Double walled carbon nanotubes (DWCNTs) in powder form consist of two concentric graphene cylinders. They combine the electrical and mechanical properties of SWCNTs with the enhanced stability of multi-walled structures. They are ideal for use in high-performance composite materials, conductive additives, etc.
Industrial DWCNTs are available in two models:
GTCO-290 – Standard conductivity grade
GTCO-291 – Enhanced purity and dispersion grade
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| Model | Appearance | Outside diameter(nm) | Length(μm) | Ash content(%) | Powder resistivity(μΩ·m) | Specific surface area(㎡/g) | Tamping density(g/cm³) | Particle size d50(μm) | Moisture content(%) |
|---|---|---|---|---|---|---|---|---|---|
| GTCO-290 | Black powder, No caking and impurities | 3-8 | ≤50 | ≤0.5 | 1000-1500 | 500-700 | 0.01-0.06 | ≤20 | ≤0.5 |
| GTCO-291 | Black powder, No caking and impurities | 3-8 | ≤50 | ≤0.5 | 900-1300 | 450-700 | 0.001-0.04 | ≤25 | ≤1.0 |
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