COLL 69 |
| Philippe Poulin1, S. Badaire1, C. Zakri1, M. Maugey1, and P. Launois2. (1) Centre de Recherche Paul Pascal - CNRS, Avenue Schweitzer 33600, Pessac, France, (2) Laboratoire de Physique des solides, Univ. Paris Sud, Orsay, France |
| A variety of approaches is currently explored by different groups to process carbon nanotubes into new functional materials. In this presentation, we focus on a simple coagulation process that allows continuous spinning of nanotube fibers. The method consists in dispersing the nanotubes in a surfactant solution, re-condensing the nanotubes in the flow of a coagulating polymer solution to form a nanotube mesh, and then collating this mesh to a nanotube fiber. The initial dispersions are characterized using light scattering and dielectric spectroscopy. The alignment of carbon nanotubes is studied using Xrays diffraction. We discuss the main features of the process and its optimization for different types of nanotubes. We show how carbon nanotubes fibers can be improved using mechanical, chemical or thermal treatments. We believe that already obtained fibers could be potentially useful in applications such as sensors, actuators or conducting fabrics. |
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Surface Chemistry on Carbonaceous Materials
Division of Colloid and Surface Chemistry |