Electromagnetic interference shielding properties of carbon nanotube buckypaper composites
作者： Jin Gyu Park , Jeffrey Louis , Qunfeng Cheng , Jianwen Bao , Jesse Smithyman
DOI: 10.1088/0957-4484/20/41/415702
关键词:
摘要: Preformed carbon nanotube thin films (10-20 microm), or buckypapers (BPs), consist of dense and entangled networks, which demonstrate high electrical conductivity provide potential lightweight electromagnetic interference (EMI) solutions for composite structures. Nanocomposite laminates consisting various proportions single-walled multi-walled nanotubes, having different conductivity, with stacking structures, were studied. Single-layer BP composites showed shielding effectiveness (SE) 20-60 dB, depending on the within a 2-18 GHz frequency range. The effects EMI SE performance laminate structures made BPs values epoxy polyethylene insulating layer sequences results also compared against predictions from modified model. predicted trends value dependence consistent experimental results, revealing that adjusting number layers appropriate arrangement conducting insulators can increase 45 dB to close 100 owing utilization double-shielding effect.
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