Runqing Liu, Lihai Yang, Luyao Wang, Yuanquan Yang
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An investigation on preparation and wave-absorbing properties of carbon nanotube/ferrite/polyaniline complexes
Conventional wave-absorbing materials effectively absorb electromagnetic waves in specific frequency bands and however cannot cope with interference and radiation in a wide frequency range. Therefore, materials with broadband wave-absorbing properties are of great significance for electromagnetic interference and radiation, protection of equipment, and human health. In this experiment, carbon nanotubes/nickel–zinc ferrite/polyaniline complex and carbon nanotubes/barium–zinc ferrite/polyaniline polymers were prepared by solution blending and in situ polymerization, respectively. The results show that the carbon nanotube/NiZn ferrite/polyaniline complexes has a good impedance matching absorption effect with a peak of − 34.3 dB at 3.68 GHz prepared by solution reaction method and with a maximum reflection loss of − 28.95 dB at 12.44 GHz by in situ polymerization method. Carbon nanotube/barium–zinc ferrite/polyaniline complexes were prepared by solution reaction and in situ polymerization methods, and the samples prepared by in situ polymerization had better absorption properties, with an effective absorption bandwidth up to 8.9 GHz (6.5–14.6 GHz and 16.1–16.8 GHz) and a reflection loss reaching a maximum of − 37.95 dB at 12.84 GHz.
期刊介绍:
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.