3-methylimidazolium bromide [BMIM][Br] and incorporating it into an aramid nanofiber (ANF) matrix via vacuum-assisted filtration. Ionic liquid enhanced dispersion and interfacial compatibility, promoting the formation of well-aligned, densely packed conductive networks. The resulting composite film exhibited improved EMI shielding, high thermal conductivity, excellent mechanical performance, and long-term stability under harsh environment, demonstrating their potential for high-performance flexible electronic applications. *This research was supported by a grant from the Academic Research Program of Korea National University of Transportation in 2025.