DOPO (9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide)
DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) is the key reactive phosphorus intermediate used to synthesize a broad family of halogen-free flame retardants for epoxy resins, polyesters, and vinyl ester resins. Its reactive P–H bond allows covalent incorporation into epoxy hardeners, novolacs, and vinyl ester backbones, providing permanent non-leachable flame retardancy. DOPO-based FR systems are the dominant approach in halogen-free printed circuit board (PCB) and copper clad laminate (CCL) manufacturing.
مشخصات فنی
| appearance | White crystalline solid |
| moisture (%) | <0.2 |
| purity (GC, %) | ≥99 |
| melting point (°C) | 117–120 |
| acid value (mgKOH/g) | <0.5 |
| phosphorus content (%) | 14.3–14.7 |
حوزههای کاربرد
- Reactive halogen-free FR intermediate for PCB and copper clad laminate (CCL) epoxy systems
- Synthesis of DOPO-based epoxy hardeners and curing agents for electronics
- Flame-retardant vinyl ester resin formulations for FRP composite panels
- Reactive FR additive for polyester and PBT fiber and film applications
- Building block for DOPO-HQ, DOPO-BQ, and other advanced reactive FR derivatives
ویژگیهای محصول
- Reactive P–H functionality allows covalent incorporation into thermoset resins for permanent FR without leaching
- Compact bicyclic phosphine oxide structure delivers high phosphorus efficiency in aromatic polymer systems
- Foundation molecule for the entire DOPO-derivative halogen-free FR family used in PCB manufacturing
- High purity (>99%) ensures reproducible reactivity in epoxy laminate and prepreg production
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محصولات بیشتر در دسته بازدارندههای شعله
Aluminum Diethylphosphinate (AlDEP / DEPAL)
Aluminum Hydroxide (ATH) Flame Retardant
Aluminum Phosphate (AlPO4) Ceramic Flame Retardant
Ammonium Phosphate Monobasic (Flame Retardant Grade)
Ammonium Polyphosphate (APP) Phase I
Ammonium Polyphosphate (APP) Phase II
Antimony Pentoxide (ATO) Nanoparticle Synergist
Antimony Trioxide (Sb2O3) Flame Retardant Synergist