Water vapor assisted aramid nanofiber reinforcement for strong, tough and ionically conductive organohydrogels as high-performance strain sensors
Article
Wu, Yongchuan, Zhang, Ya, Liao, Zimin, Wen, Jing, Zhang, Hechuan, Wu, Haidi, Liu, Zhanqi, Shi, Yongqian, Song, Pingan, Tang, Longcheng, Xue, Huaiguo and Gao, Jiefeng. 2024. "Water vapor assisted aramid nanofiber reinforcement for strong, tough and ionically conductive organohydrogels as high-performance strain sensors." Materials Horizons. 11 (5), pp. 1272-1282. https://doi.org/10.1039/d3mh01560b
| Article Title | Water vapor assisted aramid nanofiber reinforcement for strong, tough and ionically conductive organohydrogels as high-performance strain sensors |
|---|---|
| ERA Journal ID | 211075 |
| Article Category | Article |
| Authors | Wu, Yongchuan, Zhang, Ya, Liao, Zimin, Wen, Jing, Zhang, Hechuan, Wu, Haidi, Liu, Zhanqi, Shi, Yongqian, Song, Pingan, Tang, Longcheng, Xue, Huaiguo and Gao, Jiefeng |
| Journal Title | Materials Horizons |
| Journal Citation | 11 (5), pp. 1272-1282 |
| Number of Pages | 11 |
| Year | 2024 |
| Publisher | The Royal Society of Chemistry |
| Place of Publication | United Kingdom |
| ISSN | 2051-6347 |
| 2051-6355 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1039/d3mh01560b |
| Web Address (URL) | https://pubs.rsc.org/en/content/articlelanding/2024/mh/d3mh01560b |
| Abstract | Conductive organohydrogels have gained increasing attention in wearable sensors, flexible batteries, and soft robots due to their exceptional environment adaptability and controllable conductivity. However, it is still difficult for conductive organohydrogels to achieve simultaneous improvement in mechanical and electrical properties. Here, we propose a novel “water vapor assisted aramid nanofiber (ANF) reinforcement” strategy to prepare robust and ionically conductive organohydrogels. Water vapor diffusion can induce the pre-gelation of the polymer solution and ensure the uniform dispersion of ANFs in organohydrogels. ANF reinforced organohydrogels have remarkable mechanical properties with a tensile strength, stretchability and toughness of up to 1.88 ± 0.04 MPa, 633 ± 30%, and 6.75 ± 0.38 MJ m−3, respectively. Furthermore, the organohydrogels exhibit great crack propagation resistance with the fracture energy and fatigue threshold as high as 3793 ± 167 J m−2 and ∼328 J m−2, respectively. As strain sensors, the conductive organohydrogel demonstrates a short response time of 112 ms, a large working strain and superior cycling stability (1200 cycles at 40% strain), enabling effective monitoring of a wide range of complex human motions. This study provides a new yet effective design strategy for high performance and multi-functional nanofiller reinforced organohydrogels. |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | Yangzhou University, China |
| Fuzhou University, China | |
| Centre for Future Materials | |
| Hangzhou Normal University, China |
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