N-8 TDS (Technical Data Sheet)
Product Information
N-8 Borracha em fardo NBR / NBR Rubber bale
Quality Control Manual
Date: 08/11/20
Revision: 20
Specification Limits
| Property |
Specification |
Method |
Reference |
| Appearance |
Yellow to medium brown |
B-029 |
- |
| Mooney Viscosity (MML1+4 @ 100°C) |
72 – 86 |
B-002 |
ASTM D-1646 |
| Volatile Matter (%) |
0.0 – 0.7 |
B-003 |
ASTM D-5668 |
| Ash Content (%) |
0.0 – 1.0 |
B-007 |
ASTM D-5667 |
| Bound Acrylonitrile (%) |
28.0 – 32.0 |
B-016 / B-028 / B-065 |
- |
| Shrinkage (%) |
30 – 40 |
B-006 |
ASTM D-1917 |
Rheometric Properties (MDR, 160°C, arc 0.5°, 1.7 Hz, 30 min, range 100)
| Property |
Specification |
Method |
Reference |
| ML (lbf.in) |
5.1 – 6.5 |
B-015 |
ASTM D-5289 |
| MH (lbf.in) |
18.0 – 21.0 |
B-015 |
ASTM D-5289 |
| ts1 (min) |
0.3 – 1.7 |
B-015 |
ASTM D-5289 |
| t’90 (min) |
6.9 – 13.3 |
B-015 |
ASTM D-5289 |
| Cure rate |
7.7 – 19.2 |
B-015 |
ASTM D-5289 |
Formulation
Compound:
- N-8: 100.0 PHR
- Carbon Black HAF N-330: 40.0 PHR
- Zinc Oxide: 3.00 PHR
- Stearic Acid: 1.00 PHR
- Sulfur: 1.50 PHR
- TBBS: 0.70 PHR
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