Raagulan Kanthasamy, Braveenth Ramanaskanda, Lee Lee Ro, Lee Joonsik, Kim Bo Mi, Moon Jai Jung, Lee Sang Bok, Chai Kyu Yun
Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University, Iksan City 570-749, Korea.
Nanomaterials (Basel). 2019 Apr 2;9(4):519. doi: 10.3390/nano9040519.
MXenes, carbon nanotubes, and nanoparticles are attractive candidates for electromagnetic interference (EMI) shielding. The composites were prepared through a filtration technique and spray coating process. The functionalization of non-woven carbon fabric is an attractive strategy. The prepared composite was characterized using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX), and Raman spectroscopy. The MXene-oxidized carbon nanotube-sodium dodecyl sulfate composite (MXCS) exhibited 50.5 dB (99.999%), and the whole nanoparticle-based composite blocked 99.99% of the electromagnetic radiation. The functionalization increased the shielding by 15.4%. The composite possessed good thermal stability, and the maximum electric conductivity achieved was 12.5 Scm. Thus, the composite shows excellent potential applications towards the areas such as aeronautics, mobile phones, radars, and military.
MXenes、碳纳米管和纳米颗粒是电磁干扰（EMI）屏蔽的有吸引力的候选材料。这些复合材料是通过过滤技术和喷涂工艺制备的。非织造碳纤维的功能化是一种有吸引力的策略。使用X射线光电子能谱（XPS）、X射线衍射（XRD）、扫描电子显微镜（SEM）、能量色散X射线光谱（EDX）和拉曼光谱对制备的复合材料进行了表征。MXene-氧化碳纳米管-十二烷基硫酸钠复合材料（MXCS）表现出50.5 dB（99.999%）的屏蔽效能，并且整个基于纳米颗粒的复合材料阻挡了99.99%的电磁辐射。功能化使屏蔽效能提高了15.4%。该复合材料具有良好的热稳定性，实现的最大电导率为12.5 S/cm。因此，该复合材料在航空航天、手机、雷达和军事等领域显示出优异的潜在应用前景。
