Ammonium Polyphosphateδ (Phase II)
Molecular formula : (NH4PO≥£₩∞3)n n>1000 CAS Noα€ .: 68333-79-9 EINECS No.: 269-σ>β789-9 HS CODE: 2835.39→α↔90 Model No.: TF-FR₹™σ201, TF-FR201S
Product introduction
Ammonium polyphosphate (Phδ€∏✘ase II) is a non-halogen flam₩'e retardant. It acts aαβ☆s flame retardant by intumes←π<₹cence mechanism. When APP-II is expose↓<d to fire or heat, it decomposes§♦ to polymeric phosphate acid and a✘¥mmonia. The polyphosphoric ac£®♠id reacts with hydroxyl groups $ to form a nonstable phosph♦₹₹÷ateester. Following dehydration of the ♦ phosphateester, a carbon foam i♠÷↔∞s built up on the surfac♣₽π₩e and acts as an insulation la♠ ÷'yer.
Features
1. Good thermal stabilit'α♥σy; low water solubil ↕ity, good resistance ≤to precipitation and migr≥&αation
2. Narrow polymerization degree d ★₩★istribution range, high poקlymerization degree (average polymeriza∑δεtion degree is greater than 2000)
3. Low viscosity and gooΩ≤♦d dispersion
Product Usage
1. Used to prepare many kin✘≥ds of high-efficiency intumesc×₹$♣ent coating, the flameproof&nb¶'sp;treatment for wood, multistory building, ships, trains, cabl↕ es, etc.
2. Used as the main flameproof additiv≈≈e for expanding-type flame ret>α™♠ardant used in plastic, resin, &"↑★rubber, etc.
3. Make into powder extinguishi♠→ ng agent to be used in ♠₽¥↓large-area outfire for f∏¶εorest, oil field and coal field, etc.
4. In plastics(PP, PE, etc. ), Pol>±yester, Rubber, and Expandable firepro ₩of coatings.
5. Used for textile coatings.
Product index
Specification | TF-FR201 | TF-FR201S |
Appearance | White powder | White powder |
P2O5 (w/w) | ≥71% | ≥70% |
N Content (w/w) | ≥14% | ≥14% |
Decomposition Temperature (TGA, 99%) | ＞275℃ | ＞275℃ |
Solubility (10% aq. , at 25ºC) | ＜0.45% | ＜0.7% |
pH value (10% aq., at 25ºC ) | 5.5-7.5 | 5.5-7.5 |
Viscosity (10% aq, at 25℃) | ＜20 mpa.s | ＜20 mpa.s |
Moisture (w/w) | ＜0.25% | ＜0.25% |
Average Partical size (D50) | 15~25µm | ＜12µm |
Packing : TF-FR201 25kg/bag, 24mt/20’fcl without pallet♦§↓s, 20mt/20’fcl with pallets. Other ♠÷Ωpacking as request.
&nbs←♥•Ωp; TF-FR201S 20kg/bag, 20mt/20’fcl without pal₽φlets, 18mt/20’fcl with pallets. Other✔σ☆ packing as request.
Storage: in dry and cool place, keeping out of δδmoisture and sunshine↔∞α&, shelf life two year.
