期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 213, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2021.108942
关键词
EMI shielding; Flexible conductive foam; Carbon black; Silver embedded structure; Templates assisted fabrication
资金
- National Natural Science Foundation of China [62074154, 61701488]
- Shenzhen Basic Research Plan [JCYJ20180507182530279]
- National key R&D Project from Minister of Science and Technology of China [2016YFA0202702]
- Youth Innovation Promotion Association of the Chinese Academy of Sciences [2017411]
The study presents a new metallization strategy to fabricate robust and flexible Ag@SBS/CB foam with outstanding EMI shielding performance. The foam exhibits high durability in compression-release tests and reveals a significant influence of pore size and silver fraction on EMI shielding effectiveness, providing an intriguing microstructure design strategy.
Designing robust, flexible, and low metal consuming hybrid foams for high-performance electromagnetic interference (EMI) shielding is crucial yet challenging. A new metallization strategy of foam type materials is presented to fabricate the robust and flexible silver embedded poly (styrene-block-butadiene-block-styrene)/ carbon black hybrid foam (Ag@SBS/CB) with ultra-low silver consumption. The synergistic effect between the embedded isolate Ag nanoparticles and carbon black endows the Ag@SBS/CB foam with high mechanical and electrical stability as well as outstanding EMI shielding performance. The Ag@SBS/CB foam can endure over 1500 cycles of the compression-release test without detectable decay in the relative conductivity. A significant influence of the pore size and the silver fraction on the EMI shielding performance is revealed, providing an intriguing microstructure design strategy. The EMI shielding effectiveness (SE) of the foam reaches 81.3 dB with the silver fraction of 0.63 vol% and a CB fraction of 15 wt% at a thickness of about 5 mm. In particular, the Ag@SBS/CB foam with a thinner thickness of 2 mm shows a much better near-field EMI shielding than Al plate.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据