Lightweight, flexible rCEF@PPy/MXene for ultra-efficient EMI shielding felt with Joule heating performance

Lightweight, flexible and multifunctional characteristics have attracted widespread attention in recent years for electromagnetic interference (EMI) shielding materials in the field of portable electronics. In this work, conductive polymer PPy and MXene nanosheets were anchored on the surface of the recycled carbon felts fixed with ES fibers ([email protected]/MXene) to construct porous conductive networks, resulting in high conductivity, excellent EMI shielding property (60 dB) and electro-thermal conversion abilities. The [email protected]/MXene shows great potential for wearable devices and heat management, together with promoting the sustainable reuse of waste carbon fiber resources.