Electric-magnetic-dielectric synergism and Salisbury screen effect in laminated polymer composites with multiwall carbon nanotube, nickel, and antimony trioxide for enhancing electromagnetic interference shielding

Electric-magnetic-dielectric synergism and Salisbury screen effect in laminated polymer composites with multiwall carbon nanotube, nickel, and antimony trioxide for enhancing electromagnetic interference shielding
复制标题

DOI：
10.1016/j.compositesa.2022.106901
复制
发表时间：
2022-05
期刊：
Composites Part A: Applied Science and Manufacturing
影响因子：
--
通讯作者：
Qian He;Junjun Tao;Yi Yang;Dian Yang;Kai Zhang;B. Fei;Ming-Xin Wang
Qian He;Junjun Tao;Yi Yang;Dian Yang;Kai Zhang;B. Fei;Ming-Xin Wang
中科院分区：
其他
文献类型：
--
作者：
Qian He;Junjun Tao;Yi Yang;Dian Yang;Kai Zhang;B. Fei;Ming-Xin Wang

文献摘要

被引文献

相似文献

本文以聚二甲基硅氧烷（PDMS）为基体，多壁碳纳米管（MWCNTs）、镍（Ni）和三氧化二锑（Sb 2 O3）为复合填料，研究了复合材料的电磁-介电损耗协同效应。一般来说，MWCNTs和Ni颗粒在复合材料中主要提供微波的电和磁耗散，分别。Sb 2 O3颗粒被用来改善阻抗匹配和减少微波的表面反射。讨论了不同配比的填料组合对Sb 2 O3-Ni-MWCNTs电磁干扰屏蔽效能的协同效应。设计了对称结构（SS）和非对称结构（AS）复合材料，以获得高的电磁屏蔽效应和吸收系数。例如，SS复合材料和AS复合材料由于电磁-介电协同效应和Salisbury屏蔽效应，可分别获得高达57.4dB/dB 0.75和55.7dB/dB 0.80的EMI SET/吸收系数。
Herein, polydimethylsiloxane (PDMS) was used as matrix, multi-walled carbon nanotubes (MWCNTs), nickel (Ni) and antimony trioxide (Sb2O3) particles were used as multiple fillers to explore the electric-magnetic-dielectric loss synergism in the composites. Generally, MWCNTs and Ni particles in the composites provided mainly electric and magnetic dissipation of microwaves, respectively. Sb2O3particles were used to improve impedance matching and reduce surface reflection of microwaves. The synergistic effect of the Sb2O3-Ni-MWCNTs on electromagnetic interference (EMI) shielding effectiveness (SE) was discussed for combination of fillers with different ratio. Furthermore, the symmetrical structure (SS) and asymmetric structure (AS) composites were designed to obtain high EMI SE and absorption coefficient. For example, the SS composites and the AS composites could achieve the high EMI SET/absorption coefficient of ∼ 57.4 dB/ ∼ 0.75, and ∼ 55.7 dB/ ∼ 0.80, respectively, because of the electric-magnetic-dielectric synergism and Salisbury screen effect.