Zinc Diethylphosphinate (ZnDEP)
Zinc diethylphosphinate (ZnDEP) is a halogen-free organophosphorus flame retardant synergist used in combination with aluminum diethylphosphinate (AlDEP) or melamine polyphosphate (MPP) to enhance flame retardant performance in polyamide and polyester systems. The zinc cation acts as a Lewis acid catalyst that promotes char formation and viscosity increase in the condensed phase, preventing dripping and improving LOI. ZnDEP is also used as a sole FR agent in specific polyester and PP applications requiring moderate flame retardancy.
المواصفات الفنية
| appearance | White powder |
| moisture (%) | <0.3 |
| zinc content (%) | 19–20 |
| phosphorus content (%) | 22–23 |
| particle size D50 (µm) | 10–25 |
| decomposition temperature (°C) | >280 |
مجالات التطبيق
- Synergist with AlDEP in glass-filled PA6/PA66 for enhanced anti-drip and char formation
- PBT and PET thermoplastic polyester flame retardant compounds
- Polypropylene compounds requiring moderate halogen-free flame retardancy
- Synergist blend with MPP in unreinforced polyamide systems
- Thermoplastic elastomer (TPE) cable compounds with halogen-free FR requirements
مميزات المنتج
- Zinc Lewis acid catalysis enhances char formation and melt viscosity to suppress dripping in PA/PBT
- Synergistic with AlDEP enabling lower total FR loading for equivalent UL94 V-0 performance
- Good thermal stability (>280 °C) for polyester and polyamide compounding conditions
- Halogen-free and low toxicity profile suitable for E&E components under RoHS and REACH
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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
Antimony Trioxide (Sb2O3) Flame Retardant Synergist