Facile and green fabrication of flame-retardant Ti3C2Tx MXene networks for ultrafast, reusable and weather-resistant fire warning

Mao, Min and Yu, Ke-xin and Cao, Cheng-fei and Gong, Li-Xiu and Zhang, Guo-dong and Zhao, Li and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X and Gao, Jie-feng and Tang, Long-Cheng (2022) Facile and green fabrication of flame-retardant Ti3C2Tx MXene networks for ultrafast, reusable and weather-resistant fire warning. Chemical Engineering Journal, 427:131615. pp. 1-11. ISSN 1385-8947


Abstract

Fire warning sensor capable of rapidly monitoring critical fire risk of combustible materials growingly plays a crucial role in reducing or avioding fire disaster under complicated environments. Unfortunately, to date the rational design of smart fire warning sensors that are reusable and weather-resistant remains a major challenge. Here, we report a facile and green strategy for fabricating biomimetic polyethylene glycol or polyvinyl pyrrolidone polymer decorated Ti3C2Tx MXene networks that possess exceptional flame resistance and sensitive fire cyclic warning performance. Novel fire warning sensors that were constructed based on the as-prepared inherently fire-retardant MXene networks exhibit ultrafast fire warning response and recovery time (~1.8 s and ~1.0 s), resistance switching behavior with >4 orders of magnitude, and stable fire cyclic warning capability for 100 cycles. Structural observation and analysis disclose that, upon flame attack, thermal pyrolysis of the polymer molecules facilitates the oxidation of MXene sheets to form a compact fish scale-like C/N dopped titania network, and meanwhile its electron excitation is thus activated to generate a sensitive resistance transition to trigger a rapid fire cyclic warning signal. More improtantly, the multifunctional MXene networks treated with silane modification not only endow combustible substrate with excellent super-hydrophobicity and outstanding flame resistance, but provide reusable and weather-resistant fire warning responses even after one-year outdoor exposure. Therefore, this work provides an innovative concept of advanced MXene composites and design of fire cyclic warning sensors for fire safety and prevention.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 30 Nov 2021 00:07
Last Modified: 01 Dec 2021 01:59
Uncontrolled Keywords: Combustible materials; Fire cyclic warning sensor; Fire disasters; Fire risks; Resistance transition; Surface super-hydrophobicity; Thermal-oxidation; Ti3C2Tx mxene network; Ultra-fast; Warning sensors
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030306 Synthesis of Materials
09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Fields of Research (2020): 34 CHEMICAL SCIENCES > 3403 Macromolecular and materials chemistry > 340302 Macromolecular materials
40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280105 Expanding knowledge in the chemical sciences
28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
Funding Details:
Identification Number or DOI: https://doi.org/10.1016/j.cej.2021.131615
URI: http://eprints.usq.edu.au/id/eprint/44077

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