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Influence of processing parameters during small-scale batch melt mixing on the dispersion of MWCNTs in a poly(propylene) matrix
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Mayoral, Beatriz, Lopes, Jose and McNally, Tony (2014) Influence of processing parameters during small-scale batch melt mixing on the dispersion of MWCNTs in a poly(propylene) matrix. Macromolecular Materials and Engineering, Volume 299 (Number 5). pp. 609-621. doi:10.1002/mame.201300158 ISSN 1438-7492.
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Official URL: http://dx.doi.org/10.1002/mame.201300158
Abstract
The relationship between varying processing variables, rotor speed (50 to 200 rpm) and mixing time (10 to 30 min), and MWCNT loading (0.5 to 2.0 wt%), on MWCNT dispersion in a poly(propylene) during batch melt mixing was investigated. MWCNT dispersion was improved by increasing rotor speed and/or mixing time, 200 rpm and 30 min being optimum, although composites prepared employing 100 rpm and 20 min were the most electrically conducting, (<100 S cm−1). PP shear viscosity increased with increasing MWCNT loading yielding a rheological percolation of ∼0.5 wt% MWCNTs. Volume resistivity of the composites decreased with increasing rotor speed and for mixing times up to 20 min only, the former yielding an electrical percolation of ∼0.65 wt% MWCNTs at 200 rpm.mame201300158-gra-0001
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
Journal or Publication Title: | Macromolecular Materials and Engineering | ||||||||
Publisher: | Wiley - V C H Verlag GmbH & Co. KGaA | ||||||||
ISSN: | 1438-7492 | ||||||||
Official Date: | May 2014 | ||||||||
Dates: |
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Volume: | Volume 299 | ||||||||
Number: | Number 5 | ||||||||
Page Range: | pp. 609-621 | ||||||||
DOI: | 10.1002/mame.201300158 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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