National Institute of Advanced Industrial Science and Technology

The Furukawa Electric Co., Ltd.

Asahi Kasei Kabushiki Kaisha

Ken Mukai

Kinji Asaka

Motoo Yumura

Takeshi Saito

Yuta Saito

Toru Morita

Kenji Hata

Takushi Sugino

Michihiro Shimada

Hiroaki Rikihisa

Masato Tachibana

Yujin Motoyama

Shuhei Ikenaga

The purpose of the present disclosure is to provide a CNT fiber that is constituted of aligned carbon nanotubes (CNTs), is thin, has little irregularity in thickness, has excellent winding properties when undergoing coiling processing, and has superior conductivity. Provided is a CNT fiber constituted of carbon nanotubes (CNTs) having a thickness of 0.01 &#x3bc;m-3 mm, having a coefficient of variation for irregularity in thickness of 0.2 or less, having a distribution rate a for deviation from roundness of 40% or greater, and a distribution rate b of 70% or greater. Also provided is a method for manufacturing the CNT fiber.

Fiber constituted from carbon nanotube and method for manufacturing same

An object of the present invention is to provide a CNT yarn having excellent conductivity and strength, and a method for producing the same. The present invention provides a drawn yarn comprising carbon nanotubes and having a drawing rate of 10 to 50%.

Drawn carbon nanotube yarn and production method therefor

A method for producing an aggregated thread structure includes (a) a process of dispersing carbon nanotube to a first solvent, which is water or a mixed solvent containing organic solvent and water, with a surfactant, to create a dispersion and (b) a process of injecting the dispersion, in which carbon nanotube is dispersed, to a condensing liquid, which is a second solvent that differs from the first solvent, to thereby aggregate and spin carbon nanotube. The aggregated thread structure containing carbon nanotube has: a bulk density of 0.5 g/cmor more; a weight reduction rate up to 450&#xb0; C. of 50% or less; a G/D ratio for resonance Raman scattering measurement of 10 or more; and an electric conductivity of 50 S/cm or more.

Aggregated thread structure, production method thereof, and electric wire using the same

The present invention provides an actuator exhibiting improved performance. The actuator is formed of an electrically conductive thin film formed from an ionic liquid and carbon nanotubes having an aspect ratio of not less than 10; or an electrically conductive thin film formed from an ionic liquid and carbon nanotubes having a length of not less than 50 &#x3bc;m.

Electrically conductive thin film formed from an ionic liquid and carbon nanotubes having a high aspect ratio, and actuator element comprising the thin film

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Ikeda, Japan

Ken Mukai