AMMONIUM POLYPHOSPHATE (APP)

1. Powder solid, stable property, convenient for transportation, storage and use;
2. pH value is neutral, safe and stable during production and use, good compatibleness, not to react with other flame retardant and auxiliary;
3. High P-N content, appropriate proportion, excellent synergistic effect and reasonable price.

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Description

1. Powder solid, stable property, convenient for transportation, storage and use;
2. pH value is neutral, safe and stable during production and use, good compatibleness, not to react with other flame retardant and auxiliary;
3. High P-N content, appropriate proportion, excellent synergistic effect and reasonable price.

1. Ammonium Polyphosphate (APP)

CAS No. 68333-79-9

EINECS No.: 269-789-9

Formula: (NH4PO3)n

2.Specifications:

Water-soluble Ammonium Polyphosphate

Appearance

 

White granular powder

P2O5 content

%

≥45

N content

%

≥24

pH value

( 1% aqueous solution )

6.5-8.5

Solubility  (25oC)

g/100ml H2O

>40

Solubility  (60oC)

g/100ml H2O

>80

Uses :
To prepare 20% P-N flame retardant, used solely or together with other materials in the flameproof treatment for textiles, papers, fibers and woods, etc. If special treatment, can be used to prepare high-concentration flame proof liquid to 50% to meet the flame proof requirement of special production.

 

Ammonium Polyphosphate(Type II )

Product description:
Ammonium Polyphosphate (Type 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 : 

Appearance

 

White powder

P Content

%(w/w)

≥31

N Content

%(w/w)

>14

Decomposition Temperature

oC

>270

Density(25oC)

g/cm3

~1.9

Solubility

g/100ml H2O, 25oC

~0.5

pH value

( 10% aqueous suspension )

5.5-7.5

Viscosity

(10% suspension, 25oC)

<100

Moisture

%(w/w)

<0.25

Average particle size

µm

~15

Particle size(<50 µm)

%(w/w)

>97

Uses : 
In plastics (PP, PVC, PE, etc. ), Polyester, Rubber,

Expandable fireproof coatings.

– 

Silane Modified Ammonium Polyphosphate (Type II )

 

 

-Reduce solubility in water;
-Reduce viscosity in water;
-Obviously improve dispersibility and compatibility with polymers and resins;

-Increase fluidity of powder;

-Improve thermal expansion efficiency during inflaming retarding process and insulation performance.

 

Specification : 

Appearance

 

White powder

P Content  

%(w/w)

>30

N Content  

%(w/w)

>13

Density(25oC)

g/cm3

~1.9

Solubility

g/100ml H2O, 25oC

~0.10

pH value

( 10% aqueous suspension )

5.5-7.5

Viscosity

(10% suspension, 25oC)

<20

Average particle size

µm

~15

Particle size(<50 µm)

%(w/w)

>97

Uses :

It has lower solubility in water and viscosity.These features make it is suitable for water-fast intumescent system in polymers(PU,PE,PBT, etc.) and paints.

1. Fiber materials( paper, wood, fireproof textile);
2. All kinds of polymers ( sunproof, waterproof, or fireproof outdoor materials);
3. Fire-refractory building board, coiled material;
4. Epoxy resin and unsaturated resin;
5. Cable and rubber;
6. Plastic material of electron device;
7. Textile

3.Packaging

Packaging Details: 25kg, 50kg or according to customer requirement

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