Strong, tough and environment-tolerant organohydrogels for flaw-insensitive strain sensing
Article
Wang, Yuqing, Liu, Zhanqi, Liu, Yuntao, Yan, Jun, Wu, Haidi, Zhang, Hechua, Li, Huamin, Wang, Junjie, Xue, Huaiguo, Wang, Ling, Shi, Yongqian, Tang, Longcheng, Song, Pingan and Gao, Jiefeng. 2024. "Strong, tough and environment-tolerant organohydrogels for flaw-insensitive strain sensing." Materials Horizons. 11 (22), pp. 5662-5673. https://doi.org/10.1039/d4mh00740a
| Article Title | Strong, tough and environment-tolerant organohydrogels for flaw-insensitive strain sensing |
|---|---|
| ERA Journal ID | 211075 |
| Article Category | Article |
| Authors | Wang, Yuqing, Liu, Zhanqi, Liu, Yuntao, Yan, Jun, Wu, Haidi, Zhang, Hechua, Li, Huamin, Wang, Junjie, Xue, Huaiguo, Wang, Ling, Shi, Yongqian, Tang, Longcheng, Song, Pingan and Gao, Jiefeng |
| Journal Title | Materials Horizons |
| Journal Citation | 11 (22), pp. 5662-5673 |
| Number of Pages | 12 |
| 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/d4mh00740a |
| Web Address (URL) | https://pubs.rsc.org/en/content/articlelanding/2024/mh/d4mh00740a |
| Abstract | Conductive organohydrogels are promising for strain sensing, while their weak mechanical properties, poor crack propagation resistance and unstable sensing signals during long-term use have seriously limited their applications as high-performance strain sensors. Here, we propose a facile method, i.e., solvent exchange assisted hot-pressing, to prepare strong yet tough, transparent and anti-fatigue ionically conductive organohydrogels (ICOHs). The densified polymeric network and improved crystallinity endow ICOHs with excellent mechanical properties. The tensile strength, toughness, fracture energy and fatigue threshold of ICOHs can reach 36.12 ± 4.15 MPa, 54.57 ± 2.89 MJ m−3, 43.44 ± 8.54 kJ m−2 and 1212.86 ± 57.20 J m−2, respectively, with a satisfactory fracture strain of 266 ± 33%. In addition, ICOH strain sensors with freezing and drying resistance exhibit excellent cycling stability (10 000 cycles). More importantly, the fatigue resistance allows the notched strain sensor to work normally with no crack propagation and output stable and reliable sensing signals. Overall, the unique flaw-insensitive strain sensing makes ICOHs promising in the field of wearable and durable electronics. |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
| Public Notes | The accessible file is the accepted version of the paper. Please refer to the URL for the published version. |
| Byline Affiliations | Yangzhou University, China |
| Anqing Normal University, China | |
| Fuzhou University, China | |
| Hangzhou Normal University, China | |
| Centre for Future Materials |
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