Flexible CNT-MXene-CNT Film with Low Surface Conductance for High- and Low-Power Electromagnetic Absorption Protection
Source abstract
Abstract
High absorption performance terahertz (THz) and GHz absorbers with low surface conductance are urgently indispensable in the application of military electromagnetic protection and multiband communication. Herein, cost-effective approaches of modified grafting and hot-pressing molding methods are proposed to construct CNT-MXene-CNT films based on a modified methyl vinyl silicone rubber (MVSR). The resultant 3 mm CNT-1.1-MXene-1.9-CNT-1.1 sample exhibits average electromagnetic interference shielding effectiveness (EMI SE) of about 29.2 dB in the range of 2–12.5 GHz and favorable EMI SE of 48.2 dB within 0.1–2.2 THz. In addition, the optimized sample also obtains excellent EMI SE of about 31.8 and 41.2 dB under the high-power test conditions in the GHz and THz bands. Besides, the CNT-1.1-MXene-1.9-CNT-1.1 sample possesses only about 1.5% overall loading content with a low surface conductivity of 2.3 μS/m. The as-prepared absorber with a low surface conductance demonstrates enormous potential in future military and civilian applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science, Fudan University, Shanghai 200433, P. R. China
Beijing Institute of Astronautical Systems Engineering, Beijing 100076, P. R. China
Zhongshan-Fudan Joint Innovation Center, Zhongshan 528437, Guangdong Province, P. R. China
Yiwu Research Institute of Fudan University, Yiwu City 322000, Zhejiang P. R. China
Funding
Natural Science Foundation of Shanghai Municipality · National Natural Science Foundation of China · the exploratory research project ?Yanchang Petroleum (Group)-Fudan University?
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