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Products
Items
SWNT
DWNT
MWNT
A-MWNT
MWNTs
External Diameter
<2 nm
<5 nm
<10nm
Bundled
10~20 nm
Aligned
<10nm; 10~20nm;10~30nm;20~40nm; 40~60nm; 60~100nm
Purity of CNTs
SW:50%
MW:40%
DW:50%
≥95 %
(Mainly 15±3nm)
Amorphous Carbon
<5 %
<2 %
Ash
≤2 wt%
≤0.2 wt %
Length
5~15μm
5~15μm (L-Type)
1~2μm (S-Type)
Special Surface Area
450~600 m2/g
40~300 m2/g
Interlayer Distance
0.34 nm
Pore Volume
0.8 cm3/g
Electric Conductivity
10E-4 s/cm *
Thermal Conductivity
2800W/m·K *
Ablating Temperature
520~610℃
(in air)
>550℃ ( In air)
3500℃(In inert atmosphere or vacuum)
IG/ID
(Raman data)
>9
0< IG/ID<1
0< IG/ID<2
*Refer to :
a) Che JW, Cagin T, Goddard Ⅲ WA. Nanotechnology,2000,11:65
b) PG Collins, MS Arnold, P Avouris Science .2001,292:706