Carbon nano tube processing method, processing apparatus, and carbon nano tube dispersion liquid, carbon nano tube powder
AssigneeHamamatsu Photonics K.K.
InventorsTomonori Kawakami, Mitsuo Hiramatsu
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Abstract
An apparatus 1A for processing carbon nanotubes (CNTs) includes: a processing chamber 3 for housing to-be-processed liquid 2 with CNT raw material 5 to be fragmented being suspended in a solvent 4; and a pulse irradiation light source 10 for applying pulse light having a predetermined wavelength for fragmentation of the CNTs in the solvent 4 to the to-be-processed liquid 2 housed in the processing chamber 3. This achieves a method and apparatus for processing carbon nanotubes that can fragment CNTs efficiently, and carbon nanotube dispersion liquid and carbon nanotube powder produced by the same.
Claims19
A method for processing carbon nanotubes comprising the steps of:
- preparing to-be-processed liquid with carbon nanotubes as raw material being suspended in a solvent;
- introducing a substantially continuous flow of the to-be-processed liquid through a light irradiation processing chamber;
- fragmenting the carbon nanotubes in the solvent in the length direction thereof by exposing the to-be-processed liquid as the to-be-processed liquid flows through the light irradiation processing chamber to pulse light having a predetermined wavelength;
- while the to-be-processed liquid is being stirred by a stirring means
- sending the to-be-processed liquid, after being exposed to the pulse light, to a recovery/circulation processing chamber adapted to receive the flow of the to-be-processed liquid;
- and
- circulating the to-be-processed liquid in a circulation flow path including the light irradiation processing chamber and the recovery/circulation processing chamber.
An apparatus for processing carbon nanotubes comprising:
- a light irradiation processing chamber adapted to receive a substantially continuous flow of a to-be-processed liquid with carbon nanotubes as raw material being suspended in a solvent;
- an irradiation light source for applying pulse light having a predetermined wavelength for fragmentation of the carbon nanotubes in the solvent to the flow of the to-be-processed liquid flowing through the light irradiation processing chamber;
- while the to-be-processed liquid is being stirred by a stirring means
- a recovery/circulation processing chamber adapted to receive the flow of the to-be-processed liquid after being exposed to the pulse light is sent;
- and
- a fluid pump for circulating the to-be-processed liquid in a circulation flow path including the light irradiation processing chamber and the recovery/circulation processing chamber.
A method for processing carbon nanotubes comprising the steps of:
- preparing to-be-processed liquid with carbon nanotubes as raw material being suspended in a solvent;
- substantially filling a light irradiation processing chamber with the to-be-processed liquid;
- stirring the to-be-processed liquid filling the light irradiation processing chamber to disperse the carbon nanotubes in the solvent;
- and
- fragmenting the carbon nanotubes in the solvent in the length direction thereof by exposing the to-be-processed liquid in the light irradiation processing chamber to pulse light having a predetermined wavelength while the to-be-processed liquid is being stirred by a stirring means.
An apparatus for processing carbon nanotubes comprising:
- a light irradiation processing chamber adapted to be substantially filled with a to-be-processed liquid with carbon nanotubes as raw material being suspended in a solvent;
- stirring means for stirring the to-be-processed liquid filling the light irradiation processing chamber to disperse the carbon nanotubes in the solvent;
- and
- an irradiation light source for applying pulse light having a predetermined wavelength for fragmentation of the carbon nanotubes in the solvent of the to-be-processed liquid filling the light irradiation processing chamber while the to-be-processed liquid is being stirred by the stirring means.
Dependencies are inferred from the claim text.