ZIMNY, Kévin; MERLIN, Aurore; BA, Abdoulaye; ARISTÉGUI, Christophe; BRUNET, Thomas; MONDAIN-MONVAL, Olivier

doi:10.1021/la504720f

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Licencia de uso del documento

ZIMNY, Kévin
Centre de recherches Paul Pascal [CRPP]

MERLIN, Aurore
Centre de recherches Paul Pascal [CRPP]

BA, Abdoulaye

Idioma

Article de revue

Este ítem está publicado en

Langmuir. 2015-02-12, vol. 31, p. pp. 3215-3221

American Chemical Society

Resumen en inglés

In this work, macroporous materials made of polydimethylsiloxane, a soft silicone rubber, are prepared using UV polymerization with an emulsion-templating procedure. The porosity of the final materials can be precisely controlledby adjusting the volume of the dispersed phase. We show that the porous structure of the materials is the template of thedroplets of the initial emulsions. Mechanical tests show that the materials Young’s moduli decrease with the porosity of thematerials. Acoustic measurements indicate that, in such a porous elastomeric matrix, the sound speed also decreasesdramatically as soon as the porosity increases to attain values of as low as 80 m/s......< Leer menos

Palabras clave en inglés

Acoustic Metamaterials

Macroporous materials

URI

https://oskar-bordeaux.fr/handle/20.500.12278/77877

DOI

http://dx.doi.org/10.1021/la504720f

Proyecto europeo

Aerospace Research and Development
Metakoustik

Proyecto ANR

Advanced Materials by Design - ANR-10-LABX-0042
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003

Orígen

Importado de Hal

Centros de investigación

Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295