PREPARATION AND ELECTROMAGNETIC PROPERTIES OF BaFe12O19–Ni0.8Zn0.2Fe2O4/POLYPYRROLE COMPOSITE FILM

다국어 초록 (Multilingual Abstract)

BaFe12O19–Ni0.8Zn0.2Fe2O4/Polypyrrole composite film [including three doping acids, dodecyl benzene sulfonic acid (DBSA), camphor sulfonic acid (CSA) and p-toluenesulfonic acid (TSA)] was prepared by sol–gel method and in situ chemical oxidative polymerization. The structure, morphologies, conductivities, magnetic properties and microwave absorption properties of the composite film were characterized by using XRD, FESEM, FTIR, Four-probe tester, VSM and Vector network analyzer. The results show that the conductivity of acid-doped Polypyrrole composite film is higher than that of pure Polypyrrole composite film. The saturation magnetization (Ms) and remanent magnetization (Mr) of the composite film are lower than those of BaFe12O19–Ni0.8Zn0.2Fe2O4 film. However, the electromagnetic properties are in the contrary. The microwave absorption properties of the composite film are much better than those of BaFe12O19–Ni0.8Zn0.2Fe2O4, which mainly depends on the increasing of the dielectric loss. A minimum reflection loss of the DBSA-doped composite film is −17.6 dB at 9.3 GHz with the thickness at 3.0 mm.

참고문헌 (Reference)

1 S. M. Masoudpanah, 324 : 2239-, 2012

2 X. Bai, 115 : 11673-, 2011

3 Z. Spitalsky, 35 : 357-, 2010

4 J. Jiang, 456 : 300-, 2007

5 H. Yuvaraj, 44 : 637-, 2008

6 J. Zhang, 113 : 1662-, 2009

7 A. Madani, 650 : 176-, 2011

8 M. Ferenets, 515 : 5324-, 2007

9 C. Yang, 159 : 2056-, 2009

10 A. Joshi, 156 : 938-, 2011

11 L. AI-Mashat, 134 : 826-, 2008

12 C. R. Zhang, 159 : 1008-, 2009

13 C. M. Li, 198 : 474-, 2005

14 S. Yang, 66 : 121-, 2003

15 D. Roy, 321 : 11-, 2009

16 G. H. Mu, 254 : 2483-, 2008

17 N. Chen, 139 : 256-, 2007

18 Y. Wang, 324 : 3024-, 2012

19 J. P. Wang, 208 : 138-, 2012

20 G. W. Lu, 47 : 1778-, 2006

21 B. Ding, 62 : 132-, 2012

22 A. C. Sonavane, 55 : 2344-, 2010

23 C. O. Yoon, 99 : 201-, 1999

24 D. Muller, 161 : 106-, 2011

25 P. C. Wang, 72 : 311-, 2012

26 M.-K. Song, 141 : 315-, 2004

27 Y. B. Li, 509 : 4104-, 2011

28 H. Y. Mi, 256 : 2284-, 2010

29 M. R. Karim, 18 : 916-, 2007

30 Y. B. Li, 11 : 1319-, 2009

31 J. Y. Lee, 74 : 103-, 1995

32 L. T. Qu, 42 : 3170-, 2004

33 L. C. Li, 321 : 265-, 2008

34 Z. F. He, 161 : 420-, 2011

35 Z. H. Peng, 372 : 3714-, 2008

36 Sook Wai Phang, "Microwave absorption behaviors of polyaniline nanocomposites containing TiO2 nanoparticles" 한국물리학회 8 (8): 391-394, 2008