Chemical Journal of Chinese Universities ›› 2018, Vol. 39 ›› Issue (1): 185-192.doi: 10.7503/cjcu20170318

• Polymer Chemistry • Previous Articles    

Synthesis and Microwave Absorption Performance of Fe3O4@PPy@PANI Composites

ZHANG Long, WAN Xiaona, DUAN Wenjing, QIU Hu, HOU Jieqiong, WANG Xiaorui, LI Hui, DU Xueyan*()   

  1. School of Materials & Science, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
  • Received:2017-05-22 Online:2018-01-10 Published:2017-12-20
  • Contact: DU Xueyan E-mail:duxy@lut.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.51363015), the Open Project Program of Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, China(No.SKLAB02015009) and the Zhejiang Provincial Natural Science Foundation, China(No.LQ15E030001)

Abstract:

Polypyrrole(PPy) was used to modify the surface of Fe3O4 nanoparticles which was prepared by solvothermal method. Polyaniline(PANI) was used to control the electromagnetic component of Fe3O4@PPy composites, and then Fe3O4@PPy@PANI composites with core-shell structure were successfully prepared. Modifying Fe3O4 nanoparticles with PPy made PANI easily coated on the surface of magnetic nano-particles, and the reasons for this phenomenon were discussed in this paper. The results of the electromagnetic performance analysis show that the minimum reflection loss(RLmin) reaches -39.2 dB when the mass ratio of aniline(An) to Fe3O4 @PPy is 1∶4. The bandwidth of reflection loss less than -10 dB is 4.6 GHz when the mass ratio of An to Fe3O4 @PPy is 1∶2. The proportion of electromagnetic components have a greater impact on the microwave absorbing properties, which are also described in this article.

Key words: Solvothermal method, Core-shell structure, Microwave absorbing material, Conductive polymer, Fe3O4 nanoparticles, Polypyrrole, Polyaniline

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