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MXenes-based nanojunction with defective MoSe2 nanocatalyst towards reducing the thermal runaway hazard of polymer

  • Junling Wang
  • , Keji Li
  • , Chao Cheng
  • , Shibin Nie*
  • , Wei Cai
  • , Qi Zhang
  • , Fudong Zhao
  • , Kwok Kit Richard YUEN
  • *Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

The shining star of transition metal carbides (MXenes, denoted as MX) has motivated the great interest in flame retardation. Meanwhile, its usage suffers from the issues of poor flame-retardant effectiveness, serious aggregation, etc. Here, the interfacial assembly method is employed to deploy the MX based nanojunction with defective MoSe2 nanocatalyst (MX-Mo-A). Under its extremely-low dosage (∼1.0 wt%), the decreases of 41.0 %, 57.0 %, 29.2 % on peak heat release rate, peak smoke production rate, total smoke production of thermoplastic polyurethane are achieved, confirming the greatly hindered emissions of heat and smoke. Besides, the peak CO yield is impaired by 81.2 %, demonstrating the obviously impeded fire toxicity. Such flame retardance superiorities are vividly elucidated via contrast with published works. More encouragingly, the markedly suppressed releases of toxic aromatic compounds, NO and HCN are detected. This work may enable the new paradigm for designing interfacial assembly induced nanojunctions and fabricating fire-proof polymer-matrix composites (PMCs). © 2024 Elsevier Ltd.
Original languageEnglish
Article number108004
JournalComposites Part A: Applied Science and Manufacturing
Volume179
Online published6 Jan 2024
DOIs
Publication statusPublished - Apr 2024

Funding

The work was financially supported by the National Natural Science Foundation of China ( 52104197 ), Hongkong Scholar Program ( XJ2022022 ), National Science Foundation for Post-doctoral Scientists of China ( 2021M691549 ), Research Grants Council of the Hong Kong Special Administrative Region ( CityU 11214221 ), Jiangsu Provincial Double-Innovation Doctor Program ( JSSCBS20210402 ), Natural Science Foundation of the Jiangsu Higher Education Institutions ( 21KJB620001 ), The Open Fund of the State Key Laboratory of Fire Science (SKLFS) Program ( HZ2022-KF04 ).

Research Keywords

  • A Hybrid
  • A Polymer-matrix composites (PMCs)
  • B Flame/fire retardancy
  • B Thermal properties

RGC Funding Information

  • RGC-funded

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