Closed-Loop Recyclable, Self-Catalytic Transesterification Vitrimer Coatings with Superior Adhesive Strength, Fire Retardancy, and Environmental Stability
Article
| Article Title | Closed-Loop Recyclable, Self-Catalytic Transesterification Vitrimer Coatings with Superior Adhesive Strength, Fire Retardancy, and Environmental Stability |
|---|---|
| ERA Journal ID | 211588 |
| Article Category | Article |
| Authors | Wang, Cheng, Ye, Guofeng, Zhang, Qi, Wang, Hao, Huo, Siqi and Liu, Zhitian |
| Journal Title | ACS Materials Letters |
| Journal Citation | 7 (1), pp. 210-219 |
| Number of Pages | 10 |
| Year | 2025 |
| Publisher | American Chemical Society |
| Place of Publication | United States |
| ISSN | 2639-4979 |
| Digital Object Identifier (DOI) | https://doi.org/10.1021/acsmaterialslett.4c02235 |
| Web Address (URL) | https://pubs.acs.org/doi/10.1021/acsmaterialslett.4c02235 |
| Abstract | The nondegradability, nonreusability, and flammability of epoxy coatings have brought serious environmental and safety issues. Herein, a multifunctional, fire-retardant epoxy vitrimer coating (DCNC/45PETO) was prepared via curing bis(2,3-epoxypropyl)cyclohex-4-ene-1,2-dicarboxylate (DCNC) with a well-designed phosphaphenanthrene-containing polyethylenimine (PETO) at room temperature. DCNC/45PETO exhibits excellent adhesion to different substrates, with a high adhesive strength of 7.9 MPa on wood, outperforming previous wood coatings/adhesives. The DCNC/45PETO coating endows wood with excellent fire retardancy, including a high limiting oxygen index of 34.0% and a vertical burning (UL-94) V-0 rating. DCNC/45PETO demonstrates durable adhesion and fire-retardant performances in harsh environments. The self-catalytic transesterification within the DCNC/45PETO network effectively avoids the application of extra toxic catalysts, and this coating can be reused for at least 5 times in mild conditions without compromising its performances. This study provides an innovative design strategy for creating multifunctional vitrimer coatings, showing great application potential in the construction field. |
| Keywords | Coating materials ; Wood; Surface interactions; Redox reactions; Organic polymers |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
| Public Notes | The accessible file is the accepted version of the paper. Please refer to the URL for the published version. |
| Byline Affiliations | Wuhan Institute of Technology, China |
| School of Engineering | |
| Centre for Future Materials |
https://research.usq.edu.au/item/zqx1y/closed-loop-recyclable-self-catalytic-transesterification-vitrimer-coatings-with-superior-adhesive-strength-fire-retardancy-and-environmental-stability
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