Intumescent fireproof coatings Polyurethane foams particularly PP, PE ,EVA etc....., Textile Coating,Casting resins based
Ammonium polyphosphate (APP-1 )
Molecular Formula: (NH4PO3)n
Appearance : White powder
Specifications:
P (%): | 31-32 |
N (%) | >14 |
Degree of polymerization | >1500 |
Density (g/cm3) | 1.9(g/cm3) |
Decomposition temperature | >275°C |
Moisture(% 110°C) | <0.25 |
Solubility in water (25°Cg/100mlH2O) | <0.2 g |
Viscosity (25°C in 10%suspension) | < 20 mpa.s |
PH | 5.5~7.5 |
Average particle size (um) | <15 |
* Crystal :Phase II
Intumescent fireproof coatings
On account of its low water solubility, APP-1 is particularly suitable as for intumescent fireproof coatings. Other essential components of intumescent systems include a binder, a carbon donor (e.g. pentaerythritol) and blowing agent (e.g. melamine).
Polyurethane foams
APP-1 is a suitable non-halogenated flame retardant for polyurethane foams. If handling of APP-1 as a solid is not possible we recommend the dosage of the flame retardant by preparing a APP-1/ polyol-suspension , it is also possible to incorporate this flame retardant in a APP-1 / isocyanate suspension.
Other applications
APP-1 has an excellent flame-retardant effect in cellulose-containing materials such as paper and wood products.
Because of its high heat stability, APP-1 is an essential component in intumescent formulations for thermoplastics, particularly PP, PE ,EVA etc....., Textile Coating,Casting resins based on epoxy resins or unsaturated polyester resins.
Shipping Informations
The package is 25kg paper bag inner-lined with PE bag or on customer’s request and can be loaded 17.5mt with pallet or 19.6mt without pallet in one full 20FCL.
ammonium polyphosphate(Phase II )
