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HERO ID
5726241
Reference Type
Journal Article
Title
High-shear processing induced homogenous dispersion of pristine multiwalled carbon nanotubes in a thermoplastic elastomer
Author(s)
Li, Y; Shimizu, H
Year
2007
Is Peer Reviewed?
1
Journal
Polymer
ISSN:
0032-3861
Publisher
ELSEVIER SCI LTD
Location
OXFORD
Volume
48
Issue
8
Page Numbers
2203-2207
DOI
10.1016/j.polymer.2007.02.066
Web of Science Id
WOS:000246330200003
URL
http://www.sciencedirect.com/science/article/pii/S0032386107002108
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Abstract
We report a high-shear processing technology that allows the homogenous dispersion of unmodified multiwalled carbon nanotubes (UMWNTs) in a thermoplastic elastomer, poly(styrene-b-butadiene-co-butylene-b-styrene) (SBBS). We demonstrated that the dispersion of UMWNTs in a polymer matrix depends greatly on the shear stress exerted during melt processing. Mechanical tests showed that the tensile modulus, tensile strength and elasticity of the composites with fine nanotube dispersion processed at a high-shear rate are much higher than those of the composites processed at a low shear rate. The results indicated that high-shear processing is an effective method of improving the dispersion of unmodified carbon nanotubes in a polymer matrix.
Keywords
high-shear processing; carbon nanotube; nanocomposite
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