Prefessional 
Halogen Free Flame Retardant Manufacturer

Flame Retardant for Epoxy Resin - EPFR-APP223



Among the Preniphor™ EPFR-APP(Ⅱ) series of Nitrogen-phosphorus inorganic flame retardants, EPFR-APP223 is a kind of high polymerization degree and crystal typeⅡ ammonium polyphosphate without activation and surface treatment. It is in high content of Phosphorus & Nitrogen, it takes effect by char formation and intumescent mechanism. 


EPFR-APP223 is highly recommended for epoxy resin.


Index:

Test  Item

Unit

Target Value

Whiteness

——

≥88

Density

g/cm³

～1.9

Bulk Density

g/L

～700

Polymerization Degree

——

≥1000

pH Value (25℃,10% Suspension)

——

7.5～9.0

Viscosity (25℃, 10% Suspension)

mPa.s

≤300

Decomposition Temp.

℃

≥260

Phosphorus

% (w/w)

31.0～32.0

Nitrogen

% (w/w)

14.0～15.0

Water Solubility

% (w/w)

≤0.8

Average Particle Size (D50)

μm

～18

Residue on Sieve

% (w/w)

    0    （40 meshes）

＜0.001% （60 meshes）

 ＜0.03%  （150 meshes）

Acid Number

mgKOH/g

≤1.0

Water/Moisture

% (w/w)

≤0.2

Toxicity And Environmental Hazard

——

Not Detected







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