Attaining high electrical conductivity and toughness in PA6 by combined addition of MWCNT and rubber

Tough polyamide 6 (PA6)/multi-walled carbon nanotube (MWCNT) nanocomposites modified by a maleated styrene/ethylene–butylene/styrene (mSEBS) were obtained in the melt state. The resistance calculations showed that both the conductivity values and the percolation threshold was not consequence of the...

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Vydané v:Composites. Part A, Applied science and manufacturing Ročník 43; číslo 9; s. 1482 - 1489
Hlavní autori: González, Imanol, Eguiazábal, José Ignacio, Nazabal, Jon
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Kidlington Elsevier Ltd 01.09.2012
Elsevier
Predmet:
A. Nano-structures
Applied sciences
B. Electrical properties
B. Impact behaviour
B. Mechanical properties
carbon
carbon nanotubes
Composites
electrical conductivity
Exact sciences and technology
Forms of application and semi-finished materials
Laminates
melting
modulus of elasticity
nanocomposites
particle size
polyamides
Polymer industry, paints, wood
rubber
Technology of polymers
viscosity
B. Electrical properties
A. Nano-structures
B. Mechanical properties
B. Impact behaviour
Clay
Elastic modulus
Particle size
Electrical conductivity
Electrical properties
SEBS
Carbon nanotubes
Mechanical properties
Thermoplastic rubber
Composite material
Amide 6 polymer
Triblock copolymer
Multiwalled nanotube
Impact strength
Aliphatic polymer
Percolation
Nanocomposite
ISSN:1359-835X, 1878-5840
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Shrnutí:Tough polyamide 6 (PA6)/multi-walled carbon nanotube (MWCNT) nanocomposites modified by a maleated styrene/ethylene–butylene/styrene (mSEBS) were obtained in the melt state. The resistance calculations showed that both the conductivity values and the percolation threshold was not consequence of the physical contact among the nanotubes, and a double percolation phenomenon was observed after rubber addition. The addition of rubber did not affect the dispersion of the nanotubes, but the presence of MWCNT decreased the rubber particle size due to an increase in viscosity. Besides a high electrical conductivity and an elastic modulus similar to that of the PA6, the joint presence of 5% in weight (wt.%) MWCNT and 20wt.% mSEBS was able to provide both a large impact strength and clear ductile behaviour. The matrix yielding of the carbon nanotube-based nanocomposites was less extensive than in nanoclay-based composites. However, they were efficient enough to lead to a clear multi-functionality.
Bibliografia:http://dx.doi.org/10.1016/j.compositesa.2012.03.013
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SourceType-Scholarly Journals-1
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ISSN:1359-835X
1878-5840
DOI:10.1016/j.compositesa.2012.03.013