Preparation and Electromagnetic Properties of CIP/ZnO Composites

Abstract:

CIP/ZnO electromagnetic functional composites with core-shell structure were prepared by chemical precipitation method, and then the morphology, structure and electromagnetic properties in 2-18GHz were characterized by X-ray diffraction, scanning electron microscopy and vector network analyzer, respectively. In process by controlling the component ratio between core and shell, it has been found that the more ZnO particles were coated on the CIP surface, the smaller electromagnetic parameters become. Based with the Electromagnetic Wave Absorption (EMWA) Theory, the composites could prepare EMWA building coating by monolayer design, the theoretical simulation results show that the minimum RL of CIP/ZnO composites is-10.25dB, better than pure CIP particles, exhibiting excellent EMWA properties in 2-18GHz. The magnetic loss of CIP and the dielectric loss of ZnO were the main mechanisms of EMWA for the CIP/ZnO composites, which could be used for electromagnetic radiation protection.

• Periodical: Materials Science Forum (Volume 852)
• Pages: 560-564
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.852.560
• Online since: April 2016
• Authors: Ming Ming Wang, Zhong Lun Zhang, Wan Jun Hao, Zhi Jun Xin, Guo Yan Hou
• Keywords: Absorbing Reagent, Core-Shell Structure, Covering Amount, Electromagnetic Properties

References

[1] S.H. Liu, J.M. Liu and X.L. Dong: Electromagnetic wave shielding and absorbing materials (Chemical Industry Press, Beijing2007), pp.20-40 (In Chinese).

[2] Adam J. Douglas, Davis Lionel E, etc: IEEE Trans. on Microwave Theory and Technology Vol. 50(2002), p.721.

[3] X.F. Zhang, X.L. Dong, H. Huang, B. Lv, J.P. Lei, C.J. Choi: J. Phys. D: Appl. Phys. 40(2007)5383-5387.

[4] S.H. Wang, F. Wen and W.J. Hao: Environmental Science and Technology Vol. 29(2006), pp.96-98(In Chinese).

[5] H. Bayrakdar: J. Magn. Magn. Mater. 323(2011)1882-1885.

[6] W.J. Hao: Science and technology of foreign building materials Vol. 25 (2004), pp.74-76(In Chinese).

[7] T. simizu: Absorb and shield of electromagnetic wave, (economic and technological`s book, Japan1989) , pp.150-180.

[8] L.D. Liu, Y.P. Duan, S.H. Liu, L.Y. Chen and J.B. Guo. J: Magn. Magn. Mater Vol. 332(2010), pp.1736-1740.

[9] Y.B. Feng, T. Qiu, C.Y. Shen and X.Y. Li: IEEE Trans. Magn. Vol. 42 (2006), pp.363-367.

[10] Y.C. Qing, W.C. Zhou, F. Luo and D.M. Zhu: J. Magn. Magn. Mater Vol. 321(2009), pp.25-27.

[11] X.G. Liu, D.Y. Geng, H. Meng, P.J. Shang, Z.D. Zhang. Applied Physics Letters 92(2008)17311171.

[12] Zhou, C . et al. 2012. Journal of Magnetism and Magnetic Materials 324: 1720-1725.

[13] Bala, H. et al. 2009. Applied Surface Science 255: 4050-4055.

[14] Chen, W. 2011. Synthesis of ZnO coated ferrite composite material and their electromagnetic properties. Tianjin: Tianjin Universty.

[15] Qing, Y.C. et al. 2011. Physica B 406: 777-780.

[16] Toru, M. et al. 2004.J. Magn. Magn. Mater. 281 : 195-205.

[17] Jamal. Ben. Youssef, Christian. Brosseau. Physical Review B 74(2006)214413.