Title:
カーボンナノチューブ分散液の製造方法およびカーボンナノチューブ分散液、複合材料用組成物の製造方法および複合材料の製造方法、並びに、複合材料および複合材料成形体
Document Type and Number:
Japanese Patent JP6652049
Kind Code:
B2
Abstract:
Provided is a method for efficiently producing a carbon nanotube (CNT) dispersion liquid of highly dispersed CNTs while also suppressing damage to the CNTs. The method for producing a carbon nanotube dispersion liquid includes a dispersing step that includes at least one cycle of dispersing treatment in which pressure is applied to a coarse dispersion liquid containing carbon nanotubes and a dispersion medium, the coarse dispersion liquid is fed under pressure, and shear force is applied to the coarse dispersion liquid such as to disperse the carbon nanotubes. A plurality of repetitions of the dispersing step are performed while altering the pressure that is applied to the coarse dispersion liquid. In at least one instance, the pressure applied to the coarse dispersion liquid is altered by at least 10 MPa between consecutive repetitions of the dispersing step.
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Inventors:
Masahiro Shigeta
Mitsugu Ueshima
Mitsugu Ueshima
Application Number:
JP2016523113A
Publication Date:
February 19, 2020
Filing Date:
May 18, 2015
Export Citation:
Assignee:
Zeon Corporation
International Classes:
C01B32/174; C08J3/20; C08K3/04; C08L101/00
Domestic Patent References:
| JP2013230951A | ||||
| JP2011213500A |
Foreign References:
| WO2013080912A1 | ||||
| WO2009028672A1 |
Attorney, Agent or Firm:
Kenji Sugimura
Yuta Terashima
Yuta Terashima