is a natural fiber pulp based on hemp which was originally designed to serve as a process and reinforcement fibre in friction linings, repalcing asbestos, aramid, and other fibrous materials. Setralit® NfU/31-2 can also be used as a reinforcing element in composite materials such as cement (concrete) or poymers (fiber reinforced plastics).
|
Mean Value |
Range |
Density (g/cm³) |
1,35 |
1,25-1,45 |
Average fibre length (mm) |
0,85 |
0,70-1,00 |
Canadian Standard Freeness (ml) |
630 |
580-680 |
Specific surface BET (m²/g)* |
7,0 |
6,6-7,4 |
Bulk volume (ml/100g) |
3.250 |
2.500-4.000 |
Stamping volume (ml/100g) |
1.200 |
800-1.600 |
Moisture content (%) |
4,0 |
2,8-5,8 |
Ash content (%)** |
1,3 |
0,8-1,8 |
Amount of fibrils (%)*** |
25 |
10-50 |
* Neuberechnung durch Messungen der Gasdurchlässigkeit (Blaine-Methode)
** Bestimmt durch thermische, gravimetrische Analysen (Luft, 700 °C, 20 °C pro Minute)
*** „Fibrillen“ sind Faser-Strukturen mit einem Durchmesser von weniger als 1/3 der Ausgangsfaser