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化工进展  2015 

聚苯胺/钴铁氧体电磁复合材料的制备及其性能

DOI: 10.16085/j.issn.1000-6613.2015.09.026, PP. 3374-3378

Keywords: 反向共沉淀法,聚苯胺,钴铁氧体,合成,复合材料,离子液体

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Abstract:

先采用反向共沉淀法制备了钴铁氧体(CoFe2O4)磁性纳米颗粒,并以此为核,基于离子液体(IL)环境下,以苯胺为单体,运用原位聚合和化学氧化聚合法制备得到了既具有电性能又具有磁性能的钴铁氧体/酸掺杂聚苯胺--PANI/CoFe2O4(IL)复合材料。通过透射电镜(TEM)、X射线衍射分析(XRD)、红外波谱分析(FT-IR)、振动样品磁强计(VSM)和四探针电导率仪等测试手段研究了该复合材料的结构和性质,结果表明本文实验条件下,制备得到的CoFe2O4具有单一的尖晶石型铁氧体结构,且分散性较好,IL存在的反应条件对其晶型没有影响;含相同量钴铁氧体(0.3gCoFe2O4)时,在IL和水相中制备的PANI/CoFe2O4复合材料的电导率分别为1.0S/cm和0.4S/cm,而饱和磁强度则分别为19.8emu/g和22.9emu/g。此外,IL下得到的复合材料表现出较好的电包磁结构。

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