122nd General Meeting of the KCS

Type Poster Presentation
Area Inorganic Chemistry
Room No. Grand Ballroom
Time 10월 19일 (금요일) 11:00~12:30
Code INOR.P-41
Subject EMI shielding of Titanium Carbide (Ti3C2Tx)- graphene-polymer thin film and Hydrophobic, flexible, freestanding Graphene-PVDF coated carbon fabric composite in S band region.
Authors Raagulan Kanthasamy, Braveenth Ramanaskanda1, Gyu Youn Chea1,*, Bo Mi Kim1, Leero Lee2
Chemistry, Wonkwang University, Korea
1Department of Chemistry, Wonkwang University, Korea
2Wonkwang University, Korea
Abstract MXene is a layered two-dimensional material like graphene is an attractive candidate for electromagnetic interference shielding. MXene and graphene based thin, flexible and low-density polyvinylidene fluoride(PVDF)- Polyacrylic acid (PAA) composite were prepared by coast effective spray coating and solvent casting method. The fabricated composite characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy(XPS), Raman measurement, energy dispersive X-ray (EDX) and scanning electron microscope (SEM). The fabricated composites displayed hydrophobic nature with uppermost 126° contact angle, -116 mN/m spreading Coefficient, 30 mN/m lowest work of adhesion and -43 mN/m wetting energy. The composites displayed excellent conductivity of 13.68 S/cm with sheet resistance of 3.1 Ω/sq. All the composite truncated intense weight lost up to 400°C and exhibited outstanding thermal stability. The MXene-graphene foam showed 41 dB of excellent EMI shielding at 2.97 GHz frequency range with 36 dB average EMI shielding and 1324.29 dBcm2g–1 absolute shielding effectiveness. Mono layer graphene coated carbon fabric exhibited exceptional absolute shielding effectiveness of 35370 dBcm2g–1 with shielding effectiveness of 453 dBcm2g-1 and 33 dB of maximum EMI shielding at 2.17 GHz. Hence, above results standpoint the applications such as handy electronics, mobile phones, aeronautics, air travels, radars, and military applications.
E-mail guksun92@hanmail.net