Impact of Polymer Matrix on the Electromagnetic Interference Shielding Performance for Single-Walled Carbon Nanotubes-Based Composites

被引：9
作者：
Liang, Jiajie
Huang, Yi [1 ]
Li, Ning
Bai, Gang
Liu, Zunfeng
Du, Feng
Li, Feifei
Ma, Yanfeng
Chen, Yongsheng
机构：
[1] Nankai Univ, Coll Chem, Key Lab Funct Polymer Mat, Tianjin 300071, Peoples R China
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2013年 / 13卷 / 02期
关键词：
Electromagnetic Interference Shielding; Single-Walled Carbon Nanotubes; Composite; MICROWAVE-ABSORPTION PROPERTIES; CONDUCTIVITY; THRESHOLD;
D O I：
10.1166/jnn.2013.5997
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Composites of acrylonitrile butadiene styrene (ABS), epoxy and soluble cross-linked polyurethane (SCPU) with various loadings of single-walled carbon nanotubes (SWCNTs) were prepared. Their electromagnetic interference (EMI) shielding effectiveness (SE) in the frequency range of 8.2-12.4 GHz (X band) was studied. Well-dispersed SWCNT composites were created in these three representative polymer matrixes. The choice of polymer matrix greatly affects the conductivity, percolation threshold, and EMI shielding properties of the SWCNT/polymer composites. Enhanced EMI SE performances were observed for the composites with better dispersed SWCNTs. Moreover, the EMI SE performances strongly correlated with SWCNT loading in the polymer matrix. The best SWCNT dispersion was achieved in the epoxy matrix: 20-30 dB EMI SE was obtained with 15 wt% SWCNTs.
引用
收藏
页码：1120 / 1124
页数：5
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