| Model | Content | Suitable Process and Crosslinking Temperature | Usage (%) | Properties |
|---|---|---|---|---|
| Perkadox PD-50S | 50% | Extrusion, hot-air vulcanization at 90°C | 0.8–1.4 | Good resistance to yellowing, high transparency of the finished product, low dosage: minimal bloom, low odor, suitable for producing highly transparent extruded products. |
| Perkadox OPC-50S | 50% | Extrusion, hot-air vulcanization at 90°C | 0.8–1.4 | Good resistance to yellowing, high transparency of the finished product, and low required dosage: minimal blooming and low odor; suitable for producing highly transparent extruded products. |
| Perkadox OPC-50S-MM | 50% | Extrusion, hot-air vulcanization at 90°C | 1.0–1.8 | Mid-range product, suitable for producing extruded products with slightly higher transparency requirements. |
| Perkadox OPC-50S-LM | 50% | Extrusion, hot-air vulcanization at 90°C | 1.0–1.8 | Affordable and low-cost, suitable for the production of wires or extruded products with modest transparency requirements. |
Product Information:
- Product Name: Perkadox OPC-50S-PS-MM
- Chemical Composition: Di(2,4-dichlorobenzyl) peroxide, paste, 50% dissolved in silicone oil
- Molecular Weight: 380.0
- CAS Number: 133-14-2
- EINECS/ELINCS Number: 205-094-9
- Actual Active Oxygen Content: 2.06–2.15%
- Appearance: White paste
- Content: 49.0–51.0%
Application:
- Perkadox OPC-50S-PS-MM is primarily used for the cross-linking of silicone rubber.
Applications:
- Perkadox OPC-50S-PS-MM is primarily used for the cross-linking of silicone rubber.
- Silicone rubber containing Perkadox OPC-50S-PS-MM can be cross-linked without external pressure (e.g., hot air and/or infrared curing).
- Perkadox OPC-50S-PS-MM can be easily blended with silicone rubber using a twin-roll mixer.
- The recommended safe processing temperature (rheometer s2 > 20 minutes) is 65°C, and the typical crosslinking temperature (rheometer t90 approximately 12 minutes) is 90°C.
- To achieve the ideal degree of crosslinking, the recommended addition level of Perkadox OPC-50S-PS-MM is 1.1–2.3% of the silicone rubber.
Moisture:
- Moisture: 1.5% max.
Density:
- Density at 20°C: 1.18 g/cm³
Thermal Stability:
- Perkadox OPC-50S-PS-MM is an organic peroxide and is thermally unstable; it undergoes self-accelerating decomposition.
- The self-accelerating decomposition temperature (SADT) is 60°C.
Major decomposition products:
- Major decomposition products include carbon dioxide, 1,3-dichlorobenzene, and trace amounts of 2,2',4,4'-tetrachlorobiphenyl.
Packaging and Shipping:
- In North America, Perkadox OPC-50S-PS-MM is shipped in non-recyclable cardboard boxes, with each bag containing 1 pound of product (net weight).
- In other regions, it is shipped in 20-kilogram drums of paste-form peroxide.
- Perkadox OPC-50S-PS-MM is classified as an organic peroxide, Class D: Solid, Division 52: UN3106.
Safety and Handling:
- Keep containers tightly closed.
- Store and handle Perkadox OPC-50S-PS-MM in a dry, well-ventilated area, away from heat or ignition sources, and avoid direct sunlight.
- Do not weigh or repackage the product in the storage room.
- Avoid contact with reducing agents (e.g., amines), acids, bases, and heavy metal compounds (e.g., accelerators, driers, and metal soaps).