高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (10): 1924.

• 研究论文 • 上一篇    下一篇

PAni-Co0.5Zn0.5Nd0.05Fe1.95O4纳米复合材料的制备及电磁损耗

马瑞廷, 赵海涛, 张罡   

  1. 沈阳理工大学材料科学与工程学院, 沈阳 110168
  • 收稿日期:2010-04-07 出版日期:2010-10-10 发布日期:2010-10-10
  • 通讯作者: 马瑞廷, 男, 博士, 副教授, 主要从事无机-有机复合材料电磁及微波吸收性能的研究. E-mail: mrt-1118@163.com
  • 基金资助:

    辽宁省博士启动基金(批准号: 18198741302035225103)资助.

Preparation and Electromagnetic Loss of PAni-Co0.5Zn0.5Nd0.05Fe1.95O4 Nanocomposite

MA Rui-Ting*, ZHAO Hai-Tao, ZHANG Gang   

  1. School of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110168, China
  • Received:2010-04-07 Online:2010-10-10 Published:2010-10-10
  • Contact: MA Rui-Ting. E-mail: mrt-1118@163.com
  • Supported by:

    辽宁省博士启动基金(批准号: 18198741302035225103)资助.

摘要: 采用原位聚合法制备了平均粒径约为80 nm的聚苯胺(Polyaniline, PAni)-Co0.5Zn0.5Nd0.05Fe1.95O4纳米复合材料. 采用X射线衍射仪(XRD)、透射电子显微镜(TEM)和傅里叶变换红外光谱(FTIR)等检测技术对其结构、形貌、电磁及微波吸收性能进行了研究. 结果表明, 在12.4~18.0 GHz测试频率范围内, 复合材料的介电损耗角正切(tanε)在0.22~0.34之间, 磁损耗角正切(tanμ)在0.27~0.35之间. 在频率为9.5 GHz处, 反射损耗达到最大值-7.31×10-29 C·m, 频带宽为4.5 GHz.

关键词: 复合材料, PAni-Co0.5Zn0.5Nd0.05Fe1.95O4, 电磁损耗

Abstract: Polyaniline(PAni)-Co0.5Zn0.5Nd0.05Fe1.95O4 nanocomposite was synthesized by an in situ polymerization. The nanocomposites were characterized using X-ray diffraction(XRD), transmission electron microscopy(TEM) and Fourier transform infrared spectrometer(FTIR). The results of XRD and FTIR confirm the formation of PAni-Co0.5Zn0.5Nd0.05Fe1.95O4 nanocomposite. The average particle sizes of the pure PAni and PAni-Co0.5Zn0.5Nd0.05Fe1.95O4 composites are estimated to be about 60 and 80 nm by TEM, respectively.The complex permittivity (ε′- jε″) and complex permeability (μ′- jμ″) of the nanocomposites obtained were measured using vector network analyzer of HB8510B from 12.4 to 18.0 GHz. The results show that PAni-Co0.5Zn0.5Nd0.05Fe1.95O4 nanocomposite have both dieletric loss and magnetic loss. The dielectric loss tangent(tanε, ε=ε"/ε′) and magnetic loss tangent(tanμ, μ=μ"/μ′) values of PAni-Co0.5Zn0.5Nd0.05Fe1.95O4 nanocomposite are in the range of 0.22—0.34 and 0.27—0.35, respectively. The maximum reflection loss of the PAni-Co0.5Zn0.5Nd0.05Fe1.95O4 nanocomposite is about -7.31×10-29 C·m at 9.0 GHz with a bandwidth of 4.5 GHz (full frequency width at about a half of the peak response).

Key words: Composite, PAni-Co0.5Zn0.5Nd0.05Fe1.95O4, Electromagnetic loss

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