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中文摘要：
考察了碳纳米管的介电常数、磁导率以及碳纳米管／三元乙丙橡胶复合材料的电磁吸波性能。研究结果表明，碳纳米管介电常数值远大于磁导率值，且电损耗远大于磁损耗，说明碳纳米管是一种电损耗型吸波介质。通过弓形法测定了碳纳米管／三元乙丙橡胶复合材料在2～18GHz范围内的电磁波吸收性能，结果表明，复合材料在5～18GHz范围内具有较好的微波吸收性能。
英文摘要：
The coefficient of attenuation, impedance and loss tangents of multi-walled carbon nanotube, as well as microwave absorbing properties of CNTs/EPDM composite materials are investigated. The resutls show that the coefficient of attenuation is much larger than the value of impedance and loss tangents of muhi-walled carbon nanotube. Electric loss is higher than magnetic loss, and the microwave absorption can be mainly attributed to the electric loss rather than magnetic loss. The microwave absorbing properties of CNTs/EPDM composites materials are measured using a vector network analyzer in a range of 2418GHz. The results indicate CNTs/EPDM composites materials have better microwave absorbing properties in a range of 5-18GHz.
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