Electromagnetic waves are energy carriers formed by combining electric and magnetic fields. Today, shielding methods have been developed to protect against these electromagnetic fields created by the growing technology causing Electromagnetic interference (EMI). In this study, one of the most widely used plant-based fibers, cotton fabric, was chosen to prepare a conductive and magnetic natural composite material to shield against EMI. For this purpose, cotton fabrics were chemically and physically modified in two consecutive steps. In the first step, the conductive PAn/Cu/cotton composites were prepared by in situ oxidative polymerization of aniline in aqueous acidic media using ammonium persulfate (APS) oxidant and Cu(I) ions in the presence of cotton fabrics, resulting in the coating of both conductive polyaniline (PAn) and reduced Cu particles on the surfaces. In the second step, the physical deposition of individually synthesized magnetic Fe3O4 particles on PAn/Cu/Cotton composites was also achieved. The imparted electrical, structural, wettability, and morphological properties were investigated by surface resistivity measurement and SEM techniques, respectively. Finally, the prepared composites' electromagnetic wave shielding properties (EMSE) were examined in the range of 15 MHz-3 GHz, and it was observed that the composite with the highest conductivity provided 60% absorption-based protection.
Electromagnetic shielding effectiveness magnetic ferrite particles polyaniline copper particles
The authors declare that there is no conflict of interest between the authors.
TÜBİTAK
TÜBİTAK 2209
TÜBİTAK 2209-A University Students Research Projects Support Program financially supports this study. The authors thank TÜBİTAK for their support.
TÜBİTAK 2209
Birincil Dil | İngilizce |
---|---|
Konular | Makromoleküler Malzemeler, Polimerizasyon Mekanizmaları, Makromoleküler ve Malzeme Kimyası (Diğer) |
Bölüm | Research Articles |
Yazarlar | |
Proje Numarası | TÜBİTAK 2209 |
Yayımlanma Tarihi | |
Gönderilme Tarihi | 13 Aralık 2023 |
Kabul Tarihi | 16 Ocak 2024 |
Yayımlandığı Sayı | Yıl 2024 Cilt: 66 Sayı: 1 |
Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering
This work is licensed under a Creative Commons Attribution 4.0 International License.