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High microwave absorption performances for single-walled carbon nanotube–epoxy composites with ultra-low loadings 被引量:1
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作者 梁嘉杰 黄毅 +4 位作者 张帆 李宁 马延风 李飞飞 陈永胜 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第8期183-188,共6页
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... 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. 展开更多
关键词 microwave absorption single-walled carbon nanotube-epoxy composites ultra-low loadings
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