DOPO (9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide)
Featured inFlame Retardants
DOPO is a reactive organophosphorus flame retardant widely used as a building block for halogen-free fire-retardant polymers and epoxy systems. Its P–H active group allows covalent bonding into epoxy resins, polyesters, and polyurethanes, providing durable flame retardancy without migration or leaching. DOPO-based systems meet stringent UL 94 V-0 ratings in printed circuit boards and electronic encapsulants.
Teknik Özellikler
| appearance | White crystalline powder |
| purity (%) | ≥99 |
| melting point (°C) | 115–118 |
| acid value (mgKOH/g) | ≤1 |
| phosphorus content (%) | 14.3 |
Uygulama Alanları
- Halogen-free flame retardant epoxy resins for PCB laminates
- Reactive flame retardant additive for polyurethane foams and elastomers
- Phosphorus-containing polyester and nylon engineering plastics
- Encapsulants and potting compounds for electronic components
- Synthesis intermediate for DOPO-HQ and other advanced FR derivatives
Ürün Özellikleri
- Reactive P–H group enables covalent integration into polymer backbones for non-migratory flame retardancy
- Halogen-free phosphorus-based mechanism reduces toxic gas emission during combustion
- High thermal stability up to 260°C suitable for high-performance electronics processing
- Versatile building block compatible with epoxy, polyester, polyurethane, and nylon systems
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