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Polymer Tailoring APP 102

Polymer Tailoring APP 102 is our high molecular weight ammonium polyphosphate offering. Surface coated with silane, it exhibits very low water solubility for ease of processing.

Functions: Flame Retardant

Chemical Family: Phosphates

Compatible Polymers & Resins: Polyesters, Polyurethanes (PU)

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family
    Plastics & Elastomers Functions

    Features & Benefits

    Labeling Claims
    Features
    • Extremely low water solubility
    • Extremely low viscosity in aqueous suspensions
    • High heat stability
    • Reduced viscosity in PU polyol suspensions
    • Low acid number

    Applications & Uses

    Compatible Polymers & Resins
    Applications

    APP 102 is ideally suited for intumescent coatings and polyurethane foams where ammonium polyphosphates have traditionally been employed. For intumescent coatings, it is particularly suitable as an “acid donor”, because of its low water solubility. For polyurethane foams, it is used as a halogen-free flame retardant for PU rigid foams, PU rigid integral foams and PU/Polyester flexible foams.

    Properties

    Typical Properties
    ValueUnitsTest Method / Conditions
    Phosphorus content31.0-32.0%(w/w)
    Nitrogen content13.5-14.5%(w/w)
    Solubility in water (at 25°C in 10% suspension)0.08%(w/w)
    Acid number (10% suspension)max. 1mg KOH/g
    Decomposition temperaturemin. 275°C
    Density at 25°C1.9g/cm³
    Apparent densityapprox. 0.7g/cm³DIN53466
    Average particle size (D50)approx. 15microns