| PANI包覆单一铁氧体的结构和吸波性能 |
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| 引用本文： | 李貌,方庆清,熊为华,周军. PANI包覆单一铁氧体的结构和吸波性能[J]. 安徽大学学报(自然科学版), 2008, 32(4) |
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| 作者姓名： | 李貌 方庆清 熊为华 周军 |
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| 作者单位： | 安徽大学,物理与材料科学学院,安徽,合肥,230039;安徽大学,物理与材料科学学院,安徽,合肥,230039;安徽大学,物理与材料科学学院,安徽,合肥,230039;安徽大学,物理与材料科学学院,安徽,合肥,230039 |
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| 基金项目： | 安徽省重点科技基金，安徽省科学和技术带头人基金 |
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| 摘 要： | 采用原位复合法制备了聚苯胺包覆铁氧体的复合颗粒,并利用透射电子显微镜(TEM)、X射线衍射仪(XRD)和傅立叶红外光谱仪(FT-IR)等分析手段观测了复合颗粒的形貌、结构和性能.采用矢量网络分析仪在0.5~20 GHz频段内测试了材料的吸波性能.实验结果表明,具有核/壳结构的导电聚苯胺复合材料具有较好的吸波性能.当掺入质量分数为15%的Li0.45Zn0.1Fe2.45O4时,复合颗粒吸波性能最好,其-8 dB带宽达5 GHz,最大损耗为26.1 dB,且面密度最小为0.28 g.cm-2.
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| 关 键 词： | 聚苯胺/铁氧体复合材料 核/壳结构 吸波性能 |
Microstructure and microwave absorbing properties of PANI/ferrite composite materials |
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| LI Mao,FANG Qing-qing,XIONG Wei-hua,ZHOU Jun. Microstructure and microwave absorbing properties of PANI/ferrite composite materials[J]. Journal of Anhui University(Natural Sciences), 2008, 32(4) |
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| Authors: | LI Mao FANG Qing-qing XIONG Wei-hua ZHOU Jun |
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| Abstract: | PANI/Ferrite composite particles were prepared by in-situ composite method.Transmission electron microscope(TEM),X-ray diffraction(XRD) and Fourier transform infrared spectrometer(FT-IR) was used to observe and measure the morphology,microstructure and properties.The absorption properties were measured using a vector network analyzer in frequency rang of 0.5~20GHz.The experiment results showed that the composite materials with core/shell structure exhibits excellent microwave absorbing property.When 15wt% Li0.45Zn0.1Fe2.45O4 were incorporated into PANI,the composite particles' microwave absorbing properties were the best,the composite exhibited an absorption peak of 24.7dB and-8dB bandwidth of 5GHz,and the areal density was the least 0.28 g·cm-2. |
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| Keywords: | PANI/Ferrite composite particle core/shell microstructure absorbing property |
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