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AssigneesNational Institute of Advanced Industrial Science and Technology, Asahi Kasei Kabushiki Kaisha
InventorsKen Mukai, Shuhei Ikenaga, Kinji Asaka, Toru Morita, Yujin Motoyama, Yuta Saito
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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 μm-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.
A carbon nanotube (CNT) fiber consisting of CNTs and bile salts, having a thickness of 0.01 μm to 3 mm, a coefficient of variation for thickness irregularity of 0.2 or less, and a distribution rate a of 40% or more and a distribution rate b of 70% or more as indicators of roundness, wherein in a spectrum obtained by resonance Raman spectroscopic measurement, when the maximum peak intensity in the range of 1550 cm−1 to 1650 cm−1 is defined as G and the maximum peak intensity in the range from 1300 cm−1 to 1400 cm−1 is defined as D, the ratio G/D is 30 or more, and the CNT fiber has a fiber density of 0.8 g/cm3 to 2.0 g/cm3.
Dependencies are inferred from the claim text.