采用水热法制备了铜钴镍铁氧体粉末，并以原位聚合法制备了铜钴镍铁氧体/聚苯胺复合物，利用FESEM、XRD、FT-IR、TG和矢量网络分析仪对其结构和吸波性能进行研究。结果表明，经聚苯胺包覆后的铜钴镍铁氧体表面形貌由球形变为珊瑚状；利用盐酸掺杂后的聚苯胺有部分结晶，且铜钴镍铁氧体离子与聚苯胺分子之间存在化学键合作用；与聚苯胺相比，复合材料在2.0~18.0 GHz范围具有优异的吸波性能，在厚度为2.0 mm时，铜钴镍铁氧体质量分数为30%时的复合材料有最大反射损耗，达到-26.81 dB，-17 dB带宽大于5 GHz，且随着厚度的增加，反射损耗值会向低频方向移动。

Copper-cobalt-nickel ferrite powders are prepared through hydrothermal method and then copper-cobalt-nickel ferrite/polyaniline composites are prepared via in-situ polymerization.The structure and wave absorbing properties of the composites are investigated by means of FESEM,XRD,FT-IR,TG and Vector network analyzer.It is indicated that the surface morphology of copper-cobalt-nickel ferrite changes from spherical into coral after being coated with polyaniline.Polyaniline doped with hydrochloric acid has part of crystalline.There is a chemical bond interaction between copper-cobalt-nickel ferrite ion and polyaniline molecular.Compared with polyaniline,the composite material has excellent microwave absorbing properties in the range of 2.0 to 18.0 GHz.At a thickness of 2.0 mm,the composite material with a cobalt-nickel ferrite content of 30% has a maximum reflection loss of -26.81 dB.The -17 dB bandwidth is greater than 5 GHz.As the thickness of material increases,the reflection loss value will shift toward the low frequency direction.

孙洁(1992-),女,硕士研究生,主要从事磁性材料的研究与应用,594736488@qq.com。