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Self-Organizing Alignment of Carbon Nanotubes in Thermoplastic Polyurethane

✍ Scribed by Wei Chen; Xiaoming Tao

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
217 KB
Volume
26
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

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.

magnified imageAlignment of single‐walled carbon nanotubes in thermoplastic polyurethane during polar solvent exposure.

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Melt Dispersion and Electrospinning of Non-Functionalized Multiwalled Carbon Nanotubes in Thermoplastic Polyurethane
✍ Matthew T. Hunley; Petra Pötschke; Timothy E. Long 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 421 KB

## Abstract Nanoscale fibers with embedded, aligned, and percolated non‐functionalized multiwalled carbon nanotubes (MWCNTs) were fabricated through electrospinning dispersions based on melt‐compounded thermoplastic polyurethane/MWCNT nanocomposite, with up to 10 wt.‐% MWCNTs. Transmission electron