Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 16, Pages 14036-14044Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b01562
Keywords
leather matrix; metal nanoparticles; compatible shielding mechanism; absorption loss; reflection loss
Funding
- National Natural Science Foundation of China [21676171, 51507107]
- Fok Ying Tong Education Foundation for Young Teachers in the Higher Education Institutions of China [161099]
- Science and Technology Fund for Distinguished Young Scholars of Sichuan Province [2016JQ0002]
- 1000 Talents Program of Sichuan Province
- national Key R&D Program of China [2017YFB0308500]
- Science Foundation for Distinguished Young Scholar of Sichuan University [2017SCU04A04]
- Fundamental Research Funds for the Central Universities [2012017yjsj114]
Ask authors/readers for more resources
Leather matrix (LM), a natural dielectric material, features a hierarchically suprafibrillar structure and abundant dipoles, which provides the possibility to dissipate electromagnetic waves (EW) energy via dipole relaxation combined with multiple diffuse reflections. Conventionally, metal-based materials are used as EW shielding materials due to that their high conductivity can reflect EW effectively. Herein, a lightweight and high-performance EW shielding composite with both absorption and reflection ability to EW was developed by coating metal nanoparticles (MNPs) onto LM. The as-prepared metal/LM membrane with only 4.58 wt % of coated MNPs showed excellent EW shielding effectiveness of similar to 76.0 dB and specific shielding effectiveness of similar to 200.0 dB cm(3) g(-1) in the frequency range of 0.01-3.0 GHz, implying that more than 99.98% of EW was shielded. Further investigations indicated that the high shielding performances of the metal/LM membrane were attributed to the cooperative shielding mechanism between LM and the coating of MNPs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available