Ammonium Polyphosphate (APP) Phase I
Featured inFlame Retardants
Ammonium polyphosphate Phase I (APP I) is a lower-polymerization-degree, water-soluble intumescent flame retardant suited for textile backcoating, paper treatment, and aqueous formulations. With a polymerization degree of approximately 10–100, it dissolves readily in water, enabling straightforward incorporation into waterborne systems. APP I releases phosphoric acid and ammonia upon heating, creating an efficient char-forming mechanism for cellulosic substrates.
Teknik Özellikler
| appearance | White crystalline powder |
| pH (10% solution) | 5.5–7.0 |
| nitrogen content (%) | 13–15 |
| phosphorus content (%) | 30–31 |
| degree of polymerization | 10–100 |
| water solubility (25°C, g/100mL) | 5–10 |
Uygulama Alanları
- Waterborne flame-retardant textile backcoatings and finishes
- Fire-retardant paper and cardboard impregnation
- Aqueous intumescent coatings for wood and cellulosic substrates
- Agricultural fertilizer–flame retardant dual-function formulations
- Flame-retardant adhesives and binders in construction materials
Ürün Özellikleri
- Water-soluble grade enables seamless integration into aqueous and waterborne formulations
- Effective acid source and foaming agent in cellulosic and textile FR systems
- Good compatibility with urea, dicyandiamide, and other nitrogen co-synergists
- Cost-effective flame retardancy for non-durable or semi-durable textile applications
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Ammonium Polyphosphate (APP) Phase II
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