Perovion DBPH P14-45 is a 2,5-dimethyl-2,5-di(tert-butylperoxy)hexyne-3 formulation supplied as a 45% active powder on an inert carrier system. Perovion DBPH P14-45 is a bifunctional organic peroxide used for the cross-linking of natural and synthetic rubbers as well as thermoplastic polyolefins (TPO), giving formulators a versatile curing agent across multiple polymer platforms. Perovion DBPH P14-45 is widely used in wire and cable insulation, foam production, and rubber compounding where a high-temperature, low-volatility peroxide is required, particularly in processes involving extended residence time at elevated temperature.
Perovion DBPH P14-45 Overview
Perovion DBPH P14-45 belongs to the dialkyl peroxide family, characterized by two tert-butylperoxy groups attached to a hexyne-3 backbone through acetylenic bonds. This bifunctional structure, combining two peroxide groups on a single acetylenic backbone, gives Perovion DBPH P14-45 a relatively high decomposition temperature compared with monofunctional peroxides, making it well suited for cross-linking reactions that must be triggered only after compounding, extrusion, or molding is complete, which helps processors avoid premature cure and reduce scrap rates on the production line. Supplying Perovion DBPH P14-45 as a 45% powder on an inert carrier also improves handling safety and dosing accuracy compared with neat liquid peroxides of similar reactivity, since the diluted powder form reduces the risk of localized overheating during mixing.
Because Perovion DBPH P14-45 decomposes cleanly into low-odor byproducts, it is frequently selected over more reactive dialkyl peroxides in applications where processors need to balance cure efficiency against workplace air quality and product odor considerations. The 45% powder-on-carrier dilution level is also chosen to match common rubber compounding dosage ranges, reducing the need for further dilution or blending on the processing line before use.
Key Features
- High decomposition temperature: Perovion DBPH P14-45 remains stable through typical compounding and extrusion temperatures, reducing the risk of premature scorch during processing, which is a common concern when working with highly reactive peroxide systems at elevated line speeds.
- Bifunctional cross-linking action: The two peroxide groups in Perovion DBPH P14-45 allow it to form multiple cross-link sites per molecule, supporting efficient network formation in rubber and polyolefin systems and helping to achieve target physical properties at practical dosage levels.
- Powder-on-carrier form: Perovion DBPH P14-45 is supplied as a free-flowing 45% powder, simplifying dosing, mixing, and handling relative to liquid peroxide concentrates.
- Low odor and low migration: The decomposition products of Perovion DBPH P14-45 are generally low in odor, which is valued in wire and cable and consumer-facing rubber applications where odor and volatile emissions are closely monitored.
- Broad compatibility: Perovion DBPH P14-45 is compatible with EPDM, EPM, silicone rubber, and a range of polyolefin resins used in TPO compounding, giving formulators the flexibility to standardize on a single cross-linking peroxide across product lines.
Formulators working with Perovion DBPH P14-45 typically qualify dosage levels against target cross-link density, mechanical properties such as tensile strength and elongation, and compression set performance at the intended service temperature. Because reaction byproducts and residual peroxide levels can influence long-term aging behavior, many processors run accelerated aging tests alongside initial cure studies when introducing Perovion DBPH P14-45 into a new formulation.
Typical Applications
Perovion DBPH P14-45 is primarily used to cross-link EPDM, EPM, and silicone rubber compounds in wire and cable insulation, where high thermal stability and long-term electrical performance are required over the service life of the cable. The bifunctional structure of Perovion DBPH P14-45 supports efficient network density at relatively low dosage levels compared with monofunctional peroxides, which can also help reduce overall formulation cost.
Beyond wire and cable, Perovion DBPH P14-45 is used in cross-linked polyolefin foam production and in general rubber compounding applications where a high-temperature curing peroxide is needed to withstand the mixing and extrusion temperatures typical of these processes. Its powder-on-carrier form also makes Perovion DBPH P14-45 convenient for use in dry-blend rubber compounding processes, where consistent particle size supports uniform dispersion throughout the compound.
Technical Specifications
- Chemical Type: 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexyne-3
- Appearance: White free-flowing powder
- Active Content: 45%
- Assay (active peroxide basis): To be confirmed based on the final specification sheet.
- Bulk Density: To be confirmed based on the final specification sheet.
- Moisture Content: To be confirmed based on the final specification sheet.
- CAS Number: 1068-27-5
Thermal Stability
- Organic peroxides are thermally unstable substances and must be handled with appropriate care at all times.
- Self-Accelerating Decomposition Temperature (SADT): To be confirmed based on the final specification sheet.
- Recommended maximum storage temperature: To be confirmed based on the final specification sheet.
Storage Recommendations
- Store Perovion DBPH P14-45 in a cool, dry, well-ventilated area away from direct sunlight and other heat sources.
- Keep containers tightly closed when not in use to prevent contamination and moisture ingress.
- Avoid contact with reducing agents, acids, alkalis, and heavy metal compounds, which can trigger premature decomposition.
- Recommended shelf life under proper storage conditions: To be confirmed based on the final specification sheet.
Packaging & Transport
- Standard Packaging: Fiber drums or multi-wall bags with inner liner; typical net weights available on request based on customer volume requirements.
- UN Number: To be confirmed based on the final specification sheet.
- Hazard Class: Organic peroxide, Class 5.2
- Exact transport documentation, packing group, and regional classification: To be confirmed based on the final specification sheet.
Perovion DBPH P14-45: Safety & Handling
Perovion DBPH P14-45 should be handled in accordance with applicable safety procedures for organic peroxides. The product is classified as an oxidizing material and requires appropriate storage and handling measures at all times, including avoidance of contact with incompatible materials and heat sources, since accidental exposure to such conditions can trigger self-accelerating decomposition. Operators should avoid generating and inhaling dust during weighing and transfer, and should ensure adequate ventilation wherever Perovion DBPH P14-45 is handled.
Users are advised to review the Safety Data Sheet for Perovion DBPH P14-45 prior to handling and to implement appropriate personal protective equipment and engineering controls as specified therein, including gloves, eye protection, and dust extraction where applicable. Safety Data Sheet and destination-compliant labeling information are available upon request. For related cross-linking and curing peroxides, see also Perovion DBPH L14-85 and Perovion BPO PA-BT.