Lignin Based Flexible Electromagnetic Shielding PU Synergized with Graphite

Lightweight Epoxy/Cotton Fiber-Based Nanocomposites with Carbon and Fe3O4 for Electromagnetic Interference Shielding

“…Being one of the rapidly increasing pollutions induced by the inventions of advanced electronic information technology, electromagnetic (EM) pollution is becoming a potential serious hazard to human beings and adjacent precision electronic equipment. 1 − 5 To maximally eliminate or reduce the damage of such EM pollutions, novel electromagnetic interference (EMI) shielding materials, such as electrically conductive polymer composites (CPCs), 6 − 12 intrinsically conducting polymers (ICP), MXenes, 13 − 17 and textile or paper-shaped materials, have been successively developed in the past decade. 8 , 18 , 19 Compared with traditional metal EMI shielding materials, the above EMI shielding protection categories have the advantages of lightweight, corrosion resistance, and flexible processability.…”

“…Being one of the rapidly increasing pollutions induced by the inventions of advanced electronic information technology, electromagnetic (EM) pollution is becoming a potential serious hazard to human beings and adjacent precision electronic equipment. − To maximally eliminate or reduce the damage of such EM pollutions, novel electromagnetic interference (EMI) shielding materials, such as electrically conductive polymer composites (CPCs), − intrinsically conducting polymers (ICP), MXenes, − and textile or paper-shaped materials, have been successively developed in the past decade. ,, Compared with traditional metal EMI shielding materials, the above EMI shielding protection categories have the advantages of lightweight, corrosion resistance, and flexible processability. ,− Among them, carbon-based electroconductive papers arise promisingly due to their superior features, such as low cost, balanced mechanical properties, easy formability, and excellent service condition adaptability. ,,, Using renewable biomass as an applicable component in CPCs is one of the most promising alternatives, with respect to the green ecological development tendency and the current requirements for the fabrication of multifunctional EMI shields. ,,, …”

“…According to previous reports, filter papers were applied as templates for EMI shielding purposes, but they usually have a large-scale processing limitation. , The use of cellulose fibers in composites is a promising direction for the production of lightweight EMI shielding materials. ,, In this study, a facile method, similar to the traditional wet-papermaking process, was adopted to fabricate the lightweight cellulose fiber-based electroconductive papers, in which CNTs or GNPs were used as conductive fillers. To avoid the negative transmitted effects of the conductive papers, epoxy was further used to fill the small pores around the anisotropically distributed cellulose fibers.…”