| Autor: |
Chongnan Ye, Wenjian Li, Vincent S.D. Voet, Rudy Folkersma, Yutao Pei, Katja Loos |
| Přispěvatelé: |
Macromolecular Chemistry & New Polymeric Materials, Advanced Production Engineering |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Advanced Materials Technologies, 8(8):2201670. Wiley |
| ISSN: |
2365-709X |
| DOI: |
10.1002/admt.202201670 |
| Popis: |
Despite rapid advancements in the development of triboelectric nanogenerators (TENG), mechanical defects generated during their working condition limit the service lifetime of these devices. Polyester-based vitrimers can offer a solution to solve this issue via their dynamic bond exchange reactions. However, they often require high temperatures and a long time to crosslink, rendering them not useful for large-scale TENG fabrication. To solve these issues, a self-healable vitrimer-based triboelectric nanogenerator (VITENG) is developed based on diacrylate poly(dimethylsiloxane) (AA-PDMS) via a fast thiol-Michael reaction. By including 2,3-dihydroxypropyl methacrylate (DHPMA), hydroxy end dangling side chains are generated in the matrix, which increased the PDMS network's flexibility and transesterification efficiency. Efficient transesterification occurs on the abundant dynamic β-hydroxy ester bonds in the PDMS network, resulting in 100% efficient mechanical damage repair. The VITENG demonstrates a good performance with an output voltage of 135 V under a load of 10 N, demonstrating the potential for mechanical energy harvesters with long lifetimes and high design flexibility. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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