Accelerator DCBS (N,N-Dicyclohexyl-2-Benzothiazolesulfenamide)
CAS Number: 4979-32-2
N,N-Dicyclohexyl-2-benzothiazolesulfenamide (DCBS) is a delayed-action sulfenamide accelerator offering the longest scorch time among commercial benzothiazole sulfenamides. It is the preferred accelerator for thick-section tire components and belt compounds containing insoluble sulfur, where extended processing safety is critical. DCBS delivers a high crosslink density and excellent reversion resistance upon vulcanization.
Technical Specifications
| ash (%) | ≤0.30 |
| appearance | White to off-white powder |
| purity (%) | ≥97.0 |
| moisture (%) | ≤0.30 |
| melting point (°C) | 97–101 |
Applications
- Thick-section tire belt and bead compounds
- Steel-cord adhesion compounds with insoluble sulfur
- NR-based tire carcass and sidewall compounds
- Industrial rubber goods with long vulcanization cycles
- High-performance conveyor belt compounds
Key Features
- Longest scorch time among sulfenamide accelerators
- Ideal for thick-section tire components requiring processing safety
- High crosslink density and superior reversion resistance
- Compatible with insoluble sulfur IS-HS for belt compounds
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CAS Number
4979-32-2
Category
Rubber / Tire ChemicalsAvailability
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