Antimony Trioxide (Sb2O3) Flame Retardant Synergist
Featured inFlame Retardants
Antimony trioxide (Sb2O3) is the dominant inorganic synergist used in combination with halogenated flame retardants to dramatically enhance their effectiveness. In the gas phase, it reacts with HBr/HCl from decomposing halogen FRs to form antimony halides and oxyhalides that are highly effective radical chain scavengers. A typical 3:1 (halogen FR : Sb2O3) loading synergistically achieves UL94 V-0 ratings that neither component could reach alone. Sb2O3 is essential in PVC, HIPS, ABS, polyester, and rubber compounds using brominated or chlorinated FRs.
المواصفات الفنية
| appearance | White fine powder |
| moisture (%) | <0.2 |
| Sb2O3 content (%) | ≥99.5 |
| heavy metals (ppm) | <50 |
| oil absorption (g/100g) | 10–25 |
| particle size D50 (µm) | 0.3–1.5 (multiple grades) |
مجالات التطبيق
- Synergist with brominated FRs (TBBPA, deca-BDE, BER) in HIPS, ABS, and nylon compounds
- PVC cable and wire insulation with chlorinated FR synergism
- Polyester, PBT, and PET compounds using EBTBPI or brominated FR
- Rubber and elastomer compounds using halogenated flame retardants
- Textile back-coating systems with halogenated FR for furniture and drapery
مميزات المنتج
- Multiplies effectiveness of halogen FRs: 3:1 (halogen:Sb2O3) synergism reduces total FR loading significantly
- Available in ultra-fine grades (D50 < 0.5 µm) for minimal impact on surface gloss and optical properties
- Surface-treated grades with stearic acid or silane available for improved dispersion in polymers
- Widely approved in global FR standards and UL certifications for use with brominated and chlorinated systems
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المزيد من المنتجات في فئة مثبطات اللهب
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
Bis(2-ethylhexyl) Tetrabromophthalate (BEH-TEBP)