BaTiO3/NiFe2O4/PANI三元纳米复合材料的制备及吸波性能研究

左悦, 成明亮, 张康, 薄振婷, 董如林*

化工新型材料 ›› 2019, Vol. 47 ›› Issue (7) : 125 -129.

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化工新型材料 ›› 2019, Vol. 47 ›› Issue (7) : 125-129.
科学研究

BaTiO3/NiFe2O4/PANI三元纳米复合材料的制备及吸波性能研究

    左悦, 成明亮, 张康, 薄振婷, 董如林*
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Preparation of BaTiO3/NiFe2O4/PANI ternary nanocomposite and the microwave absorption property

  • Zuo Yue, Cheng Mingliang, Zhang Kang, Bo Zhenting, Dong Rulin
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摘要

通过溶剂热法与溶胶-凝胶法制备出钛酸钡/铁酸镍(BaTiO3/NiFe2O4)二元纳米复合材料,将BaTiO3/NiFe2O4与苯胺进行复合,用过硫酸钾氧化得到钛酸钡/铁酸镍/聚苯胺(BaTiO3/NiFe2O4/PANI)三元纳米复合材料。利用X射线衍射仪、傅里叶变换红外光谱仪、高分辨率透射电子显微镜对三元纳米复合材料的组分、形貌与微观结构进行表征。利用矢量网络分析仪对三元纳米复合材料的电磁参数进行测试。实验结果表明,当BaTiO3/NiFe2O4纳米复合材料与PANI的质量比达到1∶1时,制备的三元纳米复合材料样品表现出良好的反射损失特性,在6.7GHz处最小反射损失为-40.3dB,此时材料厚度只有4.5mm,且反射损失低于-10dB的有效频率在5.4~8.4GHz。

Abstract

BaTiO3/NiFe2O4 composite was synthesized by hydrothermal and sol-gel method,which was mixed with aniline and then oxidized by potassium persulfate to obtain BaTiO3/NiFe2O4/PANI tenary composite.The chemical composition,phase structure and morphology were analyzed by XRD,FT-IR and TEM while electromagnetic parameters were investigated by VNA.The results indicated that the mass ratio of PANI to BaTiO3/NiFe2O4 composite reached 1∶1,the sample showed remarkable reflection loss characteristics,where strong reflection loss (-40.3dB at 6.7GHz),wide response bandwidth (5.4~8.4GHz over -10dB),and thin matched thickness(4.5mm) can be achieved.

关键词

钛酸钡 / 镍铁氧体 / 聚苯胺 / 吸收性能

Key words

barium titanate / nickel ferrite / PANI / microwave absorption porperty

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BaTiO3/NiFe2O4/PANI三元纳米复合材料的制备及吸波性能研究[J]. 化工新型材料, 2019, 47(7): 125-129 DOI:

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