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241004s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202411700
|2 doi
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|a pubmed25n1260.xml
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Cheng, Jianfeng
|e verfasserin
|4 aut
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| 245 |
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|a Sterically Hindered Organogels with Self-Healing, Impact Response, and High Damping Properties
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 25.11.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Organogel materials are vital for impact or shock resistance because of their highly tailored dynamic properties. However, concurrently achieving excellent anti-impact and damping performances, high stability, and self-healing properties is challenging. Herein, a novel intelligent protective organogel (IPO) comprising a dynamic boronic ester containing poly(urethane-urea) as the network skeleton with a matching mesh size is synthesized, the network precisely entraps the hyperbranched fluid used as the bulky solvent via steric hindrance. The IPO exhibits self-healing ability, excellent impact responsiveness (a 1950-fold increase in flow stress under various impact speeds), and energy dissipation (the loss factor >0.8 from 10-4 to 104 Hz). The IPO maintains its dynamic mechanical properties during hot pressing and hydrolysis, exhibiting high stability. Furthermore, the IPO exhibits omnibearing protection. When used as a protective coating, the IPO dissipates the impact force by 87% and 89% of control upon passive and active impact, respectively. When used as a shock pad, it attenuates 91% of the amplitude in the high-frequency vibrations. This study offers a novel perspective on the synthesis of tailored sterically hindered organogel and provides valuable insights into the development of next-generation intelligent protective materials that exhibit impact and vibration resistance
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|a Journal Article
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|a hyperbranched fluid
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4 |
|a impact resistance
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|a organogel
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|a polymer network
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| 650 |
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4 |
|a steric hinderance
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1 |
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|a Fu, Songbao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Shitao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Zhipeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Chunfeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Guangzhao
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 47 vom: 04. Nov., Seite e2411700
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:47
|g day:04
|g month:11
|g pages:e2411700
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202411700
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