Aktifit VM
Aktifit is an activated Silfit Z 91 produced by modifying the surface with special functional groups. The by-products split off during the treatment reaction are largely removed during the production process which firmly attaches the functional groups to the filler surface. This helps minimize undesirable side effects, as they are potentially encountered with in-situ mixing (direct addition of additives to the compound).
Product characteristics | Value | Unit | Testing method |
|---|---|---|---|
| Functionalization | vinyl | ||
| Color values L* Color values a* Color values b* | 96.3 -0.1 1.0 | according to CIELAB | |
| Color wetted | Extra white | ||
| Particle size D50 Particle size D97 | 2.3 11.0 | µm | based on ISO 13320 |
| Residue > 40 µm | 10 | mg/kg | based on DIN EN ISO 787 Teil 18 |
| Volatile matter at | 0.1 | % | based on DIN EN ISO 787 Teil 2 |
| Electrical conductivity | not applicable | µS/cm | based on DIN EN ISO 787 Teil 14 |
| pH Value | not applicable | based on DIN EN ISO 787 Teil 9 | |
| Density Bulk density Tamped density | 2.6 0.37 0.70 | g/cm³ | based on DIN EN ISO 787 Teil 10 based on DIN ISO 903-1976 based on DIN EN ISO 787 Teil 11 |
| Spec. Surface area (BET) Oil absorption | 10 65 | m²/g g/100 g | based on DIN ISO 9277 based on DIN EN ISO 787 Teil 5 |
| Hardness silica/kaolinite | 7/4.5 | mg | based on Mohs |
| Refractive index n | 1.55 | sin α / sin β | |
| Water solubility Acid solubility | not applicable not applicable | % | based on DIN EN ISO 787 Teil 3 based on DIN 53770 (0,1 N HCL) |
| Chemical Analysis SiO2 Al2O3 Fe2O3 | 86 13 < 1 | % | based on DIN 51001 (RFA) |
| Mineralogical Composition Neuburg silica Calcined kaolinite | 60 40 | % | based on X-ray diffraction pattern analysis combined with Rietveld |
| Equilibrium moisture content at 25°C and 50% relative humidity and 80% relative humidity and 90% relative humidity | 0.05 0.07 0.08 | % | based on DIN 66138 |
| Water absorption | ≤ 0.1 | ml/g | based on Baumann |
| hydrophobic | ✓ | ||
| reactive | ✓ |
Packaging
Variant | Weight |
|---|---|
| Paper bag | 25 kg |
| EVA bag | |
| Big bag type 1 | ≤ 550 kg |
| Big bag type 2 | ≤ 900 kg |
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