Chemically-assisted alignment of nanotubes within extensible...

Details Chemically-assisted alignment of nanotubes within extensible... Chemically-assisted alignment of nanotubes within extensible...

B - Operations, Transporting

29

C

B29C 55/06 (2006.01) C09C 1/44 (2006.01) C09C 3/04 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2693403

A method and system for aligning nanotubes within an extensible structure such as a yarn or non-woven sheet. The method includes providing an extensible structure having non-aligned nanotubes, adding a chemical mixture to the extensible structure so as to wet the extensible structure, and stretching the extensible structure so as to substantially align the nanotubes within the extensible structure. The sys-tem can include opposing rollers around which an extensible structure may be wrapped, mechanisms to rotate the rollers in-dependently or away from one another as they rotate to stretch the extensible structure, and a reservoir from which a chemi-cal mixture may be dispensed to wet the extensible structure to help in the stretching process.

L'invention concerne un procédé et un système d'alignement de nanotubes dans une structure extensible telle qu'un fil ou une feuillle non tissée. Le procédé consiste à utiliser une structure extensible présentant des nanotubes non alignés, à ajouter un mélange chimique à la structure extensible de manière à mouiller la structure extensible et à étirer la structure extensible de manière à aligner sensiblement les nanotubes dans la structure extensible. Le système peut comprendre des rouleaux opposés autour desquels peut être enroulée une structure extensible, des mécanismes de rotation des rouleaux de manière indépendante ou séparés l'un de l'autre tandis qu'ils tournent pour étirer la structure extensible, et un réservoir à partir duquel peut être distribué un mélange chimique pour mouiller la structure extensible afin de faciliter le processus d'étirement.

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