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The Role of Specific Interaction and Selective Localization of Multiwall Carbon Nanotubes on the Electrical Conductivity and Phase Morphology of Multicomponent Polymer Blends

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Title The Role of Specific Interaction and Selective Localization of Multiwall Carbon Nanotubes on the Electrical Conductivity and Phase Morphology of Multicomponent Polymer Blends
 
Creator BOSE, S
BHATTACHARYYA, AR
KHARE, RA
KAMATH, SS
KULKARNI, AR
 
Subject ACRYLONITRILE-BUTADIENE-STYRENE
CO-CONTINUOUS BLENDS
CRYSTALLIZATION BEHAVIOR
FILLED POLYCARBONATE
PA6/ABS BLENDS
POLYETHYLENE
DISPERSION
POLYAMIDE-6
COMPOSITES
BLACK
 
Description Multicomponent polymer blends involving polyamide6 (PA6), polypropylene (PP), acrylonitrile-butadiene-styrene (ABS) and high density polyethylene (HDPE) with multiwall carbon nanotubes (MWNT) were prepared by melt mixing technique to achieve conducting composites. MWNT were either compounded directly or by employing a masterbatch dilution approach in binary (PA6/ABS), ternary (PA6/PP/ABS) and quaternary (PA6/PP/ABS/HDPE) blends. To facilitate "network-like" structure MWNT were pretreated with either sodium salt of 6-aminohexanoic acid or octadecyl tri-phenyl phosponium bromide. Multicomponent blends with pretreated MWNT utilizing masterbatch dilution approach showed significant improvements in the bulk electrical conductivity as compared to blends prepared by direct addition approach at 2 wt % MWNT content. Phase morphology of these blends revealed co-continuous type of morphology wherein MWNT were found to be selectively localized in the PA6 phase. The hetero-nucleating action of MWNT was manifested in increased crystallization temperature of mainly PA6 phase of the blends indicating preferential localization of MWNT in the PA6 phase. POLYM. ENG. SCI., 51:1987-2000, 2011. (C) 2011 Society of Plastics Engineers
 
Publisher WILEY-BLACKWELL
 
Date 2012-06-26T04:57:30Z
2012-06-26T04:57:30Z
2011
 
Type Article
 
Identifier POLYMER ENGINEERING AND SCIENCE,51(10)1987-2000
0032-3888
http://dx.doi.org/10.1002/pen.21998
http://dspace.library.iitb.ac.in/jspui/handle/100/13920
 
Language English