Product Information:
- Product Name: DYBP-85-WO
- Chemical name: 2,5-Dimethyl-2,5-di-tert-butylperoxyalkyn-3
- CAS No. 1068-27-5
- Appearance: light yellow liquid
- Contains approximately 851 TP3T of technically pure 2,5-Dimethyl-2,5-di(tert-butylperoxy) hexyne-3 with 151 TP3T white oil added to minimize sensibility.
- This bifunctional dialkyl peroxide is used as a free radical initiator in the crosslinking of polyethylene above 180 °C.
Technical data:
- Appearance: light yellow liquid
- Desensitizer: White oil
- Content: Approx. 85% weight/weight
- Density (20°C): approx. 0.88 g/cm³
- Viscosity (20°C): approx. 11 mPa-s
- Refractive index (20°C): approx. 1.436
- Flash point: approx. 69°C
- SADT: approx. 90°C
- Refrigeration stability: freezing point below 0°C
- Recommended storage temperature: not exceeding 40°C
- Storage stability from date of delivery: 12 months
Applications:
- Crosslinking agent for polyethylene (HDPE, LLDPE and LDPE with carbon black).
- Crosslinking temperature: above 180°C, avoid premature crosslinking (sintering) below 150°C.
- Dosage: 0.2 - 2% (w/w) of supplied product.
Decomposition products:
- Decomposition products that may be detected: tert-butanol, acetone, methane, 3-hexyne-2,5-dione.
Storage:
- Avoid heat, light, humidity and protect the product from impurities. Keep within safe temperature range.
Typical Packaging:
- 15 kg (33.1 lbs) / 20 kg (44.1 lbs) HDPE tank.
Performance in use:
- Levels of peroxides that affect the degree of cross-linking.