Self-Organizing Alignment of Carbon Nanotubes in Thermoplastic Polyurethane

A simple compounding technique for the fabrication of polymer nanocomposites with single‐walled carbon nanotubes having exceptional alignment and improved mechanical properties is described. The aligned‐nanotube composite was prepared by dissolving single‐walled carbon nanotubes in a solution of the...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2005-11, Vol.26 (22), p.1763-1767
Main Authors: Chen, Wei, Tao, Xiaoming
Format: Article
Language:English
Subjects:
alignment
Applied sciences
carbon nanotubes
Composites
compounding
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
polyurethanes
Technology of polymers
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Description
Summary:A simple compounding technique for the fabrication of polymer nanocomposites with single‐walled carbon nanotubes having exceptional alignment and improved mechanical properties is described. The aligned‐nanotube composite was prepared by dissolving single‐walled carbon nanotubes in a solution of thermoplastic polyurethane and tetrahydrofuran. Solvent‐polymer interactions that induce the orientation of soft chain segments during the swelling and moisture curing stage are believed to serve as a driving force for the macroscopic alignment of the carbon nanotubes. Alignment of single‐walled carbon nanotubes in thermoplastic polyurethane during polar solvent exposure.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.200500531