Inkjet ink compositions comprising carbon nanotubes
OwnerXueying Huang, Gann Xu +1inventors
InventorsXueying Huang, Gann Xu, Nicole Reinartz
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Abstract
The invention provides new ink jet ink compositions comprising chemically functionalized or physically modified, singly dispersed carbon nanotubes. The ink jet ink compositions are suitable for use in conventional ink jet printing and may be used in printing applications on paper or textile fabrics, or to prepare conductive or semiconductive patterns of carbon nanotubes for electronic applications.
Claims22
An ink jet ink composition comprising:
- (a) an aqueous carrier medium suitable for ink jet printing;
- and
- (b) chemically functionalized or physically modified, singly dispersed carbon nanotubes, wherein the carbon nanotubes have an average outer diameter of less than or equal to about 10 nanometers and a length between about 100 nanometers and about 1 micrometer.
A method of producing an ink jet ink composition comprising chemically functionalized and singly dispersed carbon nanotubes, comprising the steps of:
- (a) providing a population of undispersed carbon nanotubes in solution;
- (b) contacting the carbon nanotubes of (a) with a radical generating agent in the presence of an acid for a time sufficient to permit the carbon nanotubes to disperse;
- and
- (c) mixing the dispersed carbon nanotubes of (b) with an aqueous carrier medium suitable for ink jet printing.
A method of producing a carbon nanotube pattern on a substrate comprising the steps of:
- (a) providing an ink jet ink composition comprising (i) an aqueous carrier medium suitable for ink jet printing and (ii) chemically functionalized or physically modified, and singly dispersed carbon nanotubes, wherein the carbon nanotubes have a mean outer diameter of less than or equal to about 10 nanometers and a length between about 100 nanometers and about 1 micrometer;
- (b) printing a pattern of the ink jet ink composition of (a) on the substrate using an ink jet printer, and
- (c) drying the ink jet ink composition on the substrate of (b) to form the carbon nanotube pattern.
Dependencies are inferred from the claim text.