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PANI包覆单一铁氧体结构和吸波性能研究

发表时间:2008-04-15  浏览量:1641  下载量:555
全部作者: 李貌,方庆清,王维娜,熊为华,周军,王胜男,阎庆胜
作者单位: 安徽大学物理与材料科学学院
摘 要: 本文采用原位复合法制备了导电聚苯胺与铁氧体的复合颗粒,并利用透射电子显微镜(TEM)、X射线衍射仪(XRD)和傅里叶红外光谱仪(FT-IR)等分析手段测量了复合颗粒的形貌、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/cm2。
关 键 词: 材料学;吸波材料;聚苯胺/铁氧体;吸波性能;核/壳结构
Title: Microstructure and microwave absorbing properties of PANI/ferrite composite materials
Author: LI Mao, FANG Qingqing, WANG Weina, XIONG Weihua,ZHOU Jun, WANG Shengnan, YAN Qingsheng
Organization: School of Physics and Materials Science, Anhui University
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) were used to observe and measure the morphology, microstructure and properties. The absorption properties were measured using a vector network analyzer in frequency rang of 0.5~20 GHz. The experiment results showed that the composites materials with core/shell structure exhibits excellent microwave absorbing properties. When 15wt% Li0.45Zn0.1Fe2.45O4 was incorporated into PANI, the microware absorbing properties of composite particles were the best. The peak value of absorption quantities was 26.1 dB and -8 dB bandwidth reached 5 GHz, and the area density was the least 0.28 g/cm2.
Key words: materials science; absorbing materials; PANI/ferrite; absorbing properties; core/shell structure
发表期数: 2008年8月第7期
引用格式: 李貌,方庆清,王维娜,等. PANI包覆单一铁氧体结构和吸波性能研究[J]. 中国科技论文在线精品论文,2008,1(7):740-744.
 
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