Flame retardant and multifunctional BC/MXene/MSiCnw/FRTPU aerogel composites with superior electromagnetic interference shielding via “Consolidating” method
Article
Article Title | Flame retardant and multifunctional BC/MXene/MSiCnw/FRTPU aerogel composites with superior electromagnetic interference shielding via “Consolidating” method |
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ERA Journal ID | 3854 |
Article Category | Article |
Authors | Wang, Hengrui, Chen, Kexin, Shi, Yongqian, Zhu, Yanjun, Jiang, Songqiong, Liu, Yan, Wu, Shijie, Nie, Chenxin, Fu, Libi, Feng, Yuezhan and Song, Pingan |
Journal Title | Chemical Engineering Journal |
Journal Citation | 474 |
Article Number | 145904 |
Number of Pages | 14 |
Year | 2023 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 1385-8947 |
1873-3212 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.cej.2023.145904 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1385894723046351 |
Abstract | The demand for high-strength, flexible, and multifunctional electromagnetic interference (EMI) shielding materials has significantly increased in many fields. Herein, inspired by reinforced concrete pouring in construction, we propose a “consolidating” method to successfully fabricate flame-retardant thermoplastic polyurethane (TPU) reinforced bacterial cellulose (BC)/MXene/modified silicon carbide nanowires (MSiCnw) aerogel composites. The obtained aerogel composites have a disordered pore structure, in which BC/MXene/MSiCnw is used as the internal skeleton, and the tightly attached flame retardant TPU sheet is used as the protective layer. The as-synthesized aerogel composites possess excellent mechanical properties, withstanding repeated compression and exhibiting a compressive strength of 8.86 kPa which is 735.8% higher than that of BC aerogel. At a low MXene content (6.17 wt%), the aerogel composite exhibits an EMI utilization efficiency of 1209.08 dB/g g−1 and an average EMI shielding effectiveness of up to 81.6 dB (K-band). Furthermore, the aerogel composites show excellent flame retardant property (69.8% reduction in peak of heat release rate). More interestingly, the aerogel composite displays satisfactory thermal insulation performances and reaches a low thermal conductivity of 34.4 mW/m K−1. Overall, the as-prepared highly fire safe BC/MXene/MSiCnw/FRTPU aerogel composites show multifunctional properties, making them suitable for applications in electromagnetic shielding and thermal insulation. |
Keywords | Consolidating method; Electromagnetic interference shielding; Flame retardancy; Mechanical strength; Thermal insulation |
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 | |
Centre for Future Materials | |
School of Agriculture and Environmental Science |
https://research.usq.edu.au/item/z2711/flame-retardant-and-multifunctional-bc-mxene-msicnw-frtpu-aerogel-composites-with-superior-electromagnetic-interference-shielding-via-consolidating-method
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