Table 3 The main properties of used conductive fillers—graphite powders.
From: Electrically conductive composite materials with incorporated waste and secondary raw materials
Selected parameters | Unit | Primary graphite PG-F | Primary graphite PG-C | Waste graphite WG-GF | Waste graphite WG-HF |
|---|---|---|---|---|---|
Particle type | [-] | Irregular with rough surface | Flat flakes | Particles of different types | Particles of different types |
Bulk density of compacted aggregate | [kg/m3] | 230 | 550 | 540 | 540 |
Volumetric weight | [kg/m3] | 2410 | 2250 | 2460 | 2320 |
Granularity D (0.1) | [µm] | 1.50 | 83.12 | 6.70 | 7.72 |
D (0.5) | [µm] | 2.91 | 197.02 | 23.22 | 36.05 |
D (0.9) | [µm] | 5.26 | 390.43 | 117.41 | 175.38 |
Specific surface | [cm2/g] | 19,595 | 1507 | 5571 | 6661 |
Water absorption capacity WA(5) | [%] | 190 | 26 | 105 | 91 |
Resistivity | [Ω·cm] | 0.168 | 0.106 | 0.090 | 0.062 |
