Factory Direct TF-201 Ammonium Polyphosphate Flame Retardant APP for Fireproof Coating

Ammonium polyphosphate (Phase II) is a non-halogen flame retardant. It acts as flame retardant by 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 phosphateester. Following dehydration of the phosphateester, a carbon foam is built up on the surface and acts as an insulation layer.

Specification	TF-201
Appearance	White powder
P content (w/w)	≥31
N content (w/w)	≥14%
Degree of polymerization	≥1000
Moisture (w/w)	≤0.3
Solubility （25℃, g/100ml）	≤0.5
PH value (10% aqueous suspension, at 25ºC)	5.5-7.5
Viscosity(10% aqueous suspension, at 25ºC)	<10
Particle size (µm)	D_50,14-18
Particle size (µm)	D₁₀₀<80
Whiteness	≥85
Decomposition temperature	T99%≥240℃
Decomposition temperature	T95%≥305℃
Color stain	A
Conductivity(µs/cm)	≤2000
Acid value(mg KOH/g)	≤1.0
Bulk density(g/cm³⁾	0.7-0.9

It has good stability in water . The stability test of APP phase II in 30℃ water 15days.

	TF-201
Appearance	Viscosity slightly increased
Solubility（25℃, g/100ml water）	0.46
Viscosity（cp, 10% aq, at 25℃）	＜200

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 forest, oil field and coal field, etc. 4. In plastics(PP, PE, etc. ), Polyester, Rubber, and Expandable fireproof coatings. 5. Used for textile coatings. Packing: TF-201 25kg/bag, 24mt/20’fcl without pallets, 20mt/20’fcl with pallets. Other packing as request. Storage: in dry and cool place, keeping out of moisture and sunshine, min. shelf life one year.