Method for fast dispersing carbon nanotube in aqueous solution
US7999028B2 · kind B2 · utility
18Cited by
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Key dates
| Filing date | Jun 21, 2006 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Nov 25, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for fast dispersing carbon nanotubes in an aqueous solution. In this method, the carbon nanotubes are added into an aqueous solution of a nontoxic surfactant, and then dispersed therein through ultrasonic oscillation. This uniform dispersion can maintain high stability for at least two months without aggregation, suspension or precipitation. This dispersion is suitable for calibrating concentration of the carbon nanotubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.