CARBON BLACK N550
Other Name: Fast Extrusion Furnace Black; FEF
Physical & Chemical Properties: Its iodine adsorption value is 43 g/kg, and DBP adsorption is 121cm3/100g. Carbon black N550 has smooth particle surface and high structure, resulting in best reinforcement properties among soft carbon blacks.
Application: Carbon black N550 is used in fabric cord, tire side compound, extrusion and rolling compounds. It is suitable for natural rubber and synthetic rubbers.
Performance Features
• High modulus
• High hardness
• Low die swell
Typical Applications
• Carcass
• Inner tube
• Tire sidewall
• Conveyor belt covers
• Hose
• Rubber footwea
• Cable
• Rubber products
| Test Items | Unit | Index |
| Iodine Adsorption Number | g/kg | 43±4 |
| Oil absorption Number(OAN) | 10-5m3/kg | 121±5 |
| Crushed OAN (COAN) | 10-5m3/kg | 80-90 |
| CTAB absorption surface Area-N2 | 103m2/kg | 37-47 |
| STSA | 103m2/kg | 39±5 |
| N2SA | 103m2/kg | 36-44 |
| Tint Test, Reflectance From ITRB | % | ------ |
| Moisture, Bulk& Bag (as shipped) | % | ≦1.5 |
| Ash content | % | ≦0.5 |
| 45μm Sieve residue | % | ≦0.05 |
| Impurity | / | None |
| Fines/Attrition | % | ≦8 |
| (Note l)(25g,No.120 US Std Sieve) | ||
| Pour density | kg/m3 | 360±40 |
| 300% stretching stress (SRB7#) | Mpa | -0.6±1.0 |
