DCP Peroxide Crosslinker (Dicumyl Peroxide)
Dicumyl Peroxide (DCP) is the most widely used organic peroxide for crosslinking EPDM, silicone rubber, and polyethylene. It generates carbon radicals upon thermal decomposition that abstract hydrogen from the polymer backbone, forming carbon-carbon crosslinks that offer superior heat resistance, compression set, and low extractables compared to sulfur-cured counterparts. DCP is available as a pure form and on inert carriers (40–50% active) for safer handling and accurate dosing.
Технические характеристики
| ash (%) | ≤0.10 |
| assay (%) | ≥99.0 (pure form) |
| appearance | White to off-white powder or granules |
| moisture (%) | ≤0.30 |
| melting point (°C) | 39–41 |
| active oxygen content (%) | 5.8–6.0 (pure); 2.4–2.8 (40% on inert) |
Области применения
- EPDM automotive seals and roofing membrane crosslinking
- Silicone rubber vulcanization (HTV/LSR)
- Polyethylene (XLPE) cable insulation crosslinking
- Rubber-plastic blend crosslinking
- Heat-resistant rubber goods not suitable for sulfur cure
Особенности продукта
- Forms carbon-carbon crosslinks for superior heat and compression resistance
- No sulfur contamination — clean for electrical and food-contact rubber
- Available in carrier form for safe and accurate dosing
- Industry-standard peroxide for EPDM and silicone crosslinking
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