DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6070

Title: Electrical, rheological and morphological studies in co-continuous blends of polyamide 6 and acrylonitrile-butadiene-styrene with multiwall carbon nanotubes prepared by melt blending
Authors: BOSE, S
BHATTACHARYYA, AR
KULKARNI, AR
POTSCHKE, P
Keywords: immiscible polymer blends
epoxy-resin
conductivity
percolation
black
functionalization
nanocomposites
particles
Issue Date: 2009
Publisher: ELSEVIER SCI LTD
Citation: COMPOSITES SCIENCE AND TECHNOLOGY, 69(3-4), 365-372
Abstract: Multiwall carbon nanotubes (MWNT) were incorporated in melt-mixed co-continuous blends of polyamide 6 (PA6) and acrylonitrile-butadiene-styrene (ABS) using a conical twin-screw microcompounder. The state of dispersion of MWNT in the blends was assessed through AC electrical conductivity measurements and melt-rheological investigations. The electrical and rheological percolation threshold in PA6/ABS blends was similar to 3-4 and similar to 1-2 wt% MWNT, respectively. A unique reactive modifier (sodium salt of 6-amino hexanoic acid, Na-AHA) was employed to facilitate 'network-like' structure of MWNT and to confine them in a specific phase. This was achieved by establishing specific interactions with the delocalized 'pi-electron' clouds of MWNT and melt-interfacial reaction during melt-mixing. The electrical percolation threshold was significantly reduced in the blends (similar to 0.25 wt%) in the presence of Na-AHA modified MWNT and even coincided with the rheological percolation threshold. Significant refinement in the co-continuous structure was also observed in the presence of Na-AHA modified MWNT. (C) 2008
URI: http://dx.doi.org/10.1016/j.compscitech.2008.10.024
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6070
http://hdl.handle.net/10054/6070
ISSN: 0266-3538
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback