High Microwave Absorption Performance for Single-Walled Carbon Nanotubes/Epoxy Composites with Ultra-low Loadings
摘要：The microwave-absorbing polymeric composites based on single-walled carbon nanotubes （SWNT） have been fabricated via a simple yet versatile method, and these SWNT/Epoxy composites exhibit very impressive microwave absorption performance at the range of 2-18 GHz. For instance, a maximum absorbing value of as high as 28 dB can be achieved for these SWNT/Epoxy composites （1.3 mm thickness） with only 1 wt% loading of SWNT, and around 4.8 GHz bandwidth corresponding to microwave absorption performance larger than 10 dB is obtained. Furthermore, such low and appropriate loadings of SWNT also enhance the mechanical strength of the composites. It is suggested that these remarkable results are mainly attributed to the excellent intrinsic properties of SWNTs and their homogeneous dispersion state in the polymer matrix.
International Conference on Nanoscience & Technology,China 2013（ChinaNANO 2013）