(BaTiO3+BaFe12O19)/PANI复合材料的电磁性能

材料研究学报

2012, Vol. 26

Issue (5): 489-494

研究论文

本期目录 | 过刊浏览

(BaTiO₃+BaFe₁₂O₁₉)/PANI复合材料的电磁性能

何倩, 黄英, 王娜, 丁晓, 姚文惠

空间应用物理与化学教育部重点实验室西北工业大学理学院应用化学系西安 710129

Electromagnetic Properties of (BaTiO₃+BaFe₁₂O₁₉)/PANI Composites

HE Qian, HUANG Ying, WANG Na, DING Xiao, YAO Wenhui

The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, the Apartment of Applied Chemistry, School of Science, Northwestern Polytechnical University, Xi’an 710129

引用本文:

何倩黄英王娜丁晓姚文惠. (BaTiO₃+BaFe₁₂O₁₉)/PANI复合材料的电磁性能[J]. 材料研究学报, 2012, 26(5): 489-494.
HE Qian HUANG Ying WANG Na DING Xiao YAO Wenhui. Electromagnetic Properties of (BaTiO₃+BaFe₁₂O₁₉)/PANI Composites[J]. Chinese Journal of Materials Research, 2012, 26(5): 489-494.

全文: PDF(1107 KB)

摘要:

用溶胶--凝胶法制得钛酸钡(BaTiO₃)和M型钡铁氧体(BaFe₁₂O₁₉), 然后用原位聚合法制备了(BaTiO₃+BaFe₁₂O₁₉)/聚苯胺(PANI)复合粉体。用X射线衍射仪(XRD)、傅立叶变换红外光谱仪(FTIR)、透射电镜(TEM)、四探针、振动样品磁强计(VSM)、和矢量网络分析仪等手段表征了样品微粒的结构、形貌和电磁性能。结果表明:(BaTiO₃+BaFe₁₂O₁₉)/PANI复合材料的饱和磁化强度M_S和电导率随苯胺含量的增加分别减小和增大,微波吸收强度随PANI含量增加而增大, 吸收强度最大达-27.73 dB, 吸收频率向两极(高频和低频)方向移动,其红外吸收性能明显增强。

关键词 ：复合材料, 钛酸钡, M型钡铁氧体, 聚苯胺, 原位聚合, 电磁性能

Abstract：

The nanocomposites of BaTiO3 and BaFe12O19 were prepared by sol-gel process, and the (BaTiO3+BaFe12O19)/PANI was prepared by in situ polymerization method. The structure, morphologies and electromagnetic properties of the samples were characterized by means of powder X-ray diffractometer (XRD), Fourier transform infrared (FTIR) spectrometer, transmission electron microscope (TEM), scanning electron microscope (SEM), four-point probe instrument(SDY-4) and vibrating sample magnetometer (VSM). The results show that with the increasing of PANI contents, the magnetization of the composites decreases, and the electrical conductivity increases, the microwave reflectivity absorption strength increase, maximum reflection loss is −27.73 dB, the absorption frequency shift to two-level (high-frequency and low-frequency) direction, and the infrared absorption performance increases.

Key words： composites BaTiO3 BaFe12O19 polyaniline in situ polymerization electromagnetic

收稿日期: 2012-08-06

ZTFLH:

TB332

基金资助:

西北工业大学研究生创业种子基金Z2012166、航天科技创新基金NBXT0002、航天支撑技术基金NBXW0001资助项目。

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https://www.cjmr.org/CN/ 或 https://www.cjmr.org/CN/Y2012/V26/I5/489

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