Bio-inspired, sustainable and mechanically robust graphene oxide-based hybrid networks for efficient fire protection and warning

Cao, Cheng-Fei and Yu, Bin and Guo, Bi-Fan and Hu, Wan-jun and Sun, Feng-Na and Zhang, Zhao-Hui and Li, Shi-Neng and Wu, Wei and Tang, Long-Cheng and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X and Wang, Hao (2022) Bio-inspired, sustainable and mechanically robust graphene oxide-based hybrid networks for efficient fire protection and warning. Chemical Engineering Journal, 439:134516. pp. 1-14. ISSN 1385-8947

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Bio-inspired, sustainable and mechanically robust graphene oxide-based hybrid networks for efficient fire protection and warning.pdf
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Abstract

Effective utilization of natural biomass-derivatives for developing sustainable, mechanically robust, and fireproof materials remains a huge challenge in fire safety and prevention field. Herein, based on bionic design, the hybrid interconnected networks composed of two-dimensional (2D) graphene oxide (GO) nanosheets, renewable one-dimensional (1D) phosphorylated-cellulose nanofibrils (P-CNFs) and tannic acid molecules (TA) were prepared via a green and facile evaporation-induced self-assembly strategy. Through construction of the multiple synergistic interactions among the TA, P-CNFs and GO, the optimized 1D/2D interconnected networks with hierarchical nacre-like structure were achieved and exhibited improved mechanical properties (tensile strength and Young’s modulus up to ∼132 MPa and ∼7 GPa, i.e. ∼3.6 and ∼14 times higher than that of the pure GO paper), good structural stability in various environments (aqueous solutions with different pH values), excellent flame retardancy (keeping structural integrity after flame attack), and ultrasensitive fire alarm functions (e.g., ultrafast flame alarm time of <1 s and sensitive fire warning responses). Further, such 1D/2D interconnected networks can act as effective flame-retardant nanocoatings to significantly improve the flame retardancy of combustible PU foam materials (e.g., ∼48% decrease in peak heat release rate at only 10 wt.% content). Based on the structure observation and analysis, the related synergistic reinforcing and flame-retardant mechanisms were proposed and clarified. Clearly, this work provides a new route for design and development of environmentally friendly fireproof and fire alarm materials based on utilization of natural biomass-derivatives.


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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: 23 Mar 2022 23:55
Last Modified: 26 Mar 2022 05:55
Uncontrolled Keywords: Biomass-derivatives; Bionic design; Fire early warning; Fire protection; Graphene oxide
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
40 ENGINEERING > 4016 Materials engineering > 401609 Polymers and plastics
40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2020): 24 MANUFACTURING > 2409 Industrial chemicals and related products > 240910 Plastics
24 MANUFACTURING > 2409 Industrial chemicals and related products > 240999 Industrial chemicals and related products not elsewhere classified
24 MANUFACTURING > 2409 Industrial chemicals and related products > 240908 Organic industrial chemicals (excl. resins, rubber and plastics)
Funding Details:
Identification Number or DOI: https://doi.org/10.1016/j.cej.2022.134516
URI: http://eprints.usq.edu.au/id/eprint/47388

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