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Halgen Free Flame Retardant Ammonium Polyphosphate Phase II For Coating
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xProduct Details
| Product Name | Top Halgen Free Flame Retardant Ammonium Polyphosphate Phase II CAS 68333-79-9 Specially For Coating | Appearance | White Powder |
|---|---|---|---|
| Base | N And P Base | Environmentally | Friendly |
| Solubility | ＜0.45% | PH Value | 5.5-7.5 |
| Average Partical Size (D50) | 15-25UM | Application | Intumscent Coating |
| High Light | Coating Halgen Free Flame Retardant,APP II Halgen Free Flame Retardant,APP CAS 68333-79-9 |
||
Product Description
Top Halgen Free Flame Retardant Ammonium Polyphosphate Phase II CAS 68333-79-9 Specially For Coating
APP(ammonium polyphosphate) is mainly polymerized from monomeric diphosphorus pentaoxide(P2O5) and diammonium hydrogenorthophosphate(DAP)
APP is flame retardant using expansion mechanism.
APP decomposes ammonia gas and polyphosphoric acid at 275 ℃. Ammonia dilutes the oxygen concentration and at the same time expands and loosens the carbon layer to isolate heat.
APP is halogen free, environmental friendly.
Molecular formula : (NH4PO3)n n>1000
CAS No.: 68333-79-9
EINECS No.: 269-789-9
HS CODE: 2835.3990
Model No.: TF-201
Ammonium polyphosphate (Phase II) is a non-halogen flame retardant. It acts as a flame retardant by the intumescence mechanism. When APP-II is exposed to fire or heat, it decomposes to polymeric phosphate acid and ammonia. The polyphosphoric acid reacts with hydroxyl groups to form a nonstable phosphate ester. Following dehydration of the phosphate ester, a carbon foam is built upon the surface and acts as an insulation layer.
Index
| Appearance | White powder |
| P2O5 (w/w) | ≥71% |
| N Content (w/w) | ≥14% |
| Decomposition Temperature (TGA, 99%) | ＞275℃ |
| Solubility (10% aq. , at 25ºC) | ＜0.45% |
| pH value ( 10% aq. At 25ºC ) | 5.5-7.5 |
| Viscosity (10% aq, at 25℃) | ＜20 mpa.s |
| Moisture (w/w) | ＜0.25% |
| Average Partical size (D50) | 15~25µm |
Applications:
1. used to prepare many kinds of high-efficiency intumescent coating, the flameproof treatment for wood, multistory building, ships, trains, cables, etc.
2. used as the main flameproof additive for expanding-type flame retardant used in plastic, resin, rubber, etc.
3. make into powder extinguishing agent to be used in large-area outfire for the forest, oil field, and coalfield, etc.
4. In plastics(PP, PE, etc. ), Polyester, Rubber, and Expandable fireproof coatings.
5. used for textile coatings.
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