CAJ | 학술논문

采用超声场下原位聚合法制备了Ba0.6Sr0.4-TiO3/PANI复合材料。其结构、形貌和电磁性能分别采用X射线衍射仪（XRD）、扫描电镜（SEM）和HP8510网络矢量分析仪进行了研究。结果表明,HCl掺杂后的PANI是部分结晶的。Ba0.6Sr0.4TiO3与PANI分子链之间存在某些相互作用。与PANI相比,在8.2～12GHz频率范围内,Ba0.6Sr0.4TiO3/PA-NI复合物的ε′值和ε″值均较大。在9.8～12.4GHz的频率范围内,Ba0.6Sr0.4TiO3/PANI复合物的tanδε值大于PANI的tanδε值。Ba0.6Sr0.4TiO3/PANI复合材料具有较好的微波吸收性能,最大损耗为-14dB,-10dB带宽超过了5GHz。
채용초성장하원위취합법제비료Ba0.6Sr0.4-TiO3/PANI복합재료。기결구、형모화전자성능분별채용X사선연사의（XRD）、소묘전경（SEM）화HP8510망락시량분석의진행료연구。결과표명,HCl참잡후적PANI시부분결정적。Ba0.6Sr0.4TiO3여PANI분자련지간존재모사상호작용。여PANI상비,재8.2～12GHz빈솔범위내,Ba0.6Sr0.4TiO3/PA-NI복합물적ε′치화ε″치균교대。재9.8～12.4GHz적빈솔범위내,Ba0.6Sr0.4TiO3/PANI복합물적tanδε치대우PANI적tanδε치。Ba0.6Sr0.4TiO3/PANI복합재료구유교호적미파흡수성능,최대손모위-14dB,-10dB대관초과료5GHz。
The Ba0.6Sr0.4TiO3/polyaniline composite was prepared by in situ polymerization method under the ultrasonic field.The structural characteristics,morphology and electromagnetic properties of the composites were analyzed by X-ray diffraction（XRD）,scanning electron microscope（SEM） and HP8510 network analyzer,respectively.The results indicated that HCl doped polyaniline had some degree of crystallinity.There was some interaction between the Ba0.6Sr0.4TiO3 particles and polyaniline chains.The imaginary and real parts of complex permittivity of the Ba0.6Sr0.4TiO3/polyaniline composite were higher than those of polyaniline from 8.2 to 12GHz.The dielectric loss tangent of Ba0.6Sr0.4TiO3/polyaniline composite was higher than that of polyaniline from 9.8 to 12.4GHz.The composite showed better electromagnetic wave absorbing property,with a minimum reflection loss of-14dB and a bandwidth of-10dB over the extended frequency range of 5GHz.