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Particle concentration of coated and uncoated filament in ppm.
| filament |
average diameter (d) in mm |
Cross-sectional area (A) = π × (d/2)2 |
added particles in ppm = ((Acoated filament/Acontrol group) −1) × 106 |
|---|---|---|---|
| control group | |||
| PETG | 1.748 | 2.400 | 0 |
| PLA | 1.748 | 2.400 | 0 |
| coated filament with nHA | |||
| PETG + nHA | 1.751 | 2.408 | 3.435 |
| PLA + nHA | 1.751 | 2.408 | 3.435 |
| coated filament with nFA | |||
| PETG + nFA | 1.752 | 2.411 | 4.582 |
| PLA + nFA | 1.752 | 2.411 | 4.582 |
