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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201802477
|2 doi
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|a pubmed24n0953.xml
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|a (DE-627)NLM285903624
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|a (NLM)29947065
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Eckert, Alexander
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Exceptionally Ductile and Tough Biomimetic Artificial Nacre with Gas Barrier Function
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 21.08.2018
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Synthetic mimics of natural high-performance structural materials have shown great and partly unforeseen opportunities for the design of multifunctional materials. For nacre-mimetic nanocomposites, it has remained extraordinarily challenging to make ductile materials with high stretchability at high fractions of reinforcements, which is however of crucial importance for flexible barrier materials. Here, highly ductile and tough nacre-mimetic nanocomposites are presented, by implementing weak, but many hydrogen bonds in a ternary nacre-mimetic system consisting of two polymers (poly(vinyl amine) and poly(vinyl alcohol)) and natural nanoclay (montmorillonite) to provide efficient energy dissipation and slippage at high nanoclay content (50 wt%). Tailored interactions enable exceptional combinations of ductility (close to 50% strain) and toughness (up to 27.5 MJ m-3 ). Extensive stress whitening, a clear sign of high internal dynamics at high internal cohesion, can be observed during mechanical deformation, and the materials can be folded like paper into origami planes without fracture. Overall, the new levels of ductility and toughness are unprecedented in highly reinforced bioinspired nanocomposites and are of critical importance to future applications, e.g., as barrier materials needed for encapsulation and as a printing substrate for flexible organic electronics
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|a Journal Article
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|a barrier applications
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|a bioinspired materials
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4 |
|a nacre-mimetics
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4 |
|a nanoclay
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| 650 |
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4 |
|a toughness
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| 700 |
1 |
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|a Rudolph, Tobias
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guo, Jiaqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mang, Thomas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Walther, Andreas
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 32 vom: 26. Aug., Seite e1802477
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:30
|g year:2018
|g number:32
|g day:26
|g month:08
|g pages:e1802477
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| 856 |
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|u http://dx.doi.org/10.1002/adma.201802477
|3 Volltext
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