Table 1.

Properties of Baytubes^® C 70 P Multiwall carbon nanotubes (CNT).

Properties	Value	Unit
C-Purity	>95	%
Free amorphous carbon	–	–
Outer mean diameter	~13	nm
Inner mean diameter	~4	nm
Length	>1	μm
Bulk density	45–95	kg/m3
Elastic modulus	3596	MPa
Tension at break	72.9	MPa
Elongation at break	10.7	%
Izod-Impact at 23 °C	103	J/m