Strong yet Tough Catalyst-Free Transesterification Vitrimer with Excellent Fire-Retardancy, Durability, and Closed-Loop Recyclability
Article
Article Title | Strong yet Tough Catalyst-Free Transesterification Vitrimer with Excellent Fire-Retardancy, Durability, and Closed-Loop Recyclability |
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ERA Journal ID | 3432 |
Article Category | Article |
Authors | Ye, Guofeng, Huo, Siqi, Wang, Cheng, Zhang, Qi, Wang, Hao, Song, Pingan and Liu, Zhitian |
Journal Title | Small |
Journal Citation | 20 (43) |
Article Number | 2403375 |
Number of Pages | 10 |
Year | 2024 |
Publisher | John Wiley & Sons |
Place of Publication | Germany |
ISSN | 1613-6810 |
1613-6829 | |
Digital Object Identifier (DOI) | https://doi.org/10.1002/smll.202404634 |
Web Address (URL) | https://onlinelibrary.wiley.com/doi/full/10.1002/smll.202404634 |
Abstract | Despite great advances in vitrimer, it remains highly challenging to achieve a property portfolio of excellent mechanical properties, desired durability, and high fire safety. Thus, a catalyst-free, closed-loop recyclable transesterification vitrimer (TPN1.50) with superior mechanical properties, durability, and fire retardancy is developed by introducing a rationally designed tertiary amine/phosphorus-containing reactive oligomer (TPN) into epoxy resin (EP). Because of strong covalent interactions between TPN and EP and its linear oligomer structure, as-prepared TPN1.50 achieves a tensile strength of 86.2 MPa and a toughness of 6.8 MJ m−3, superior to previous vitrimer counterparts. TPN1.50 containing 1.50 wt% phosphorus shows desirable fire retardancy, including a limiting oxygen index of 35.2% and a vertical burning (UL-94) V-0 classification. TPN1.50 features great durability and can maintain its structure integrity in 1 M HCl or NaOH solution for 100 days. This is because the tertiary amines are anchored within the cross-linked network and blocked by rigid P-containing groups, thus effectively suppressing the transesterification. Owing to its good chemical recovery, TPN1.50 can be used as a promising resin for creating recyclable carbon fiber-reinforced polymer composites. This work offers a promising integrated method for creating robust durable fire-safe vitrimers which facilitate the sustainable development of high-performance polymer composites. |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
Byline Affiliations | Wuhan Institute of Technology, China |
School of Engineering | |
Centre for Future Materials | |
School of Agriculture and Environmental Science |
https://research.usq.edu.au/item/z8872/strong-yet-tough-catalyst-free-transesterification-vitrimer-with-excellent-fire-retardancy-durability-and-closed-loop-recyclability
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Small - 2024 - Ye - Strong yet Tough Catalyst‐Free Transesterification Vitrimer with Excellent Fire‐Retardancy Durability .pdf | ||
License: CC BY 4.0 | ||
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