Development of Electromagnetic-Wave-Shielding Polyvinylidene Fluoride–Ti3C2Tx MXene–Carbon Nanotube Composites by Improving Impedance Matching and Conductivity
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Preparation
2.3. Characterization
3. Results and Discussion
3.1. Characterization of MXene
3.2. Morphology of the SWCNTs
3.3. Potential Analysis of Electrostatic Self-Assembly
3.4. SEM Analysis of Composite Materials
3.5. Optimization of the Filling Content in Composites
3.6. Conductivity, EMI Shielding, Impedance Matching, and Absorption Coefficient
3.7. Comparison of Theoretical and Experimental Absorption Performance
3.8. Electromagnetic Parameter Analysis
3.9. Mechanism Analysis
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Samples | MXene Content (wt%) | SWCNTs Content (wt%) | Composition Structure Unit |
---|---|---|---|
PVDF/MXene5 | 5 | 0 | PVDF/MXene5 |
PVDF/SWCNTs2 | 0 | 2 | PVDF/SWCNTs2 |
PVDF/MXene2.5/SWCNTs1 | 2.5 | 1 | PVDF/MXene5 and PVDF/SWCNTs2 1 |
PVDF-SWCNTs1-MXene2.5 | 2.5 | 1 | PVDF@SWCNTs1/MXene2.5 |
PVDF-MXene2.5-SWCNTs1 | 2.5 | 1 | PVDF/MXene2.5@SWCNTs1 |
Samples * | SWCNTs Contents (wt %) | Conductivity (S cm−1) | EMI SEA (dB) | EMI SET (dB) | SEA/SET (%) |
---|---|---|---|---|---|
PVDF/MXene2.5/SWCNTs0.2 | 0.2 | 2.89 × 10−3 | 12. 1 | 19.4 | 61.7 |
PVDF/MXene2.5/SWCNTs0.5 | 0.5 | 4.71 × 10−1 | 18.33 | 30.6 | 59.8 |
PVDF/MXene2.5/SWCNTs 1 | 1 | 1.05 | 30.2 | 41.2 | 73.3 |
PVDF/MXene2.5/SWCNTs 1.5 | 1.5 | 3.77 | 32.4 | 45.9 | 70.6 |
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Zhang, Q.; Cui, J.; Zhao, S.; Zhang, G.; Gao, A.; Yan, Y. Development of Electromagnetic-Wave-Shielding Polyvinylidene Fluoride–Ti3C2Tx MXene–Carbon Nanotube Composites by Improving Impedance Matching and Conductivity. Nanomaterials 2023, 13, 417. https://doi.org/10.3390/nano13030417
Zhang Q, Cui J, Zhao S, Zhang G, Gao A, Yan Y. Development of Electromagnetic-Wave-Shielding Polyvinylidene Fluoride–Ti3C2Tx MXene–Carbon Nanotube Composites by Improving Impedance Matching and Conductivity. Nanomaterials. 2023; 13(3):417. https://doi.org/10.3390/nano13030417
Chicago/Turabian StyleZhang, Qimei, Jian Cui, Shuai Zhao, Guangfa Zhang, Ailin Gao, and Yehai Yan. 2023. "Development of Electromagnetic-Wave-Shielding Polyvinylidene Fluoride–Ti3C2Tx MXene–Carbon Nanotube Composites by Improving Impedance Matching and Conductivity" Nanomaterials 13, no. 3: 417. https://doi.org/10.3390/nano13030417