碳纳米管/三元乙丙橡胶复合材料吸波性能的研究  

Study on Microwave Absorbing Properties of Multi-walled Carbon Nanotubes/EPDM Composites Materials

作　　者：王志强[1] 张振军 范壮军[3] 罗国华[4] 魏飞[4] 周健生[3] 

机构地区：[1]哈尔滨工程大学基建处,哈尔滨150001 [2]中国运载火箭研究院二炮军代表室,北京100076 [3]哈尔滨工程大学材料科学与化学工程学院,哈尔滨150001 [4]清华大学化工系,北京100084

出　　处：《材料导报》2010年第14期26-28,共3页Materials Reports

基　　金：国家自然科学基金资助项目(20606020);哈尔滨工程大学基础研究(HEUFT07094);哈尔滨市创新人才资助项目(2007RFQXG028)

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。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.

关 键 词：碳纳米管 三元乙丙橡胶 电磁波吸收 

分 类 号：TQ336.8[化学工程—橡胶工业]