Please use this identifier to cite or link to this item:
https://doi.org/10.1002/adfm.202203610
DC Field | Value | |
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dc.title | Strong and Tough Conductive Organo-Hydrogels via Freeze-Casting Assisted Solution Substitution | |
dc.contributor.author | Dong, X | |
dc.contributor.author | Guo, X | |
dc.contributor.author | Liu, Q | |
dc.contributor.author | Zhao, Y | |
dc.contributor.author | Qi, H | |
dc.contributor.author | Zhai, W | |
dc.date.accessioned | 2023-07-24T00:35:10Z | |
dc.date.available | 2023-07-24T00:35:10Z | |
dc.date.issued | 2022-08-01 | |
dc.identifier.citation | Dong, X, Guo, X, Liu, Q, Zhao, Y, Qi, H, Zhai, W (2022-08-01). Strong and Tough Conductive Organo-Hydrogels via Freeze-Casting Assisted Solution Substitution. Advanced Functional Materials 32 (31) : 2203610-2203610. ScholarBank@NUS Repository. https://doi.org/10.1002/adfm.202203610 | |
dc.identifier.issn | 1616-301X,1616-3028 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/243337 | |
dc.description.abstract | High strength, toughness, and conductivity are among the most sought-after properties of flexible electronics. However, existing engineering materials find it difficult to achieve both excellent mechanical properties and high conductivity. To address this challenge, this study proposes a facile yet versatile strategy for preparing super-tough conductive organo-hydrogels via freeze-casting assisted solution substitution (FASS). This FASS strategy enables the formation of organo-hydrogels in one step with exquisite hierarchical anisotropic structures coupled with synergistic strengthening and toughening effects across multiple length scales. As an exemplary material, the prepared polyvinyl alcohol (PVA) organo-hydrogel with solvent content up to 87 wt% exhibits a combination of high strength (6.5 MPa), high stretchability (1710% in strain), ultra-high toughness (58.9 MJ m−3), as well as high ionic conductivity up to 6.5 S m−1 with excellent strain sensitivity. The exceptional combination of mechanical properties and conductivity makes the PVA organo-hydrogel a promising flexible electronics material. In addition, the FASS strategy can also endow hydrogels with multi-functions, including thermo-healability, freezing tolerance and shape recoverability, and can be applied to various hydrogel materials, such as carboxymethyl cellulose, sodium alginate, and chitosan. Hence, this work provides an all-around solution for preparing advanced strong and tough conductive soft materials for a multitude of applications. | |
dc.publisher | Wiley | |
dc.source | Elements | |
dc.type | Article | |
dc.date.updated | 2023-07-21T05:45:27Z | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.doi | 10.1002/adfm.202203610 | |
dc.description.sourcetitle | Advanced Functional Materials | |
dc.description.volume | 32 | |
dc.description.issue | 31 | |
dc.description.page | 2203610-2203610 | |
dc.published.state | Published | |
Appears in Collections: | Elements Staff Publications |
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File | Description | Size | Format | Access Settings | Version | |
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2022-AFM-PVA organogel.pdf | 5.91 MB | Adobe PDF | OPEN | None | View/Download |
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