Silver nanoparticle inks comprising aminomethylsilanes

Patent metadata

Field	Value
Publication number	US-9758689-B2
Application number	US-201414517692-A
Country	US
Kind code	B2
Filing date	Oct 17, 2014
Priority date	Oct 17, 2014
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

An ink includes a plurality of silver nanoparticles, an aminomethylsilane viscosifier, and a hydrocarbon solvent. A method includes providing an ink including a plurality of silver nanoparticles, an aminomethylsilane viscosifier, and a hydrocarbon solvent, the method including printing an image on a substrate with the ink, and annealing the image on the substrate. An ink includes organoamine-stabilized silver nanoparticles, a viscosifier comprising N-(6-aminohexyl)aminomethyltriethoxysilane, and a hydrocarbon solvent.

First claim

What is claimed is:

1. An ink comprising:
a plurality of silver nanoparticles;
an aminomethylsilane viscosifier;
wherein the aminomethylsilane is selected from the group consisting of N-butyl-aza-2,2-dimethocysilacyclopentane, (cyclohexylaminomethyl)triethoxysilane, (cyclohexylaminomethyl)methyl diethoxysilane, (N-phenylaminomethyl)methyldimethoxysilane, (N-phenylaminomethyl)methyldiethoxysilane, (N-phenylaminomethyl)methyltriethoxysilane, diethylaminomethylmethyldiethoxysilane, N-(6-aminohexyl) aminomethyltriethoxysilane, aminoethylaminomethyltriethoxysilane, aminoethylaminomethylmethyldiethyoxysilane, piperazinylmethylmethyldiethoxysilane, morpholinylmethyltriethoxysilane, and morpholinylmethylmethyldiethoxysilane; and

a hydrocarbon solvent.

2. The ink of claim 1 , wherein the silver nanoparticles are stabilized.

3. The ink of claim 2 , wherein the stabilized silver nanoparticles comprise an organoamine.

4. The ink of claim 1 , wherein the silver nanoparticles are present from about 20 to about 80 weight percent.

5. The ink of claim 1 , wherein the aminomethylsilane viscosifier is present in an amount from about 0.01 weight percent to about 3.0 weight percent of the plurality of silver nanoparticles.

6. The ink of claim 1 , wherein the aminomethylsilane is N-(6-aminohexyl) aminomethyltriethoxysilane.

7. The ink of claim 1 , wherein the ink is an inkjet ink, a fleoxographic ink, a gravure ink, or a screen ink.

8. The ink of claim 1 , wherein when the ink is annealed in a film, the film has a conductivity in a range from about 1.0×10 5 S/cm to about 5.0×10 5 S/cm.

9. The ink of claim 1 , having a viscosity in a range from about 5 cps to about 5,000 cps.

10. A method comprising:
providing an ink comprising:
a plurality of silver nanoparticles;
an aminomethylsilane viscosifier;
wherein the aminomethylsilane is selected from the group consisting of N-butyl-aza-2,2-dimethocysilacyclopentane, (cyclohexylaminomethyl)triethoxysilane, (cyclohexylaminomethyl)methyl diethoxysilane, (N-phenylaminomethyl)methyldimethoxysilane, (N-phenylaminomethyl)methyldiethoxysilane, (N-phenylaminomethyl)methyltriethoxysilane, diethylaminomethylmethyldiethoxysilane, N-(6-aminohexyl) aminomethyltriethoxysilane, aminoethylaminomethyltriethoxysilane, aminoethylaminomethylmethyldiethyoxysilane, piperazinylmethylmethyldiethoxysilane, morpholinylmethyltriethoxysilane, and morpholinylmethylmethyldiethoxysilane; and
a hydrocarbon solvent;

printing an image on a substrate with the ink; and
annealing the image on the substrate.

11. The method of claim 10 , wherein the image is a printed circuit.

12. The method of claim 10 , wherein the silver nanoparticles are stabilized by an organoamine.

13. The method of claim 10 , wherein the aminomethylsilane viscosifier is N-(6-aminohexyl) aminomethyltriethoxysilane.

14. The method of claim 10 , wherein the aminomethylsilane viscosifier is present in an amount from about 0.01 weight percent to about 1.5 weight percent of the plurality of silver nanoparticles.

15. The method of claim 10 , wherein the ink has a viscosity from about 5 cps to about 5,000 cps.

16. An ink comprising:
organoamine-stabilized silver nanoparticles;
a viscosifier comprising N-(6-aminohexyl) aminomethyltriethoxysilane; and
a hydrocarbon solvent.

17. The ink of claim 16 , wherein the ink has a viscosity for inkjet printing, flexographic printing, gravure printing, or screen printing.

18. The ink of claim 16 , wherein N-(6-aminohexyl) aminomethyltriethoxysilane is present in an amount from about 0.01 weight percent to about 1.5 weight percent of the plurality of silver nanoparticles.

Assignees

• Xerox Corp

Inventors

• Wu Yiliang
• Song Guiqin
• Abraham Biby Esther
• Gagnon Yvan
• Liu Ping

Classifications

• C09D11/322

  Pigment inks · CPC title

• C09D11/30

  Inkjet printing inks · CPC title

• C08K5/544

  containing nitrogen · CPC title

• C09D11/03

  characterised by features other than the chemical nature of the binder · CPC title

• C09D11/36

  based on non-aqueous solvents · CPC title