[23a-B203-1~11] 17.1 Carbon nanotubes & other nanocarbon materials

[23a-B203-8] Structural analysis for Carbon Nanotube Fibers Produced by Continuous Wet-Process

〇(M2)Momoko Sakai¹, Toshihiko Fujimori^1,2, Takahiro Inoue², Zhikai Li¹, Yoshiya Kishibe¹, Takamasa Onoki², Takeshi Hikata², Soichiro Okubo², Samuel Jeong¹, Keishi Akada¹, Jun-ichi Fujita¹ (1.Univ. of Tsukuba, 2.Sumitomo Electric Industries, Ltd.)

Keywords:carbon nanotube, wet-process, structural analysis

Carbon nanotubes (CNTs) are expected to be the next generation light-weight,and high-strength materials. It is important to be more aligned and densified for improving the strength of CNT fibers. Moreover, development of a continuous and stable processing technique is important for the fabrication of uniform fibers. We have focused on the CNT dispersion using chlorosulfonic acid (CSA) and have developed a continuous wet-processing technique. In this study, we investigated how the feed rates of the CSA-CNT solution affect to the alignment and macrostructure of CNT fibers. In this presentation, we will demonstrate that CNT fibers produced by high flow rate, compared to low flow rate, are more aligned and uniform due to the higher share stress in the fast CSA flow.