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| Picture of a single wall carbon nanotube (SWCNT) |
The first worldwide presentation and publication on the flame retardant properties of carbon nanotubes were made at:
BCC conference "Flame retardancy of polymeric materials, June 2002, Stamford, Connecticut, USA
and in the journal "Fire & Materials", 2002, 26, 291-293
Title:
Carbon nanotubes - a new class of flame retardants for polymers
Author:
Dr. Guenter Beyer
Abstract:
Flame retardant nanocomposites were synthesized by melt-blending ethylene-vinyl acetate copolymers (EVA) with multi wall
carbon nanotubes. Fire property measurements by cone calorimeter revealed that the incorporation of multi wall carbon nanotubes
into EVA significantly reduced the peak heat release rates compared to the virgin EVA. Peak heat release rates of EVA with
multi wall carbon nanotubes were slightly improved compared to EVA nanocomposites based on modified layered silicates. Char
formation was the main important factor for these improvements. There was also a synergistic effect by the combination of
carbon nanotubes and modified layered silicates resulting in an overall more perfect closed surface with improved heat release
values.
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