Printable mixed fillers epoxy composites

Patent metadata

Field	Value
Publication number	US-11781027-B2
Application number	US-202117340770-A
Country	US
Kind code	B2
Filing date	Jun 7, 2021
Priority date	Jun 7, 2021
Publication date	Oct 10, 2023
Grant date	Oct 10, 2023

Abstract

A composition of matter comprises at least 10 wt % epoxy functionalized two-dimensional shaped particles, carbon nanotubes in the range of 0.1 to 5 wt %, epoxy resin and a curing agent. A method of manufacturing a composition of matter includes mixing epoxy resin, carbon nanotubes and a solvent to produce a material, drying the material, and mixing the material with a curing agent to product the composition of matter. A method of printing a composition of matter includes producing the composition of matter by combining epoxy functionalized graphene, carbon nanotubes, epoxy base resin, and a curing agent, extrusion printing the composition of matter into a desired pattern, and curing the pattern.

First claim

What is claimed is:

1. A composition of matter comprising at least 10 wt % epoxy reacted fluorographene particles functionalized two-dimensional shaped particles, carbon nanotubes in the range of 0.1 to 5 wt %, epoxy resin and a curing agent.

2. A composition of matter comprising at least 10 wt % epoxy functionalized two-dimensional shaped particles, carbon nanotubes in the range of 0.1 to 5 wt %, epoxy resin and 1-Ethyl-3-methylimidazolium dicyanamide as a curing agent.

3. The composition of matter as claimed in claim 1 , wherein the two-dimensional shaped particles comprise one or more of functionalized graphene, clays, and alumina platelets.

4. The composition of matter as claimed in claim 1 , wherein the carbon nanotubes are one of either bare or functionalized.

5. The composition of matter as claimed in claim 4 , wherein the carbon nanotubes are functionalized with one of either at least one carboxyl group or at least one epoxy group.

6. The composition of matter as claimed in claim 1 , wherein the composition of matter has a viscosity of at least 1000 Pascal-seconds at zero shear.

7. The composition of matter as claimed in claim 1 , wherein the composition of matter has a viscosity of at least 10 Pascal-seconds at 100/s shear rate.

8. The composition of matter as claimed in claim 1 , wherein the carbon nanotubes comprise single-walled carbon nanotubes.

9. The composition of matter as claimed in claim 1 , wherein the curing agent comprises an ionic liquid.

10. The composition of matter as claimed in claim 1 , wherein the curing agent comprises 1-Ethyl-3-methylimidazolium dicyanamide.

11. The composition of matter as claimed in claim 1 , wherein the composition of matter has improved toughness over compositions of matter without carbon nanotubes of at least 50 percent.

12. The composition of matter as claimed in claim 1 , wherein the composition of matter has improved tensile strength over compositions of matter without carbon nanotubes of at least 10 percent.

13. The composition of matter as claimed in claim 2 , wherein the two-dimensional shaped particles comprise one or more of functionalized graphene, clays, and alumina platelets.

14. The composition of matter as claimed in claim 2 , wherein the carbon nanotubes are one of either bare or functionalized.

15. The composition of matter as claimed in claim 14 , wherein the carbon nanotubes are functionalized with one of either at least one carboxyl group or at least one epoxy group.

16. The composition of matter as claimed in claim 2 , wherein the composition of matter has a viscosity of at least 1000 Pascal-seconds at zero shear.

17. The composition of matter as claimed in claim 2 , wherein the composition of matter has a viscosity of at least 10 Pascal-seconds at 100/s shear rate.

18. The composition of matter as claimed in claim 2 , wherein the carbon nanotubes comprise single-walled carbon nanotubes.

19. The composition of matter as claimed in claim 2 , wherein the composition of matter has improved toughness over compositions of matter without carbon nanotubes of at least 50 percent.

20. The composition of matter as claimed in claim 2 , wherein the composition of matter has improved tensile strength over compositions of matter without carbon nanotubes of at least 10%.

Assignees

• Palo Alto Res Ct Inc
• Xerox Corp

Inventors

• Pandey Rahul
• Wei Junhua
• Iftime Gabriel
• Kalb Jamie

Classifications

• C09D11/102 Primary

  containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds · CPC title

• B29B7/90

  Fillers or reinforcements {, e.g. fibres} · CPC title

• B29C64/106

  using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material · CPC title

• B29C64/314

  Preparation · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title