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Authors
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Pötschke, P. ; Bhattacharyya, A.R. ; Janke, A.
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Title
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Carbon nanotube-filled polycarbonate composites produced by melt mixing and their use in blends with polyethylene
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Date
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14.05.2004
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Number
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11498
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Abstract
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This paper presents composites of polycarbonate (PC) having different amounts of multiwalled carbon nanotubes (MWNT). The composites were prepared by diluting a masterbatch of PC with 15 wt% MWNT using melt mixing in a DACA-Micro Compounder. Electrical resistivity measurements indicated percolation of MWNT between 1 and 1.5 wt%. Transmission electron microscopy (TEM) showed excellent dispersion of the MWNT and indicated no preferred orientation of MWNT in extrusion direction. In addition, a conductive PC-2 wt% MWNT composite was melt mixed with polyethylene in order to get co-continuous blends exhibiting double percolation. Significant reduction in electrical resistivity of the blends could be achieved in compositions down to 30 vol% filled PC in which the total MWNT content was only 0.41 vol%. These blends exhibited co-continuous structures. (C) 2003 Elsevier Ltd. All rights reserved.
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Publisher
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Carbon
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Wikidata
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Q62173450
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Citation
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Carbon 42 (2004) 965-969
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DOI
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http://dx.doi.org/10.1016/j.carbon.2003.12.001
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Tags
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carbon nanotubes composites melt mixing polycarbonate electrical conductivity dispersion fabrication dispersion
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