Low-temperature self-healing polyurethane adhesives via dual synergetic crosslinking strategy
Abstract: Damage to polymer adhesives is one of the most common reasons for structural integrity damage of composite solid propellants. The introduction of self-repairing technology into the adhesive is expected to solve this problem. However, at low temperatures, the self-repairing and mechanical properties of the materials are greatly impaired, thereby limiting the application of self-repairing adhesives in composite solid propellants. In this study, based on the dual synergistic crosslinking strategy, a polyurethane adhesive exhibiting excellent self-healing and mechanical properties at low temperatures was successfully prepared. The adhesive exhibited high self-repairing efficiency and ultra-long elongation at break at low temperatures. Specifically, at a low temperature of −40°C, the self-repair efficiency was over 70% and the elongation at break was over 1,400%, which were much higher than the results of the control group. Moreover, the strength was comparable to that of the control group. This polyurethane adhesive shows excellent self-healing and mechanical properties at low temperatures and is expected to provide the strong self-healing ability and mechanical properties for composite solid propellants, alleviating the problem of structural integrity damage.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Low-temperature self-healing polyurethane adhesives via dual synergetic crosslinking strategy ; volume:23 ; number:1 ; year:2023 ; extent:10
e-Polymers ; 23, Heft 1 (2023) (gesamt 10)
- Creator
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Zhang, Yu
Zheng, Jian
Zhang, Xiao
Liu, Yahao
- DOI
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10.1515/epoly-2022-0083
- URN
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urn:nbn:de:101:1-2023070114021969703196
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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2025-08-14T10:45:48+0200
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Zhang, Yu
- Zheng, Jian
- Zhang, Xiao
- Liu, Yahao
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