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
  • 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)


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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