Soft Porous Silicone Rubbers as Key Elements for the Realization of Acoustic Metamaterials
Language
en
Article de revue
This item was published in
Langmuir. 2015-02-12, vol. 31, p. pp. 3215-3221
American Chemical Society
English Abstract
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 ...Read more >
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......Read less <
English Keywords
Acoustic Metamaterials
Macroporous materials
European Project
Aerospace Research and Development
Metakoustik
Metakoustik
ANR Project
Advanced Materials by Design - ANR-10-LABX-0042
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
Origin
Hal imported