High-performance flexible nanocomposites with superior fire safety and ultra-efficient electromagnetic interference shielding
Article
Liu, Miao, Chen, Kexin, Shi, Yongqian, Wang, Hengrui, Wu, Shijie, Huang, Ruizhe, Feng, Yuezhan, Tang, Longcheng, Liu, Xiaohuan and Song, Pingan. 2023. "High-performance flexible nanocomposites with superior fire safety and ultra-efficient electromagnetic interference shielding." Journal of Materials Science and Technology. 166, pp. 133-144. https://doi.org/10.1016/j.jmst.2023.05.017
| Article Title | High-performance flexible nanocomposites with superior fire safety and ultra-efficient electromagnetic interference shielding |
|---|---|
| ERA Journal ID | 4724 |
| Article Category | Article |
| Authors | Liu, Miao, Chen, Kexin, Shi, Yongqian, Wang, Hengrui, Wu, Shijie, Huang, Ruizhe, Feng, Yuezhan, Tang, Longcheng, Liu, Xiaohuan and Song, Pingan |
| Journal Title | Journal of Materials Science and Technology |
| Journal Citation | 166, pp. 133-144 |
| Number of Pages | 12 |
| Year | 2023 |
| Publisher | Elsevier |
| Place of Publication | Bulgaria |
| ISSN | 1005-0302 |
| Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jmst.2023.05.017 |
| Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1005030223004929 |
| Abstract | High-performance multifunctional polymeric materials integrated with high fire safety, excellent mechanical performances and electromagnetic interference (EMI) shielding properties have great prospects in practical applications. However, designing highly fire-safe and mechanically robust EMI shielding nanocomposites remains a great challenge. Herein, hierarchical thermoplastic polyurethane/cyclophosphazene functionalized titanium carbide/carbon fiber fabric (TPU/CP-Ti3C2Tx/CF) nanocomposites with high fire safety and mechanical strength and toughness were prepared through the methods of melt blending, layer-by-layer stacking and thermocompression. The TPU/CP-Ti3C2Tx showed improved thermal stability. Moreover, the peak of heat release rate and total heat release of the hierarchical TPU sample containing 4.0 wt.% CP-Ti3C2Tx were respectively reduced by 64.4% and 31.8% relative to those of pure TPU, which were far higher than those of other TPU-based nanocomposites. The averaged EMI shielding effectiveness value of the hierarchical TPU/CP-Ti3C2Tx-2.0/CF nanocomposite reached 30.0 dB, which could satisfy the requirement for commercial applications. Furthermore, the tensile strength of TPU/CP-Ti3C2Tx-2.0/CF achieved 43.2 MPa, and the ductility and toughness increased by 28.4% and 84.3% respectively compared to those of TPU/CF. Interfacial hydrogen bonding in combination with catalytic carbonization of CP-Ti3C2Tx nanosheets and continuous conductive network of CF were responsible for the superior fire safety, excellent EMI shielding and outstanding mechanical performances. This work offers a promising strategy to prepare multifunctional TPU-based nanocomposites, which have the potential for large-scale application in the fields of electronics, electrical equipment and 5 G facilities. |
| Keywords | Air assisted thermocompression; Electromagnetic interference shielding; Fire safety; Hierarchical structure; Mechanical strength and toughness |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
| 401605. Functional materials | |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | Fuzhou University, China |
| Zhengzhou University, China | |
| Hangzhou Normal University, China | |
| Taizhou University, China | |
| Centre for Future Materials | |
| School of Agriculture and Environmental Science |
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