- DHBP-7.5-IC5 is a white, pearlescent substance containing approximately 7.5% 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, which acts as an inhibitor for polypropylene.
- This bifunctional dialkyl peroxide is primarily used as an initiator (radical source) to control the rheology of polypropylene at temperatures above 200°C.
- Appearance: White to slightly yellowish beads
- Peroxide content: approx. 7.5% w/w
- Active oxygen content (calculated): approx. 0.83% w/w
- Inhibitor: Polypropylene
- Bulk Density: Approximately 0.38 kg/L
- Critical temperature (SADT): Approximately 90°C
- Recommended storage temperature: below 40°C
- Storage stability from date of delivery: 6 months
- Compliant with ElektroG (EU Directives: RoHS 2002/95/EG, WEEE 2002/96/EG)
- Half-life: 10 hours/1 hour/1 minute (0.1 m/benzene): 120/142/190°C
- DHBP-7.5-IC5 is used as a free-radical source to control the rheology of polypropylene in the temperature range of 200–220°C.
- The recommended usage level is 0.1–1.0% w/w based on the polymer feedstock.
- It is highly compatible with PP pellets and other PP grades, facilitating uniform mixing of the initiator and the polymer.
- This peroxide has a rheological degradation effect, significantly reducing molecular weight and markedly narrowing the statistical distribution, thereby increasing the melt flow index (MFI).
- This document includes a table showing the effect of different usage levels of DHBP-7.5-IC5 and other similar materials on the melt flow index (MFI) of commercial, unstabilized polypropylene.
- DHBP-7.5-IC5 is packaged in 20-kilogram cardboard boxes.
- This document includes a disclaimer stating that the information and technical recommendations are based on the company’s current knowledge and experience derived from internal testing of local raw materials. It emphasizes that the information should not be construed as a guarantee of specific product properties or its suitability for specific applications.