期刊
SMALL
卷 13, 期 34, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201701388
关键词
electromagnetic interference shielding; lightweight structures; nanocomposites; porous architectures; size effects
类别
资金
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA09030200]
- National Natural Science Foundation of China [11225210]
Multiwalled carbon nanotube/polymer composites with aligned and isotropic micropores are constructed by a facile ice-templated freeze-drying method in a wide density range, with controllable types and contents of the nanoscale building blocks, in order to tune the shielding performance together with the considerable mechanical and electrical properties. Under the mutual promotion of the frame and porous structure, the lightweight high-performance shielding is achieved: a 2.3 mm thick sample can reach 46.7 and 21.7 dB in the microwave X-band while the density is merely 32.3 and 9.0 mg cm(-3), respectively. The lowest density corresponds to a value of shielding effectiveness divided by both the density and thickness up to 10(4) dB cm(2) g(-1), far beyond the conductive polymer composites with other fillers ever reported. The shielding mechanism of the flexible porous materials is further demonstrated by an in situ compression experiment.
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