Small multiamine molecule enabled fire-retardant polymeric materials with enhanced strength, toughness, and self-healing properties

Liu, Lei and Zhu, Menghe and Ma, Zhewen and Xu, Xiaodong and Dai, Jinfeng and Yu, Youming and Seraji, Seyed Mohsen and Wang, Hao and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X (2022) Small multiamine molecule enabled fire-retardant polymeric materials with enhanced strength, toughness, and self-healing properties. Chemical Engineering Journal, 400:135645. pp. 1-11. ISSN 1385-8947


Abstract

The combination of high fire retardancy, high strength, and great toughness as well as good healability is essential for successful real-world applications of polymeric materials in the fields of packaging, electronics & electrics, and optical devices. To date, there have been few successes in achieving such performance portfolios in polymers due to their different and even mutually exclusive governing mechanisms. Inspired by the nanoconfinement effect that governs the unique mechanical properties of spider silk, we, herein, rationally design a multifunctional small molecule, HCPA, that can serve as a fire retardant and hydrogen-bond crosslinker for poly(vinyl alcohol) (PVA). Benefiting from the dual-phase fire-retardancy effect and the dynamic cross-linking effect, the addition of 5.0 wt% of HCPA enables PVA to achieve a desired self-extinguishment in combination with a high tensile strength of 133 MPa and a toughness of 112 MJ/m3. In addition, the as-prepared polymer material exhibits a high healing efficiency of over 90% (based on strength) if triggered by water. This proof-of-concept opens numerous opportunities for the creation of self-extinguishing, strong, tough, and self-healing polymers for many high-end applications in the above-mentioned industries.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current – Faculty of Health, Engineering and Sciences - School of Agriculture and Environmental Science (1 Jan 2022 -)
Date Deposited: 19 Apr 2022 04:17
Last Modified: 19 Apr 2022 04:17
Uncontrolled Keywords: Hydrogen-bond crosslinker; Nanoconfinement; Flame retardancy; Mechanical property; Self-healing property
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
34 CHEMICAL SCIENCES > 3405 Organic chemistry > 340503 Organic chemical synthesis
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 > 240908 Organic industrial chemicals (excl. resins, rubber and plastics)
24 MANUFACTURING > 2409 Industrial chemicals and related products > 240904 Fine chemicals
Funding Details:
Identification Number or DOI: https://doi.org/10.1016/j.cej.2022.135645
URI: http://eprints.usq.edu.au/id/eprint/47649

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