PANI/BaEr_(0.3)Fe_(11.7)O_(19)复合材料的制备及吸波性能  

Preparation and microwave absorbing property of PANI/BaEr_(0.3)Fe_(11.7)O_(19) composite

作　　者：王二永[1,2] 罗驹华[2] 

机构地区：[1]常州大学材料科学与工程学院,江苏常州213164 [2]盐城工学院材料工程学院,江苏盐城224051

出　　处：《化工进展》2014年第1期155-158,共4页Chemical Industry and Engineering Progress

基　　金：江苏省教育厅重大基础研究项目(10KJA430054)

摘　　要：利用溶胶-凝胶法合成了铒掺杂钡铁氧体BaEr0.3Fe11.7O19,然后以合成的铁氧体和苯胺为原料用原位聚合法合成了PANI/BaEr0.3Fe11.7O19复合材料。采用X射线衍射仪、扫描电子显微镜和矢量网络分析仪表征了复合微粒的结构、形貌和电磁性能。结果表明,复合材料为球形,粒径小于100 nm。PANI/BaEr0.3Fe11.7O19匹配厚度为3.0 mm的吸收峰值位于12 GHz,反射率42 dB;10 dB带宽为10~15.5 GHz,带宽为5.5 GHz。Er-doped barium ferrites,BaEr0.3Fe11.7O19,was synthesized through a sol-gel method. PANI/BaEr0.3Fe11.7O19 composite was prepared through an in-situ polymerization with as-synthesized ferrite and aniline as raw materials. The structure,morphology and electromagnetic property of composite were characterized by X-ray diffraction,scanning electron microscopy and vector network analyzer. The results showed that the composite material was spherical with particle size less than 100 nm. When matching thickness was 3mm,the absorption peak position and the reflectivity of PANI/BaEr0.3Fe11.7O19 were 12 GHz and 42 dB,respectively. The bandwidth of 10 dB was 10—15.5 GHz,and bandwidth was 5.5 GHz.

关 键 词：粉体 聚合 复合材料 纳米材料 

分 类 号：O614[理学—无机化学] TQ586.1[理学—化学]