Chemically-assisted alignment of nanotubes within extensible structures
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United States of America Patent
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Aug 21, 2012
Grant Date -
Mar 19, 2009
app pub date -
Jul 9, 2008
filing date -
Jul 9, 2007
priority date (Note) -
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Abstract
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 system can include opposing rollers around which an extensible structure may be wrapped, mechanisms to rotate the rollers independently or away from one another as they rotate to stretch the extensible structure, and a reservoir from which a chemical mixture may be dispensed to wet the extensible structure to help in the stretching process.
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