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

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 perfor- mances in a range of 2 GHz-18 GHz. For instance, a maximum absorbing value a...

Full description

Saved in:
Bibliographic Details
Published in:Chinese physics B 2014-08, Vol.23 (8), p.183-188
Main Authors: Liang, Jia-Jie, Huang, Yi, Zhang, Fan, Li, Ning, Ma, Yan-Feng, Li, Fei-Fei, Chen, Yong-Sheng
Format: Article
Language:English
Subjects:
Absorption
Bandwidth
Carbon
Dispersions
Microwave absorption
Nanostructure
Noise levels
Single wall carbon nanotubes
SWNT
单壁碳纳米管
微波吸收性能
机械强度
环氧复合材料
聚合物基体
聚合物复合材料
超低负荷
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 perfor- mances 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 appro- priate 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.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/23/8/088802