DOP
Dioctyl Phthalate(DOP) is a classic aromatic ester plasticizer with CAS number 117-81-7, chemical formula C₂₄H₃₈O₄, and molecular weight 390.56.
It is a colorless, transparent oily liquid with slight odor, and has long been one of the most widely used plasticizers in the polymer industry due to its excellent comprehensive performance and cost-effectiveness.
产品详情
Key Properties
| Property | Value | Significance |
|---|---|---|
| Appearance | Colorless transparent oily liquid | No impact on the color of polymer products |
| Boiling Point | 386°C (0.101 MPa) | Good high-temperature stability during processing |
| Flash Point | 216°C (open cup) | Low flammability risk in production |
| Freezing Point | -55°C | Excellent low-temperature flexibility for end products |
| Compatibility | High compatibility with PVC, vinyl resins | Can be added in large proportions without blooming |
| Volatility | Low (lower than DBP, higher than ATBC) | Moderate migration, suitable for general-purpose products |
| Solubility | Soluble in organic solvents; insoluble in water | Easy to blend with polymers in production |
Applications
- PVC Processing: The most dominant application field, used in soft PVC products such as wires and cables, artificial leather, flooring, films, and hoses. It can significantly improve the flexibility, processability and durability of PVC.
- Other Polymers: Compatible with synthetic rubber, cellulose resins, etc., used as plasticizer or softener in rubber products and coatings.
- Industrial Auxiliaries: Applied in lubricants, adhesives, and printing inks to adjust viscosity and improve performance.
