Akademik Veri Yönetim Sistemi
Internatinal Conference on Applied Physics and Mathematics (THEIIER-2025), Cairo, Mısır, 11 - 12 Ocak 2025, ss.47-52
This study investigates the influence of conductive yarn content on the electromagnetic shielding effectiveness
(EMSE) and surface resistivity of knitted fabrics. The fabrics, made with conductive core-spun yarns and 100% cotton yarns,
were produced using consistent knitting pattern types and yarn counts, allowing for a comparative analysis of the impact of
conductive material quantity. Results indicate a clear inverse relationship between surface resistivity and conductivity, with
fabrics containing higher amounts of conductive yarn demonstrating lower surface resistivity and superior shielding
performance. Notably, fabrics coded S10-46, S20-46, R10-45, R20-45, I10-49, and I20-49 exhibited significantly better
EMSE, particularly in the 0.1-0.6 GHz frequency range, where they performed better than their counterparts. However, a
gradual decline in EMSE was observed at higher frequencies, suggesting that metal conductive wires are more effective at
shielding electromagnetic radiation at lower frequencies. The shielding mechanisms of absorption and reflection were also
evaluated, with absorption consistently surpassing reflection across all fabric types in the 0.1-3 GHz range. These findings
highlight the critical role of conductive material quantity and fabric structure in optimizing EMSE for applications in
electromagnetic radiation shielding.