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通过溶胶凝胶-自蔓延燃烧法和原位聚合法分别制备纳米钡铁氧体(BaFe_(12)O_(19))和聚1-萘胺/钡铁氧体(PNA/BaFe_(12)O_(19))复合材料,并研究了铁氧体含量对复合材料的结构、界面相互作用和磁性能的影响。采用XRD、SEM、TEM、FT-IR和VSM等方法对复合材料的结构、形貌和磁性能进行了表征。结果表明:成功合成了核-壳结构的PNA/BaFe_(12)O_(19)纳米复合材料;PNA包覆后,复合材料的饱和磁化强度(Ms)、剩余磁化强度(Mr)均明显减小,矫顽力(Hc)有所增大。随铁氧体含量的增加,Ms、Mr、Hc等磁性能参数均有一定程度的增大。
BaFe_ (12) O_ (19) and PNA / BaFe_ (12) O_ (19)) were prepared by sol-gel-self-propagating combustion and in situ polymerization respectively. (19)) composites, and studied the effect of ferrite content on the structure, interfacial interaction and magnetic properties of the composites. The structure, morphology and magnetic properties of the composites were characterized by XRD, SEM, TEM, FT-IR and VSM. The results show that the PNA / BaFe_ (12) O_ (19) nanocomposites with core-shell structure were successfully synthesized. The saturation magnetization (Ms) and remanent magnetization (Mr) , Coercivity (Hc) has increased. With the increase of ferrite content, the magnetic parameters such as Ms, Mr and Hc all increased to a certain extent.