Hexaphenoxycyclotriphosphazene (SPB-100)
Hexaphenoxycyclotriphosphazene (commonly known as SPB-100) is a halogen-free, thermally stable cyclic phosphazene flame retardant featuring an inorganic P–N backbone that provides exceptional thermal stability up to 270 °C. It is particularly suited for high-performance engineering plastics including polycarbonate, polyphenylene oxide (PPO), and polyamide, where processing temperatures and end-use thermal demands are stringent. The compound acts through both gas-phase inhibition and condensed-phase char promotion, delivering outstanding flame retardancy with minimal impact on transparency and mechanical properties.
Teknik Özellikler
| appearance | White crystalline powder |
| moisture (%) | <0.2 |
| melting point (°C) | 110–115 |
| nitrogen content (%) | 7.8–8.2 |
| phosphorus content (%) | 13.4–13.8 |
| decomposition temperature (°C) | >270 |
Uygulama Alanları
- Polycarbonate (PC) and PC/ABS blends requiring UL94 V-0 with high transparency retention
- Polyphenylene oxide (PPO/HIPS) blends for electrical and electronic housings
- High-performance polyamide PA6/PA66 compounds for under-hood automotive parts
- Epoxy resin and printed circuit board laminates requiring high-Tg halogen-free FR
- Thermoplastic polyurethane (TPU) and PBT compounds for wire and cable applications
Ürün Özellikleri
- Inorganic P–N ring backbone provides exceptional thermal stability (>270 °C) for demanding engineering plastic processing
- Minimal impact on optical clarity in transparent PC applications unlike opaque mineral fillers
- Halogen-free and nitrogen–phosphorus synergistic, meeting EU REACH and electronics environmental standards
- Low loading (5–15%) sufficient for UL94 V-0 in PC and PPO blends preserving mechanical performance
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