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US 8,709,292 B2Granted
Polymer composites having highly dispersed carbon nanotubes
AssigneeUniversity of Central Florida Research Foundation, Inc.
InventorsQun Huo, Saiful Khondaker, Jianhua Zou, Lei Zhai, Hui Chen, Harish Muthuraman
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Abstract
A carbon nanotube-polymer composite includes a polymer continuous phase having at least a first polymer, and a plurality of carbon nanotubes dispersed in the polymer continuous phase. The carbon nanotubes are non-functionalized nanotubes. The carbon nanotubes are between 0.05 and 40 weight % of the composite. At least 98% of the carbon nanotubes are not involved in nanotube bundles.
Claims13
A carbon nanotube-polymer composite, comprising:
- a polymer continuous phase comprising at least a first polymer, and
- a plurality of carbon nanotubes dispersed in said polymer continuous phase, wherein said carbon nanotubes are non-functionalized nanotubes,
- a short chain fluorinated carboxylic acid in a concentration from 1 part per billion (ppb) to 1 part per thousand (ppt) of said composite;
- wherein said plurality of carbon nanotubes comprise between 0.05 and 40 weight % of said composite, and
- wherein at least 98% of said plurality of carbon nanotubes are not involved in nanotube bundles.
2 more elements
A carbon nanotube-polymer composite, formed by a process comprising:
- forming a mixture solution comprising a plurality of carbon nanotubes dispersed in a co-solvent comprising an organic solvent and a second solvent comprising a short chain fluorinated carboxylic acid, said fluorinated carboxylic acid having a boiling point below 150° C., being less oxidizing than nitric acid, and being soluble in both said organic solvent and water,
- mixing at least a first polymer with said mixture solution to form a polymer comprising mixture, and
- removing said co-solvent from said polymer comprising mixture to form a dispersed nanotube-polymer composite,
- wherein said composite comprises:
- a polymer continuous phase comprising at least said first polymer, and
- wherein said plurality of carbon nanotubes are dispersed in said polymer continuous phase, wherein said plurality of carbon nanotubes are non-functionalized nanotubes, and wherein said plurality of carbon nanotubes comprise between 0.05 and 40 weight % of said composite,
- wherein at least 98% of said plurality of carbon nanotubes are not involved in nanotube bundles.
4 more elements
Dependencies are inferred from the claim text.