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  Gas barrier properties of bio-inspired Laponite–LC polymer hybrid films

Tritschler, U., Zlotnikov, I., Fratzl, P., Schlaad, H., Grüner, S., & Cölfen, H. (2016). Gas barrier properties of bio-inspired Laponite–LC polymer hybrid films. Bioinspiration & Biomimetics, 11(3): 035005. doi:10.1088/1748-3190/11/3/035005.

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Tritschler, Ulrich, Autor
Zlotnikov, Igor1, Autor           
Fratzl, Peter1, Autor           
Schlaad, Helmut, Autor
Grüner, Simon, Autor
Cölfen, Helmut, Autor
Affiliations:
1Peter Fratzl, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863294              

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 Zusammenfassung: Bio-inspired Laponite (clay)−liquid crystal (LC) polymer composite materials with high clay fractions (>80) and a high level of orientation of the clay platelets, i.e. with structural features similar to the ones found in natural nacre, have been shown to exhibit a promising behavior in the context of reduced oxygen transmission. Key characteristics of these bio-inspired composite materials are their high inorganic content, high level of exfoliation and orientation of the clay platelets, and the use of a LC polymer forming the organic matrix in between the Laponite particles. Each single feature may be beneficial to increase the materials gas barrier property rendering this composite a promising system with advantageous barrier capacities. In this detailed study, Laponite/LC polymer composite coatings with different clay loadings were investigated regarding their oxygen transmission rate. The obtained gas barrier performance was linked to the quality, respective Laponite content and the underlying composite micro- and nanostructure of the coatings. Most efficient oxygen barrier properties were observed for composite coatings with 83 Laponite loading that exhibit a structure similar to sheet-like nacre. Further on, advantageous mechanical properties of these Laponite/LC polymer composites reported previously give rise to a multifunctional composite system.

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 Datum: 2016-05-26
 Publikationsstatus: Erschienen
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 Identifikatoren: BibTex Citekey: 1748-3190-11-3-035005
DOI: 10.1088/1748-3190/11/3/035005
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Titel: Bioinspiration & Biomimetics
  Kurztitel : Bioinspir. Biomim.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: London : Inst. of Physics
Seiten: - Band / Heft: 11 (3) Artikelnummer: 035005 Start- / Endseite: - Identifikator: ISSN: 1748-3190