White Powder Halogen Free Flame Retardant Intumescent For Steel

Place of Origin CHINA
Brand Name Taifeng
Certification ISO9001, REACH, SGS
Model Number TF Series
Minimum Order Quantity 25KGS
Packaging Details 25kg/bag or 1mt /bag , 20mt/fcl with pallets
Delivery Time 5-8days
Payment Terms D/P, T/T, L/C
Supply Ability 8000mt/year

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Product Details
Products Name White Powder Halogen Free Flame Retardant Molecular Formula (NH4)n+2PnO3n+1
CAS NO 68333-79-9 HS CODE 28353990
EINECS No 269-789-9 Halogen Free
Smoke Low Eco-friendly Halogen-free
REACH Registered Application Steel
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Intumescent Halogen Free Flame Retardant


Steel Halogen Free Flame Retardant


White Powder Intumescent Flame Retardant

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Product Description

White Powder Halogen Free Flame Retardant Intumescent Flame Retardant For Steel



TF series flame retardants are mainly based on ammonium polyphosphate and halogen-free and environmental-friendly products. 




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) D50,14-18
Whiteness ≥85
Decomposition temperature T99%≥240℃
Color stain A
Conductivity(µs/cm) ≤2000
Acid value(mg KOH/g) ≤1.0
Bulk density(g/cm3) 0.7-0.9


Flame retardant mechanism of Phosphorus series flame retardant

The mechanism of phosphorous flame retardants is mainly the formation of isolation film to achieve the effect of flame retardants: the thermal degradation of flame retardants causes rapid dehydration and carbonization of the polymer surface, and then the formation of carbonization layer. Because elemental carbon does not perform the evaporative combustion and decomposition combustion of flame, it has the function of flame retardant protection. The flame retardant effect of phosphorous series flame retardants on oxygen-containing polymers is achieved by this method. The reason is that the final product of thermal decomposition of phosphorous compounds is polymetaphosphoric acid, which is a strong dehydrating agent.


White Powder Halogen Free Flame Retardant Intumescent For Steel 0



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.

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