中国物理B ›› 2019, Vol. 28 ›› Issue (10): 108103-108103.doi: 10.1088/1674-1056/ab4041

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Flexible rGO/Fe3O4 NPs/polyurethane film with excellent electromagnetic properties

Wei-Qi Yu(余维琪), Yi-Chen Qiu(邱怡宸), Hong-Jun Xiao(肖红君), Hai-Tao Yang(杨海涛), Ge-Ming Wang(王戈明)   

  1. 1 School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China;
    2 National Center for Nanoscience and Technology, Beijing 100190, China;
    3 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    4 Fujian Institute of Innovation, Chinese Academy of Sciences, Fozhou 350108, China
  • 收稿日期:2019-07-21 修回日期:2019-08-24 出版日期:2019-10-05 发布日期:2019-10-05
  • 通讯作者: Hong-Jun Xiao, Ge-Ming Wang E-mail:xiaohj@nanoctr.cn;wanggemingwit@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11274370, 51471185, and 11704288) and the National Key Research and Development Program of China (Grant Nos. 2016YFJC020013 and 2018FYA0305800).

Flexible rGO/Fe3O4 NPs/polyurethane film with excellent electromagnetic properties

Wei-Qi Yu(余维琪)1,2, Yi-Chen Qiu(邱怡宸)3, Hong-Jun Xiao(肖红君)2, Hai-Tao Yang(杨海涛)3,4, Ge-Ming Wang(王戈明)1   

  1. 1 School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China;
    2 National Center for Nanoscience and Technology, Beijing 100190, China;
    3 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    4 Fujian Institute of Innovation, Chinese Academy of Sciences, Fozhou 350108, China
  • Received:2019-07-21 Revised:2019-08-24 Online:2019-10-05 Published:2019-10-05
  • Contact: Hong-Jun Xiao, Ge-Ming Wang E-mail:xiaohj@nanoctr.cn;wanggemingwit@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11274370, 51471185, and 11704288) and the National Key Research and Development Program of China (Grant Nos. 2016YFJC020013 and 2018FYA0305800).

摘要: Large-area and flexible reduced graphene oxide (rGO)/Fe3O4 NPs/polyurethane (PU) composite films are fabricated by a facile solution-processable method. The monolayer assembly of Fe3O4 nanoparticles with a high particle-stacking density on the graphene oxide (GO) sheets is achieved by mixing two immiscible solutions of Fe3O4 nanoparticles in hexane and GO in dimethylformide (DMF) by a mild sonication. The x-ray diffraction and Raman spectrum confirm the reduced process of rGO by a simple thermal treatment. The permittivity value of the composite in a frequency range of 0.1 GHz-18 GHz increases with annealing temperature of GO increasing. For 5-wt% rGO/Fe3O4 NPs/PU, the maximum refection loss (RL) of over -35 dB appears at 4.5 GHz when the thickness of film increases to 5 mm. The rGO/Fe3O4 NPs/PU film, exhibiting good electromagnetic properties over GHz frequency range, could be a potential candidate as one of microwave absorption materials in flexible electronic devices.

关键词: graphene oxide, magnetic nanoparticles, flexible film, electromagnetic properties

Abstract: Large-area and flexible reduced graphene oxide (rGO)/Fe3O4 NPs/polyurethane (PU) composite films are fabricated by a facile solution-processable method. The monolayer assembly of Fe3O4 nanoparticles with a high particle-stacking density on the graphene oxide (GO) sheets is achieved by mixing two immiscible solutions of Fe3O4 nanoparticles in hexane and GO in dimethylformide (DMF) by a mild sonication. The x-ray diffraction and Raman spectrum confirm the reduced process of rGO by a simple thermal treatment. The permittivity value of the composite in a frequency range of 0.1 GHz-18 GHz increases with annealing temperature of GO increasing. For 5-wt% rGO/Fe3O4 NPs/PU, the maximum refection loss (RL) of over -35 dB appears at 4.5 GHz when the thickness of film increases to 5 mm. The rGO/Fe3O4 NPs/PU film, exhibiting good electromagnetic properties over GHz frequency range, could be a potential candidate as one of microwave absorption materials in flexible electronic devices.

Key words: graphene oxide, magnetic nanoparticles, flexible film, electromagnetic properties

中图分类号:  (Graphene)

  • 81.05.ue
75.75.-c (Magnetic properties of nanostructures) 67.80.dm (Films) 92.60.Ta (Electromagnetic wave propagation)