English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

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

MPS-Authors
/persons/resource/persons122098

Zlotnikov,  Igor
Peter Fratzl, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

/persons/resource/persons121298

Fratzl,  Peter
Peter Fratzl, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

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.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-555B-6
Abstract
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.