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PRODUCTION METHOD OF SPUN CARBON NANOTUBE FIBER, SPUN CARBON NANOTUBE FIBER, CARBON NANOTUBE DISPERSION, AND EVALUATION METHOD OF CARBON NANOTUBE DISPERSION
PRODUCTION METHOD OF SPUN CARBON NANOTUBE FIBER, SPUN CARBON NANOTUBE FIBER, CARBON NANOTUBE DISPERSION, AND EVALUATION METHOD OF CARBON NANOTUBE DISPERSION
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机译:纺丝碳纳米管纤维,纺丝碳纳米管纤维,碳纳米管分散体的生产方法以及碳纳米管分散体的评估方法
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摘要
PROBLEM TO BE SOLVED: To anticipate whether a CNT dispersion is one from which a spun CNT fiber with excellent characteristics can be obtained or not before the spinning step.SOLUTION: An evaluation method of a CNT dispersion is an evaluation method of a CNT dispersion containing a CNT dispersed body, and has: a measurement step to check on whether at least one of following conditions (1)-(3) is satisfied or not by measurement; and a determination step to determine that the CNT dispersion is suitable as a raw material of a spun CNT fiber in the case in which at least one of the conditions (1)-(3) is satisfied in the measurement step. (1) A size expressed in terms of sphericity of the CNT dispersed body measured with a disk-type frequency-classified centrifugal sedimentation apparatus is 25 nm-1.3 μm. (2) A distribution chart of the size expressed in terms of sphericity of the CNT dispersed body measured with a disk-type frequency-classified centrifugal sedimentation apparatus has a maximum value at 30 nm-1 μm. (3) The peak wavelength of plasmon far-infrared resonance of the CNT dispersed body is 300 cmor less.SELECTED DRAWING: None
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