Fabrication of silver/polyaniline/aminated graphene oxide coated textiles for electromagnetic interference shielding application within the different bands of frequency

Abstract

The interference and pollution caused by electromagnetic radiation have become serious concerns due to the advancements in telecommunications and electronic technology. Highly efficient electromagnetic interference (EMI) shielding materials are thus urgently needed. The primary purpose of this research is to design silver/polyaniline/aminated graphene oxide based EMI shielding textiles over a wide frequency range to protect humans from harmful electromagnetic radiation. For this, layer by layer strategy was adapted to develop conductive textiles for remarkable EMI shielding performance in a wide range of frequency. Electroless plating of silver was performed on polyaniline-based aminated graphene oxide (AGO) fabric to achieve a multilayered structure. Our shielding effectiveness (SE) findings demonstrate that these modified fabrics provide excellent EMI shielding efficiency across multiple frequency bands, including UHF, L-band, S-band, C-band, and X-band. The modified fabric showed EMI SE greater than 40 dB in all bands of frequency and it is greater than the commercial requirement. Moreover, these fabrics are antibacterial and hydrophobic in nature and the greatest antibacterial activity was exhibited by silver/polyaniline/aminated graphene oxide fabric about 97 % and 99% against E.coli and S. aureus respectively. These modified fabrics have the potential to significantly reduce electromagnetic radiation pollution and protect human life owing to their exceptional EMI shielding properties.