DOPO-ITA – A Green Flame Retardant Pioneer: High Efficiency, Safety, and Sustainability for Tomorrow
As fire safety regulations and environmental standards become increasingly stringent worldwide, traditional halogenated flame retardants are being phased out due to toxic smoke emission and persistence in the environment. DOPO-ITA (DOPO-DDP) – a novel phosphaphenanthrene-based heterocyclic flame retardant – offers a green, high-performance alternative for polyester fibers, polyurethane foams, thermosetting resins, and adhesives, combining exceptional thermal stability, outstanding hydrolysis resistance, and low toxicity.
## Product Specifications at a Glance
| Parameter | Specification |
|-----------|---------------|
| Appearance | White powder |
| Purity (HPLC) | ≥99.0% |
| Phosphorus content | ≥8.92% |
| Chloride (Cl) | ≤50 ppm |
| Iron (Fe) | ≤20 ppm |
| Solubility | Insoluble in water; Soluble in ethanol, THF, isopropanol, DMF, acetone, methanol, MEK |
## Key Performance Advantages
### Superior Flame Retardancy – Outperforming Conventional Phosphates
Thanks to its unique **phosphorus–carbon covalent bonds**, DOPO-ITA exhibits significantly higher thermal stability and oxidation resistance than ordinary phosphate esters. It can be used as either a **reactive or additive** flame retardant, forming chemical linkages with polymer matrices to prevent migration and ensure long-lasting fire protection.
### Tailored for PET Polyester Fibers
Polyethylene terephthalate (PET) is widely used in synthetic fibers and engineering plastics, yet its inherent flammability restricts many applications. When incorporated as a **copolymerization monomer**, DOPO-ITA:
- Enhances hydrolysis resistance of the modified polyester;
- Promotes accelerated melt-dripping during combustion, effectively removing heat and enabling self-extinguishment;
- Achieves a **Limiting Oxygen Index (LOI) of 30–32%**, meeting stringent flame-retardant standards;
- Exhibits **low dermal irritation and low toxicity**, making it ideal for automotive interiors, marine bulkheads, and premium decorative materials where both safety and environmental performance are paramount.
### Formulated for Flame-Retardant Adhesives
By integrating DOPO-ITA into polyester-based adhesives, manufacturers can produce flame-retardant bonding systems with:
- Excellent thermal stability and fire resistance;
- Consistent adhesive strength, even in solvent-borne formulations;
- Reliable processability for applications in electronic encapsulation and composite bonding for transportation.
## Safety and Environmental Compliance
- **Halogen-free** – minimizes smoke density and eliminates corrosive acid gas emissions during combustion;
- **Ultra-low chloride and iron content** – meets the stringent ionic impurity requirements of high-end electrical and electronic applications;
- Fully aligned with **RoHS, REACH, and other global environmental directives**, supporting your journey toward sustainable manufacturing.
## Conclusion
DOPO-ITA is more than just a high-performance flame retardant – it is a strategic enabler for industries transitioning toward **safer, cleaner, and more sustainable** production. Whether you are developing next-generation flame-retardant polyester fibers or upgrading the fire safety of adhesive systems, DOPO-ITA delivers reliable, efficient, and eco-friendly performance.
**Choose DOPO-ITA – Smarter Flame Retardancy, Greener Protection.**