Optimization of Extrusion Parameters for Preparing PCL-Layered Silicate Nanocomposites Supported by Modeling of Twin-Screw Extrusion
PCL‐based nanoclay (layered silicate) nanocomposites are prepared using a small scale intermeshing co‐rotating twin‐screw extruder. Improving the level of nanoclay dispersion in PCL nanocomposites is obtained by changing the extrusion parameters. Increasing the screw speed and decreasing the through...
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Published in | Macromolecular materials and engineering Vol. 298; no. 2; pp. 210 - 220 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
01.02.2013
WILEY‐VCH Verlag Wiley John Wiley & Sons, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | PCL‐based nanoclay (layered silicate) nanocomposites are prepared using a small scale intermeshing co‐rotating twin‐screw extruder. Improving the level of nanoclay dispersion in PCL nanocomposites is obtained by changing the extrusion parameters. Increasing the screw speed and decreasing the throughput leads to an improved dispersion quality, as observed from the improved mechanical properties of the nanocomposites as well as from their clearly affected rheological and crystallization behavior. Furthermore, a commercially available software that simulates the twin‐screw extrusion process (LUDOVIC) is used to asses the processing parameters applied for making the nanocomposites.
High shear rates and broad residence time distributions prove beneficial for the nanofiller dispersion of PCL/nanoclay nanocomposites prepared by melt extrusion. Although the intercalation is not significantly affected, the extent of exfoliation is clearly improved. Commercially available software facilitates the selection of extrusion conditions that may generate a good nanofiller dispersion. |
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Bibliography: | ark:/67375/WNG-1T9F5947-R istex:3C0EBA54F356E3063513A8FC29895BD944CFCDE9 ArticleID:MAME201100419 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1438-7492 1439-2054 |
DOI: | 10.1002/mame.201100419 |