Utilization of poly(methyl methacrylate) – carbon nanotube and polystyrene – carbon nanotube in situ polymerized composites as masterbatches for melt mixing

Carbon nanotubes (CNTs) were melt mixed directly or by using an in situ polymerized masterbatch into a matrix polymer, polystyrene (PS) or poly(methyl methacrylate) (PMMA). The mechanical properties of the composites were mostly determined by the amount of CNTs, and not by the use of directly melt m...

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Main Authors: M. Lahelin, M. Annala, J. Seppala
Format: Article
Language:English
Published: Budapest University of Technology 2012-10-01
Series:eXPRESS Polymer Letters
Subjects:
Online Access:http://www.expresspolymlett.com/letolt.php?file=EPL-0003548&mi=cd
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spelling doaj-fb752a4b2e964c9e8976dac33ddf14e22020-11-24T21:22:17ZengBudapest University of Technology eXPRESS Polymer Letters1788-618X2012-10-0161081482510.3144/expresspolymlett.2012.87Utilization of poly(methyl methacrylate) – carbon nanotube and polystyrene – carbon nanotube in situ polymerized composites as masterbatches for melt mixingM. LahelinM. AnnalaJ. SeppalaCarbon nanotubes (CNTs) were melt mixed directly or by using an in situ polymerized masterbatch into a matrix polymer, polystyrene (PS) or poly(methyl methacrylate) (PMMA). The mechanical properties of the composites were mostly determined by the amount of CNTs, and not by the use of directly melt mixed CNTs or the use of the masterbatch. In contrast, the electrical resistivity of the composites was dependent on the manner in which the CNTs were added to the matrix polymer. When there was increased interfacial adhesion between the components, as for PS and the CNTs, the use of directly melt mixed CNTs gave better resistivity results. Without strong interactions between the CNTs and the matrix, as with PMMA and CNTs, the use of a tailored masterbatch had a significant effect on properties of the final composites. The molecular weight and viscosity of masterbatches can be varied and when the PMMA-masterbatch had optimized viscosity with respect to the PMMA matrix, electrical resistivity of the final composites decreased noticeably.http://www.expresspolymlett.com/letolt.php?file=EPL-0003548&mi=cdPolymer compositesNanocompositesMaterial testingTailor-made polymersCarbon nanotubes
collection DOAJ
language English
format Article
sources DOAJ
author M. Lahelin
M. Annala
J. Seppala
spellingShingle M. Lahelin
M. Annala
J. Seppala
Utilization of poly(methyl methacrylate) – carbon nanotube and polystyrene – carbon nanotube in situ polymerized composites as masterbatches for melt mixing
eXPRESS Polymer Letters
Polymer composites
Nanocomposites
Material testing
Tailor-made polymers
Carbon nanotubes
author_facet M. Lahelin
M. Annala
J. Seppala
author_sort M. Lahelin
title Utilization of poly(methyl methacrylate) – carbon nanotube and polystyrene – carbon nanotube in situ polymerized composites as masterbatches for melt mixing
title_short Utilization of poly(methyl methacrylate) – carbon nanotube and polystyrene – carbon nanotube in situ polymerized composites as masterbatches for melt mixing
title_full Utilization of poly(methyl methacrylate) – carbon nanotube and polystyrene – carbon nanotube in situ polymerized composites as masterbatches for melt mixing
title_fullStr Utilization of poly(methyl methacrylate) – carbon nanotube and polystyrene – carbon nanotube in situ polymerized composites as masterbatches for melt mixing
title_full_unstemmed Utilization of poly(methyl methacrylate) – carbon nanotube and polystyrene – carbon nanotube in situ polymerized composites as masterbatches for melt mixing
title_sort utilization of poly(methyl methacrylate) – carbon nanotube and polystyrene – carbon nanotube in situ polymerized composites as masterbatches for melt mixing
publisher Budapest University of Technology
series eXPRESS Polymer Letters
issn 1788-618X
publishDate 2012-10-01
description Carbon nanotubes (CNTs) were melt mixed directly or by using an in situ polymerized masterbatch into a matrix polymer, polystyrene (PS) or poly(methyl methacrylate) (PMMA). The mechanical properties of the composites were mostly determined by the amount of CNTs, and not by the use of directly melt mixed CNTs or the use of the masterbatch. In contrast, the electrical resistivity of the composites was dependent on the manner in which the CNTs were added to the matrix polymer. When there was increased interfacial adhesion between the components, as for PS and the CNTs, the use of directly melt mixed CNTs gave better resistivity results. Without strong interactions between the CNTs and the matrix, as with PMMA and CNTs, the use of a tailored masterbatch had a significant effect on properties of the final composites. The molecular weight and viscosity of masterbatches can be varied and when the PMMA-masterbatch had optimized viscosity with respect to the PMMA matrix, electrical resistivity of the final composites decreased noticeably.
topic Polymer composites
Nanocomposites
Material testing
Tailor-made polymers
Carbon nanotubes
url http://www.expresspolymlett.com/letolt.php?file=EPL-0003548&mi=cd
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AT jseppala utilizationofpolymethylmethacrylate8211carbonnanotubeandpolystyrene8211carbonnanotubeinsitupolymerizedcompositesasmasterbatchesformeltmixing
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