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Chin. Phys. B, 2014, Vol. 23(8): 088802    DOI: 10.1088/1674-1056/23/8/088802
SPECIAL TOPI—International Conference on Nanoscience & Technology, China 2013 Prev   Next  

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

Liang Jia-Jie, Huang Yi, Zhang Fan, Li Ning, Ma Yan-Feng, Li Fei-Fei, Chen Yong-Sheng
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
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.
Keywords:  microwave absorption      single-walled carbon nanotube-epoxy composites      ultra-low loadings     
Received:  04 September 2013      Published:  15 August 2014
PACS:  88.30.rh (Carbon nanotubes)  
  52.70.Gw (Radio-frequency and microwave measurements)  
  95.85.Bh (Radio, microwave (>1 mm))  
Fund: 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).
Corresponding Authors:  Huang Yi, Chen Yong-Sheng     E-mail:  yihuang@nankai.edu.cn;yschen99@nankai.edu.cn

Cite this article: 

Liang Jia-Jie, Huang Yi, Zhang Fan, Li Ning, Ma Yan-Feng, Li Fei-Fei, Chen Yong-Sheng High microwave absorption performances for single-walled carbon nanotube-epoxy composites with ultra-low loadings 2014 Chin. Phys. B 23 088802

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