1K PUR
Calcined product, vinyl functionalized.
Aktifit VM is applicable in 1K PUR adhesives.
The product is hydrophobic and offers very low moisture content without increase under humid climatic conditions, low rheological activity, high tensile and lap shear strength.
- excellent strength of properties, up to 2-fold or 3-fold calcium carbonate (tensile strength and lap shear strength), mostly without reducing the ultimate elongation
- good water resistance and chemical resistance
Product characteristics | Unit | Testing method | AKTIFIT VM |
---|---|---|---|
Functionalization | vinyl | ||
Color values L*
Color values a*
Color values b*
|
acc. to CIELAB |
96.3
- 0.1
1.0
|
|
Particle size D50
Particle size D97
|
µm | acc. to ISO 13320-1 |
2.0
10.0
|
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 |
Electrical conductivity | µS/cm | acc. to DIN EN ISO 787 part 14 | not applicable |
pH Value | acc. to DIN EN ISO 787 part 9 | not applicable | |
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
0.67
|
Spec. Surface area (BET)
Oil absorption
|
m²/g
g/100 g
|
acc. to DIN ISO 9277
acc. to DIN EN ISO 787 part 5
|
9
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 |