In global polymer compounding, vinyl processing, and elastomer engineering, achieving the ideal balance between structural integrity and tactile flexibility is a foundational manufacturing goal. Dioctyl Phthalate (universally known in commercial chemical distribution as DOP or DEHP) stands as the ultimate benchmark plasticizer. Chemically defined as Bis(2-ethylhexyl) phthalate (CAS No. 117-81-7), DOP is a high-purity, low-volatility, and odorless transparent oily liquid. By embedding itself between polymer chains, it significantly lowers the glass transition temperature (Tg) of PVC and synthetic rubbers, enhancing elongation at break, low-temperature fracture resistance, and compound melt flow characteristics during processing.
Technical Product Specifications
| Property / Parameter | Standard Specification (Premium Grade) |
|---|---|
| Chemical Name | Bis(2-ethylhexyl) phthalate (Dioctyl Phthalate / DOP) |
| CAS Number | 117-81-7 |
| Molecular Formula | C24H38O4 |
| Purity / Active Ester Content (%) | ≤ 99.5% |
| Color (APHA / Pt-Co) | ≤ 30 max |
| Density (g/cm³ at 20°C) | 0.982 – 0.988 g/cm³ |
| Acidity (as Phthalic Acid, %) | ≤ 0.01% |
| Flash Point (°C, Open Cup) | ≥ 196 °C |
Why Choose Our DOP Plasticizer?
- ✓ High Plasticizing Efficiency: Exhibits profound solvating power with vinyl resins and nitrile rubbers, lowering melt viscosity and optimizing processing energy metrics during calendering and extrusion.
- ✓ Superb Low-Temperature Flexibility: Imparts stable elastic memory and fatigue endurance to rubber compounds, ensuring products remain resistant to low-temperature brittle cracking.
- ✓ Excellent Dielectric and Insulation Capacity: Possesses low electrical conductivity and minimal heating loss, making it highly reliable as an insulating plasticizing baseline for heavy cable lines.
Primary Applications
Plasticizer DOP is broadly integrated across polyvinyl chloride (PVC) sheets, Nitrile Rubber (NBR), Chloroprene Rubber (CR), and specialty resin compounds:
Flexible Vinyl & PVC Leather
An industry standard for manufacturing flexible PVC films, artificial leather cloth, soft flooring tiles, flexible hoses, and molded footwear elements.
Nitrile (NBR) & CR Rubber Modification
Extensively selected to improve soft milling performance, lower Mooney viscosity boundaries, and maximize elongation traits in industrial rubber seals and oil hoses.
Wire & Cable Insulation sheathing
Formulated directly into electrical sheathing wrappers, telecommunication wire jackets, and heavy high-voltage industrial insulation profiles.
⚠ Storage & Handling Guidelines
Maintaining proper warehouse environment control parameters is vital to safeguard the premium color index and active chemical purity of Dioctyl Phthalate (DOP). Although it possesses a high flash point and strong chemical stability, prolonged exposure to open air or moisture infiltration can induce moisture pickup and impact electrical insulation performance.
- • Warehouse Climate Control: Store the chemical drums, IBCs, or bulk storage tanks within a thoroughly dry, cool, and well-ventilated dedicated warehouse. Ensure all storage setups stay completely isolated from direct sunlight, open flames, steam pipes, or heating grids.
- • Airtight Sealing Management: Keep all drum bungs and valves tightly sealed until immediate compounding processes occur. Prevent contact with strong oxidizing agents and active acids to avoid hydrolytic reactions over long storage periods.
- • Shelf Life & Rotation Strategy: Under clean, temperature-controlled, and sealed environments, our premium DOP plasticizer carries a certified shelf life of 24 months from the date of manufacture. Adhering to a strict First-In, First-Out (FIFO) material rotation system is recommended.
Frequently Asked Questions
What are the key benefits of formulating DOP inside Nitrile Rubber (NBR) compounds? +
How does DOP perform under high-temperature rubber vulcanization states? +
What environmental alternatives exist for phthalate-free B2B target contracts? +
Partner with a Reliable Chemical Supplier
We provide premium-grade Dioctyl Phthalate (DOP) plasticizer carefully processed to meet international technical benchmarks. Available in high-purity liquid drums, IBC totes, and bulk ISO tanks to ensure absolute processing precision inside your polymer mixing environment.
