A Solvent‐Free Dispersion Method for the Preparation of PET/MWCNT Composites | Zendy

Santoro Gonzalo | Zendy; Gómez Marian A. | Zendy; Marco Carlos | Zendy; Ellis Gary | Zendy

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

Author(s) -

Santoro Gonzalo,

Gómez Marian A.,

Marco Carlos,

Ellis Gary

Publication year - 2010

Publication title -

macromolecular materials and engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.913

H-Index - 96

eISSN - 1439-2054

pISSN - 1438-7492

DOI - 10.1002/mame.200900384

Subject(s) - materials science , masterbatch , nanocomposite , composite material , ultimate tensile strength , thermal stability , dispersion (optics) , polymer , crystallization , compounding , nanotube , modulus , solvent , carbon nanotube , chemical engineering , optics , engineering , physics , chemistry , organic chemistry

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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