| 초록 |
The nonwoven carbon fabrics are an outstanding candidate for electromagnetic interference (EMI) shielding. The characterization of the composites has been done using energy-dispersive X-ray spectroscopy, X-ray diffraction, scanning electron microscope, X-ray photoelectron spectroscopy and Raman spectroscopy. The MXene coating on the fabric increased the electric conductivity and displayed excellent electric conductivity of 8.5 S/cm with sheet resistance of 6.5 Ω/sq. Inhibition of thermal degradation of the composite above 230 ℃. The water-repellent surface of the composite exhibited 123º of contact angle with spreading coefficient of −112.66 mN/m, work of adhesion 32.94 mN/m and wetting energy of −39.86 mN/m. The composite block 99.99 % of incident electromagnetic radiation and corresponding absolute shielding effect (SSE/t) is 8534.7 dB cm2g-1. The above properties urge the utilization in the area of aviation, portable electronics, aerospace, military and radars. |
