Matrinox - DB 90
(2,4 DICHLORO BENZOYL PEROXIDE)
Inroduction:
It is a white homogeneous paste of 2,4 DICHLORO BENZOYL PEROXIDE in 50% Polydimethyl siloxane. This is mainly used for low temperature crosslinking of silicone rubbers. The compounds can be cured without external pressure (hot air/or IR crosslinking).
CAS Number: 133-14-2
Molecular weight: 380.01 g/mol
Physical Properties & Chemical Properties:
| Appearance | : | Paste |
| Colour | : | White |
| Assay | : | 49.00 - 52.00%. |
| Cl | : | <_ 0.50 |
| Particle Size | : | <_ 20 |
| White index | : | _>60 |
| 2,4 dichlorobenzoic acid | : | <_ 1.00 |
| Fe | : | <_ 0.0003 |
| Relative density | : | 1.25 @ 25 C |
| Solubility in water | : | Insoluble(<0.1 mg/l) @ 20 C |
| Melting Point | : | 55 C |
Dosage: 1-2 phr of product.
Applications:
| 1 | Used as a catalyst for cross-linking a variety of synthetic rubbers. |
| 2 | It is used in combination with other peroxides. |
Advantages:
| 1 | Not oxygen inhibited. |
| 2 | Can be used in hot air cures at atmospheric pressures at temperatures from 150-250 C. |
| 3 | Decomposition products have a very low vapor pressure so porosity does not normally occur. |
| 4 | It has the lowest activation temperature and the highest rate of cure of any of the common peroxides used in cross-linking. |
| 5 | It is ideally suited for fast curing of thin cross-sections in continuous cures. |
Packing:
Available packaging: 20kg HDPE
Special packaging is available on request.
Handling & Safety:
| Wear suitable protective Clothing. |
| Do not dispose of waste in to sewer. |
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