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A Solvent-Free Dispersion Method for the Preparation of PET/MWCNT Composites

✍ Scribed by Gonzalo Santoro; Marian A. Gómez; Carlos Marco; Gary Ellis

Book ID
102941004
Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
747 KB
Volume
295
Category
Article
ISSN
1438-7492

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✦ Synopsis

Abstract

A simple, easily accessible solvent‐free method for the dispersion of MWCNTs into PET is proposed, based on the preparation of a microparticulate polymer/nanotube masterbatch via cryogenic impact‐milling and its subsequent melt blending with the bulk polymer. Thermal and mechanical properties of nanocomposites prepared using this method were evaluated as a function of nanotube concentration. Thermal stability was improved, and superior crystallization behavior of PET in the nanocomposites was observed. Significant improvements of around 25% in tensile strength and tensile modulus of the nanocomposites was achieved using this strategy, with only 0.25 wt.‐% MWCNT, compared to previous literature data where 1 wt.‐% MWCNT was employed.

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