Upcycling of Carbon Fiber/Thermoset Composites into High-Performance Elastomers and Repurposed Carbon Fibers
© 2024 Wiley‐VCH GmbH..
Recycling of carbon fiber-reinforced polymer composites (CFRCs) based on thermosetting plastics is difficult. In the present study, high-performance CFRCs are fabricated through complexation of aromatic pinacol-cross-linked polyurethane (PU-AP) thermosets with carbon fiber (CF) cloths. PU-AP thermosets exhibit a breaking strength of 95.5 MPa and toughness of 473.6 MJ m-3 and contain abundant hydrogen-bonding groups, which can have strong adhesion with CFs. Because of the high interfacial adhesion between CF cloths and PU-AP thermosets and high toughness of PU-AP thermosets, CF/PU-AP composites possess a high tensile strength of >870 MPa. Upon heating in N,N-dimethylacetamide (DMAc) at 100 °C, the aromatic pinacols in the CF/PU-AP composites can be cleaved, generating non-destructive CF cloths and linear polymers that can be converted to high-performance elastomers. The elastomers are mechanically robust, healable, reprocessable, and damage-resistant with an extremely high tensile strength of 74.2 MPa and fracture energy of 149.6 kJ m-2. As a result, dissociation of CF/PU-AP composites enables the recovery of reusable CF cloths and high-performance elastomers, thus realizing the upcycling of CF/PU-AP composites.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - (2024) vom: 15. März, Seite e202403972 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yang, Tiantian [VerfasserIn] |
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| Links: |
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| Themen: |
Carbon Fiber-Reinforced Polymer Composites |
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| Anmerkungen: |
Date Revised 05.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/anie.202403972 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM369814479 |
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| 520 | |a © 2024 Wiley‐VCH GmbH. | ||
| 520 | |a Recycling of carbon fiber-reinforced polymer composites (CFRCs) based on thermosetting plastics is difficult. In the present study, high-performance CFRCs are fabricated through complexation of aromatic pinacol-cross-linked polyurethane (PU-AP) thermosets with carbon fiber (CF) cloths. PU-AP thermosets exhibit a breaking strength of 95.5 MPa and toughness of 473.6 MJ m-3 and contain abundant hydrogen-bonding groups, which can have strong adhesion with CFs. Because of the high interfacial adhesion between CF cloths and PU-AP thermosets and high toughness of PU-AP thermosets, CF/PU-AP composites possess a high tensile strength of >870 MPa. Upon heating in N,N-dimethylacetamide (DMAc) at 100 °C, the aromatic pinacols in the CF/PU-AP composites can be cleaved, generating non-destructive CF cloths and linear polymers that can be converted to high-performance elastomers. The elastomers are mechanically robust, healable, reprocessable, and damage-resistant with an extremely high tensile strength of 74.2 MPa and fracture energy of 149.6 kJ m-2. As a result, dissociation of CF/PU-AP composites enables the recovery of reusable CF cloths and high-performance elastomers, thus realizing the upcycling of CF/PU-AP composites | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Carbon Fiber-Reinforced Polymer Composites | |
| 650 | 4 | |a Chemical Upcycling | |
| 650 | 4 | |a Elastomers | |
| 650 | 4 | |a Materials Science | |
| 650 | 4 | |a Sustainable Chemistry | |
| 700 | 1 | |a Lu, Xingyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xiaohan |e verfasserin |4 aut | |
| 700 | 1 | |a Wei, Xiang |e verfasserin |4 aut | |
| 700 | 1 | |a An, Ni |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Yixuan |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Wenjie |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xiang |e verfasserin |4 aut | |
| 700 | 1 | |a Fang, Xu |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Junqi |e verfasserin |4 aut | |
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