Fire-retardant, anti-dripping, biodegradable and biobased polyurethane elastomers enabled by hydrogen-bonding with cellulose nanocrystals
Article
Xue, Yijiao, Zhang, Tianchen, Peng, Hong, Ma, Zhewen, Zhang, Meng, Lynch, Mark, Dinh, Toan, Zhou, Zhezhe, Zhou, Yonghong and Song, Pingan. 2024. "Fire-retardant, anti-dripping, biodegradable and biobased polyurethane elastomers enabled by hydrogen-bonding with cellulose nanocrystals." Nano Research. 17 (3), pp. 2186-2194. https://doi.org/10.1007/s12274-023-6397-0
| Article Title | Fire-retardant, anti-dripping, biodegradable and biobased polyurethane elastomers enabled by hydrogen-bonding with cellulose nanocrystals |
|---|---|
| ERA Journal ID | 123989 |
| Article Category | Article |
| Authors | Xue, Yijiao, Zhang, Tianchen, Peng, Hong, Ma, Zhewen, Zhang, Meng, Lynch, Mark, Dinh, Toan, Zhou, Zhezhe, Zhou, Yonghong and Song, Pingan |
| Journal Title | Nano Research |
| Journal Citation | 17 (3), pp. 2186-2194 |
| Number of Pages | 9 |
| Year | 2024 |
| Publisher | Springer |
| Place of Publication | China |
| ISSN | 1998-0000 |
| 1998-0124 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1007/s12274-023-6397-0 |
| Web Address (URL) | https://link.springer.com/article/10.1007/s12274-023-6397-0 |
| Abstract | Thermoplastic polyurethane (PU) elastomers have attracted significant attention because of their many important industrial applications. However, the creation of fire-retardant and anti-dripping PU elastomers has remained a grant challenge due to the lack of crosslinking and weak interchain interactions. Herein, we report a mechanically robust, biodegradable, fire-retardant, and anti-dripping biobased PU elastomer with excellent biodegradability using an abietic acid-based compound as hard segments and polycaprolactone diol (PCL) as soft segments, followed by physically crosslinking with cellulose nanocrystals (CNC) through dynamic hydrogen-bonding. The resultant elastomer shows the balanced mechanical and fire-retardant properties, e.g., a tensile strength and break strain of 9.1 MPa and 560%, a self-extinguishing ability (V-0 rating in UL-94 testing), and an anti-dripping behavior. Moreover, the as-developed PU can be completely degraded in 1.0 wt.% lipase solution at 37 °C in 60 days, arising from the catalytic and wicking effect of CNC on PU chains. This work provides an innovative and versatile strategy for constructing robust, fire-retardant, anti-dripping, and biodegradable PU elastomers, which hold great promise for practical applications in electronic and automobile sectors. |
| Keywords | anti-dripping; polyurethane elastomers; cellulose nanocrystals; fire retardancy; biodegradation |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 401605. Functional materials |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | Chinese Academy of Forestry, China |
| University of Queensland | |
| Tongji University, China | |
| School of Agriculture and Environmental Science | |
| Centre for Future Materials |
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