›› 2014, Vol. 23 ›› Issue (8): 88802-088802.doi: 10.1088/1674-1056/23/8/088802

• SPECIAL TOPI—International Conference on Nanoscience & Technology, China 2013 • 上一篇    下一篇

High microwave absorption performances for single-walled carbon nanotube-epoxy composites with ultra-low loadings

梁嘉杰, 黄毅, 张帆, 李宁, 马延风, 李飞飞, 陈永胜   

  1. Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Center for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
  • 收稿日期:2013-09-04 修回日期:2014-04-14 出版日期:2014-08-15 发布日期:2014-08-15
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant Nos. 2012CB933401 and 2014CB643502) and the National Natural Science Foundation of China (Grant Nos. 21374050, 51273093, and 51373078).

High microwave absorption performances for single-walled carbon nanotube-epoxy composites with ultra-low loadings

Liang Jia-Jie (梁嘉杰), Huang Yi (黄毅), Zhang Fan (张帆), Li Ning (李宁), Ma Yan-Feng (马延风), Li Fei-Fei (李飞飞), Chen Yong-Sheng (陈永胜)   

  1. Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Center for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
  • Received:2013-09-04 Revised:2014-04-14 Online:2014-08-15 Published:2014-08-15
  • Contact: Huang Yi, Chen Yong-Sheng E-mail:yihuang@nankai.edu.cn;yschen99@nankai.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant Nos. 2012CB933401 and 2014CB643502) and the National Natural Science Foundation of China (Grant Nos. 21374050, 51273093, and 51373078).

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摘要： Microwave-absorbing polymeric composites based on single-walled carbon nanotubes (SWNTs) are fabricated via a simple yet versatile method, and these SWNT-epoxy composites exhibit very impressive microwave absorption performances in a range of 2 GHz-18 GHz. For instance, a maximum absorbing value as high as 28 dB can be achieved for each of these SWNT-epoxy composites (1.3-mm thickness) with only 1 wt% loading of SWNTs, and about 4.8 GHz bandwidth, corresponding to a microwave absorption performance higher than 10 dB, is obtained. Furthermore, such low and appropriate loadings of SWNTs also enhance the mechanical strength of the composite. It is suggested that these remarkable results are mainly attributable to the excellent intrinsic properties of SWNTs and their homogeneous dispersion state in the polymer matrix.

关键词: microwave absorption, single-walled carbon nanotube-epoxy composites, ultra-low loadings

Abstract: Microwave-absorbing polymeric composites based on single-walled carbon nanotubes (SWNTs) are fabricated via a simple yet versatile method, and these SWNT-epoxy composites exhibit very impressive microwave absorption performances in a range of 2 GHz-18 GHz. For instance, a maximum absorbing value as high as 28 dB can be achieved for each of these SWNT-epoxy composites (1.3-mm thickness) with only 1 wt% loading of SWNTs, and about 4.8 GHz bandwidth, corresponding to a microwave absorption performance higher than 10 dB, is obtained. Furthermore, such low and appropriate loadings of SWNTs also enhance the mechanical strength of the composite. It is suggested that these remarkable results are mainly attributable to the excellent intrinsic properties of SWNTs and their homogeneous dispersion state in the polymer matrix.

Key words: microwave absorption, single-walled carbon nanotube-epoxy composites, ultra-low loadings

中图分类号:  (Carbon nanotubes)

  • 88.30.rh
52.70.Gw (Radio-frequency and microwave measurements) 95.85.Bh (Radio, microwave (>1 mm))