Aramid nanofiber-reinforced graphene oxide frameworks for durable and flame-resistant fire warning sensors
Meng Q. Zhu Y. Li S. Zhao K. Araby S. Han S.
1 March 2025Elsevier Editora Ltda
Journal of Materials Research and Technology
2025#354175 - 4188 pp.
Currently, fire warning sensors utilizing nanomaterials gained attention in research and development sectors. Among these, graphene oxide (GO)-based sensors stand out for their promising features in fire detection systems. However, GO sensors still suffer from poor durability, short-alarming time and poor solvent resistance. In this study, GO is modified with melamine diborate (M·2B) and incorporated into aramid nanofibers (ANFs) to develop GO-MB@ANFs nanopaper via mechanical mixing followed by vacuum-assisted filtration self-assembly. ANFs cross-linked graphene oxide sheets within a 3D scaffold while M·2B plays a critical role in enhancing flame retardancy of GO-based nanopaper. GO-MB@ANFs nanopaper features tensile strength of 132.3 MPa and toughness of 837 MJ/m³ in comparison with 10 MPa and 2 MJ/m³ for pure GO-based nanopaper. The GO-MB@ANFs nanopaper demonstrated remarkable flame resistance; it can endure direct exposure to an alcohol flame for 120 s with exceptional thermal stability. Additionally, it showed excellent features as a fire-warning sensor; GO-MB@ANFs exhibited a rapid response time of 0.73 s and an extended alarm duration exceeding 1260 s at 300 °C. Moreover, the supramolecular cross-linking of M·2B and ANFs endowed the GO nanopaper with excellent solvent resistance, maintaining its integrity even under harsh acidic and alkaline environments such as H₂SO₄, NaOH, and NaCl. The current study provides a new strategy for developing a robust, durable and cost-effective GO-based fire alarm sensor for diverse applications in construction and transportation industry.
Aramid nanofibers , Fire-warning system , Graphene oxide , Mechanical durability
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College of Aerospace Engineering, Shenyang Aerospace University, Shenyang, 110136, China
Department of Mechanical and Aerospace Engineering School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
College of Aerospace Engineering
Department of Mechanical and Aerospace Engineering School of Engineering and Digital Sciences
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