Peroxide
Calcined product, vinyl functionalized.
Aktifit VM offers higher tensile strength, higher tensile modulus, lower compression set, better abrasion resistance and improved chemical resistance. Aktifit VM offers very low dielectric loss, also after immersion in water, also without additional silane in the compound. It is the best product for medium- and high-voltage insulation.
- very good extrusion properties
- medium to high tensile strength
- good compressive properties at high temperature
- good hot set properties
- high electrical resistivity, also after immersion in water
- avoidance of deposits on dies caused by filler
- good resistance against oil, water, acid
- very low dielectric loss, also aferter immersion in water, even without additional silane in the compound
| 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 |
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.