Fabrication and characterization of deformable porous matrices with controlled pore characteristics

Enthalten in
Transport in porous media 
Volume
107
Issue
1
Start Page
79
End Page
94
Publisher DOI
10.1007/s11242-014-0426-0
Scopus ID
2-s2.0-84925504785
Publisher
Springer Science + Business Media B.V.
The subject of this study concerns a method of manufacture of porous media for which the solid matrix is capable of experiencing deformation under the influence of the flow field. Conventionally, the matrix design parameters, elasticity and pore geometry, cannot be precisely controlled and the choice of parameters is limited to existing available media. Here a solution is provided that uses an indirect solid-free form fabrication process that combines 3D Printing with an infused Polydimethylsiloxane elastomer to provide a highly deformable matrix with controlled pore architecture. The manufacturing method is presented in detail. Local microscopy analysis of the manufactured matrix shows that the method has a high capability to accurately create pore structures at length scales as low as 0.75 mm. Experimental flow measurements further validate that the intended pore geometry is able to be reproduced in highly deformable matrices. The experimentally determined permeability of the deformable matrix is determined to agree with the intended within 95 %.
Schlagworte
3D Printing
Deformable Porous Media
Manufacture
DDC Class
004: Informatik
530: Physik
600: Technik
620: Ingenieurwissenschaften