Membranes with embedded nanotubes for selective permeability

Details Membranes with embedded nanotubes for selective permeability Membranes with embedded nanotubes for selective permeability

B - Operations, Transporting

01

D

B01D 67/00 (2006.01) B01D 69/12 (2006.01) B01D 71/76 (2006.01)

Patent

CA 2729737

Membranes for filtration by size exclusion are formed from open-ended nanotubes embedded in a polymeric matrix. The matrix forms a layer whose thickness is substantially less than the average length of the nanotubes, allowing the nanotubes to be randomly oriented throughout the matrix while providing channels extending through the layer for the selective passage of molecular species or particles based on size.

La présente invention concerne des membranes pour filtration par exclusion de tailles formées à partir de nanotubes à extrémité ouverte incorporés dans une matrice polymère. La matrice forme une couche dont lépaisseur est sensiblement inférieure à la longueur moyenne des nanotubes, permettant d'orienter les nanotubes de manière aléatoire dans lensemble de la matrice tout en formant des canaux sétendant à travers la couche pour le passage sélectif despèces moléculaires ou de particules en fonction de la taille.

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