Fire Intumescent, High-Temperature Resistant, Mechanically Flexible Graphene Oxide Network for Exceptional Fire Shielding and Ultra-Fast Fire Warning
Article
Article Title | Fire Intumescent, High-Temperature Resistant, Mechanically Flexible Graphene Oxide Network for Exceptional Fire Shielding and Ultra-Fast Fire Warning |
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ERA Journal ID | 213738 |
Article Category | Article |
Authors | Cao, Cheng-fei, Yu, Bin, Chen, Zuan-Yu, Qu, Yong-Xiang, Li, Yu-Tong, Shi, Yongqian, Ma, Zhewen, Sun, Feng-Na, Pan, Qing‑Hua, Tang, Long-Cheng, Song, Pingan and Wang, Hao |
Journal Title | Nano-Micro Letters |
Journal Citation | 14 (1) |
Article Number | 22 |
Number of Pages | 18 |
Year | 2022 |
Publisher | SpringerOpen |
Place of Publication | Germany |
ISSN | 2150-5551 |
2311-6706 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s40820-022-00837-1 |
Web Address (URL) | https://link.springer.com/article/10.1007/s40820-022-00837-1 |
Abstract | Smart fire alarm sensor (FAS) materials with mechanically robust, excellent flame retardancy as well as ultra-sensitive temperature-responsive capability are highly attractive platforms for fire safety application. However, most reported FAS materials can hardly provide sensitive, continuous and reliable alarm signal output due to their undesirable temperature-responsive, flame-resistant and mechanical performances. To overcome these hurdles, herein, we utilize the multi-amino molecule, named HCPA, that can serve as triple-roles including cross-linker, fire retardant and reducing agent for decorating graphene oxide (GO) sheets and obtaining the GO/HCPA hybrid networks. Benefiting from the formation of multi-interactions in hybrid network, the optimized GO/HCPA network exhibits significant increment in mechanical strength, e.g., tensile strength and toughness increase of ~ 2.3 and ~ 5.7 times, respectively, compared to the control one. More importantly, based on P and N doping and promoting thermal reduction effect on GO network, the excellent flame retardancy (withstanding ~ 1200 °C flame attack), ultra-fast fire alarm response time (~ 0.6 s) and ultra-long alarming period (> 600 s) are obtained, representing the best comprehensive performance of GO-based FAS counterparts. Furthermore, based on GO/HCPA network, the fireproof coating is constructed and applied in polymer foam and exhibited exceptional fire shielding performance. This work provides a new idea for designing and fabricating desirable FAS materials and fireproof coatings. |
Keywords | Graphene oxide; Multi-amino molecule; Flame resistance; Fire intumescent effect; Ultra-fast fire warning |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
401605. Functional materials | |
Public Notes | Design, construction and application of bio-inspired flame retardant nanocoatings for fire protection and warning |
Byline Affiliations | Centre for Future Materials |
Hangzhou Normal University, China | |
Fuzhou University, China | |
Zhejiang A & F University, China |
https://research.usq.edu.au/item/wz46z/fire-intumescent-high-temperature-resistant-mechanically-flexible-graphene-oxide-network-for-exceptional-fire-shielding-and-ultra-fast-fire-warning
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