Abstract
Highlights
Excellent impedance matching through component modulation engineering.
Rich heterogeneous interfaces are constructed to realize excellent electromagnetic wave (EMW) absorption performance.
Long-term corrosion protection and excellent EMW absorption properties.
Currently, the demand for electromagnetic wave (EMW) absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly urgent. Multi-component interface engineering is considered an effective means to achieve high-efficiency EMW absorption. However, interface modulation engineering has not been fully discussed and has great potential in the field of EMW absorption. In this study, multi-component tin compound fiber composites based on carbon fiber (CF) substrate were prepared by electrospinning, hydrothermal synthesis, and high-temperature thermal reduction. By utilizing the different properties of different substances, rich heterogeneous interfaces are constructed. This effectively promotes charge transfer and enhances interfacial polarization and conduction loss. The prepared SnS/SnS2/SnO2/CF composites with abundant heterogeneous interfaces have and exhibit excellent EMW absorption properties at a loading of 50 wt% in epoxy resin. The minimum reflection loss (RL) is − 46.74 dB and the maximum effective absorption bandwidth is 5.28 GHz. Moreover, SnS/SnS2/SnO2/CF epoxy composite coatings exhibited long-term corrosion resistance on Q235 steel surfaces. Therefore, this study provides an effective strategy for the design of high-efficiency EMW absorbing materials in complex and harsh environments.
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Details
1 Sichuan Agricultural University, College of Science, Ya’an, People’s Republic of China (GRID:grid.80510.3c) (ISNI:0000 0001 0185 3134); Qingdao University, Institute of Materials for Energy and Environment, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Qingdao, People’s Republic of China (GRID:grid.410645.2) (ISNI:0000 0001 0455 0905)
2 Hubei University of Automotive Technology, School of Materials Science and Engineering, Shiyan, People’s Republic of China (GRID:grid.443568.8) (ISNI:0000 0004 1799 0602)
3 Qingdao University, Institute of Materials for Energy and Environment, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Qingdao, People’s Republic of China (GRID:grid.410645.2) (ISNI:0000 0001 0455 0905)
4 Sichuan Agricultural University, College of Science, Ya’an, People’s Republic of China (GRID:grid.80510.3c) (ISNI:0000 0001 0185 3134)
5 Northwestern Polytechnical University, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Xi’an, People’s Republic of China (GRID:grid.440588.5) (ISNI:0000 0001 0307 1240)