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Effects of surfactants on spinning carbon nanotube fibers by an electrophoretic method

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Author(s): Jun Ma, Jie Tang, Qian Cheng, Han Zhang, Norio Shinya and Lu-Chang Qin

Journal: Science and Technology of Advanced Materials
ISSN 1468-6996

Volume: 11;
Issue: 6;
Start page: 065005;
Date: 2010;
Original page

ABSTRACT
Thin fibers were spun from a colloidal solution of single-walled carbon nanotubes (SWNTs) using an electrophoretic method. Sodium dodecylbenzenesulfonate (NaDDBS) was chosen as a surfactant and showed good performance owing to its special chemical structure. The highest spinning velocity reached 0.5 mm s−1. The resulting SWNT fibers had a tensile strength of 400 MPa and a conductivity of 355 S cm−1. Their mechanical and electrical properties were markedly improved after adding NaDDBS as the dispersant in water.
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