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Application of MWNT-added glass fabric/epoxy composites to electromagnetic wave shielding enclosures

机译：添加MWNT的玻璃纤维布/环氧树脂复合材料在电磁波屏蔽罩中的应用

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摘要

As the structures of high performance electronic equipments and devices become increasingly more complex, electromagnetic interference (EMI) and compatibility (EMC) have emerged as key issues with respect to commercial and military purposes. Accordingly, sensitive electrical devices and densely packed systems of automobiles, airplanes, and display fields need to be protected from electromagnetic waves. In this study, glass fabric/epoxy composites containing conductive multi-walled carbon nanotubes (MWNT) as electrical shielding materials were fabricated and the electrical properties of the composites were measured using an impedance analyzer. The frequency band of interest is from 300 MHz to 1 GHz. The shielding performances of the composite plates and composite shielding enclosures were predicted using an electromagnetic wave 3-D simulation tool, CST Microwave Studio. Most of the simulated results for composite shielding enclosures had the shielding capacities of more than 90% in the frequency range of interest.
机译：随着高性能电子设备的结构变得越来越复杂，电磁干扰（EMI）和兼容性（EMC）已经成为商业和军事用途的关键问题。因此，需要保护敏感的电气设备以及汽车，飞机和显示器领域的密集包装系统免受电磁波的影响。在这项研究中，玻璃纤维织物/环氧树脂复合材料包含导电多壁碳纳米管（MWNT）作为电屏蔽材料，并使用阻抗分析仪测量了复合材料的电性能。感兴趣的频带是从300 MHz到1 GHz。使用电磁波3-D模拟工具CST Microwave Studio预测了复合板和复合屏蔽罩的屏蔽性能。复合屏蔽罩的大多数模拟结果在目标频率范围内的屏蔽能力均超过90％。

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