Calcined product, vinyl functionalized.
Aktifit VM offers very low moisture content. Thereby the blistering potential will be reduced and there is a low need for moisture absorber for pressureless vulcanization. The product offers higher tensile strength, higher tensile modulus and lower compression set and higher loading of filler/plasticizer. With Aktifit a lower concentration of peroxide is possible.
- low to very low moisture content
- enables high loading of filler and plasticizer
- excellent extrusion properties
- high surface quality
- high tensile modulus
- low compression set
| Product characteristics | Unit | Testing method | AKTIFIT VM |
|---|---|---|---|
| Functionalization | vinyl | ||
|
Color values L*
Color values a*
Color values b*
|
acc. to CIELAB |
96.2
- 0.1
1.0
|
|
|
Particle size D50
Particle size D97
|
µm | acc. to ISO 13320-1 |
2.3
11.0
|
|
Residue > 40 µm
|
mg/kg | acc. to DIN EN ISO 787 part 18 |
10
|
| Volatile matter at 105 °C | % | acc. to DIN EN ISO 787 part 2 | 0.1 |
|
Density
Bulk density
Tamped density
|
g/cm³ |
acc. to DIN EN ISO 787 part 10
acc. to DIN ISO 903-1976
acc. to DIN EN ISO 787 part 11
|
2.6
0.37
0.70
|
|
Spec. Surface area (BET)
Oil absorption
|
m²/g
g/100 g
|
acc. to DIN ISO 9277
acc. to DIN EN ISO 787 part 5
|
10
65
|
|
Hardness silica/kaolinite
|
mg |
acc. to Mohs
|
7/4.5
|
| Refractive index n | sin α / sin β | 1.55 | |
|
Water solubility
Acid solubility
|
% |
acc. to DIN EN ISO 787 part 3
acc. to DIN 53770 (0,1 N HCL)
|
not applicable
not applicable
|
|
Chemical Analysis:
SiO2
Al2O3
Fe2O3
|
% | acc. to DIN 51001 (RFA) |
86
13
< 1
|
|
Mineralogical Composition:
Neuburg silica
Calcined kaolinite
|
% | Based on X-ray diffraction pattern analysis combined with Rietveld |
60
40
|
|
Equilibrium moisture content at 25°C
and 50% relative humidity
and 80% relative humidity
and 90% relative humidity
|
% | acc. to DIN 66138 |
0.05
0.07
0.08
|
| Water absorption | ml/g | acc. to Baumann | ≤ 0.1 |
| hydrophobic | X | ||
| reactive | X |
Solid / Light-colored
- Building profile, white (similar to RAL 9002), start formulation RAL GZ 716/1 B/II and DIN 7863, very good extrudability, excellent compression set; 65 Shore A; EPDM; peroxide cure (M 612.10/9) (M 612.10/7) (M 612.10/4) (M 612.10/2)
In order to make available to you the most important information about our products at all times, you will find here the Material Specification.
The aspects to observe when working with our products are detailed in our Material Safety Data Sheet, which also can be downloaded.
All information about material characteristics, application fields and benefits can be found in this Technical Data Sheet and is also for download available here.