- Product Name: DTBP S-500
- Chemical Composition: Di-tert-butyl peroxide
- CAS Number: 110-05-4
- Physical State: Liquid, technical grade
- Appearance: Colorless liquid
- Molecular Weight: 146.2 g/mol
- Structural formula: [CH3C(CH3)OC(CH3)2]2O
- Purity: > 99%
- Reactive oxygen content (theoretical value): > 10.8%
- Density (20°C): approx. 0.79 g/cm³
- Viscosity (20°C): approx. 0.8 mPa·s
- Refractive Index (20°C): approx. 1.389
- Vapor pressure (20/40/110°C): 25/75/1000 mbar
- Critical Temperature (SADT): Above 80°C
- Storage stability: 12 months from the date of delivery
- Polyethylene crosslinking:
- Used as a peroxide crosslinking agent for polyethylene (HDPE and LDPE); crosslinking temperature: 180°C or higher.
- Usage Level: 0.5–2% (by mass of the supplied material).
- Characteristics: Highly efficient, with virtually no premature crosslinking (scorching).
- Due to the product’s high volatility, it is recommended to use a closed system during mixing and dispersion with polyethylene powder.
- Polypropylene Rheology Control:
- Used as a rheology modifier for polypropylene; applicable temperature range: 200°C–220°C.
- Usage level: 0.01%–0.1% (by mass of the polymer).
- This degradation (e.g., in an extruder) reduces the molecular weight of the polypropylene, making it easier to (re)process.
- Electrical Properties:
- The new version of DTBP S-500 is conductive, significantly reducing the risk of electrostatic discharge.
- Standard packaging: 20 kg (44.1 lb) polyethylene drums
- The information and technical recommendations provided are based on internal testing of local raw materials and are intended to introduce the product and its applications.
- This information should not be construed as a guarantee of any specific properties of the described product or its suitability for a particular application.
- The information does not constitute a warranty regarding the nature of the product or its shelf life, nor does it imply any legal liability.
- It is the user’s responsibility to conduct a thorough inspection and testing of the received goods to verify their suitability for the intended application.