Omya Smartfill is a calcium carbonate with an innovative modification that outperforms conventional calcium carbonate in most engineering polymers like Polyamides and Polycarbonate and in biopolymers that hydrolyse easily during extrusion, such as PLA and PHA.
| Material | Modulus [MPa] | Elongation at break [%] | Charpy Notched Impact [kJ/m²] | HDT (120°C /1,80 Mpa) [°C ] |
|---|---|---|---|---|
| Daunyl DPN 27 AV (Natural PA6) | 3190 | 8 | 2.4 | 60 |
| PA6 + 30% Omya Smartfill 55 - AV | 3930 | 19 | 4.1 | 65 |
Omya Smartfill improves the overall performance of the PA6GF30 compound
PA6GF30 compound has improved overall stiffness, strength and toughness when replacing 5% glass fiber with 10-20% of Omya Smartfill.
| Omya Smartfill | ||||
| 0% | 10% | 20% | ||
| PA6GF30 | E-Modulus [N/mm2] | 8,070 | 9,010 | 10,600 |
| Charpy notched [kJ/m2] | 10.8 | 11.1 | 10.0 | |
| Yield Strength [N/mm²] | 142 | 135 | 130 | |
| PA6GF25 | E-Modulus [N/mm2] | 8,060 | 10,400 | |
| Charpy notched [kJ/m2] | 10.4 | 9.8 | ||
| Yield Strength [N/mm²] | 122 | 133 | ||
| PA6GF20 | E-Modulus [N/mm2] | 6,740 | 7,370 | |
| Charpy notched [kJ/m2] | 8.1 | 8.6 | ||
| Yield Strength [N/mm²] | 106 | 106 | ||
Polyamides are significantly more expensive and have a higher carbon footprint than Omya Smartfill. Using Omya Smartfill in polyamides and polyamide-glass fiber compounds improves both cost and carbon footprint.
Benefits of Omya Smartfill in Polyamide
- Higher ductility compared to other minerals
- Reduced warpage
- Improved surface finish in GF compounds
- Excellent whiteness
- Reduced carbon footprint
- Increased recycled content
| Material | Modulus | Yield Strength | Elongation at Break | Charpy Notched Impact | Opacity | Color Value | ||
|---|---|---|---|---|---|---|---|---|
| [MPa ] | [MPa ] | [%] | [kJ/m²] | [%] | L | a | b | |
| 94% PC + 6% TiO₂ | 2459 | 63 | 43 | 9 | 100 | 93 | 0 | 3 |
| 90% PC + 3% TiO₂ + 7% Omya Smartfill | 2546 | 60 | 23 | 12 | 100 | 92 | -1 | 3 |
Benefits of Omya Smartfill in Polycarbonate
- Improved impact strength in white Polycarbonate
- Increased stiffness
- Excellent whiteness
- Lower overall costs
- Reduced carbon footprint
- Increased recycled content*
*on selected grades
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Benefits of Omya Smartfill in PLA
- Increases stiffness and elongation
- Increases impact resistance
- Colors PLA white
- Reduces formulation costs
- Accelerates heat transfer (heating / cooling)
| Omya Smartfill | 0% | 10% | 20% | 40% | |
|---|---|---|---|---|---|
| Tensile Modulus | N/mm2 | 3200 | 3600 | 4100 | 4900 |
| Tensile Strength at Yield | N/mm2 | 68 | 57 | 48 | 38 |
| Elongation at Break | % | 5.5 | 50 | 90 | 28 |
| Melt Flow Rate 210 °C / 2.16kg | g/ 10 min | 23 | 21 | 20 | 23 |
| Opacity | % | 13 | 75 | 89 | 98 |
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