brief introduction
Ammonium polyphosphate NEVEC-APP241 is a halogen-free flame retardant of phosphorus nitrogen type. The NEVEC-APP241 is a high degree of polymerization of the silane treated crystal II type ammonium polyphosphate product. The product is P and N with high flame retardancy, good thermal stability, near neutral and non-toxic and low smoke. With other gas sources, carbon sources, as well as carbon, expansion mechanism to play fire and fire protection.
DS as a unit test project target value) - TD)
Whiteness - more than 90 Chinese production
The density of g/cm ~1.9 V fand April
G/L ~700 production of tick density
The degree of Polymerization -- more than 800 April B.
The pH value (25 C, 1% suspension) - 7.0~~9.0 V April
Viscosity (25 DEG, 10% suspension) mPa s = 20 V April
The thermal decomposition temperature is greater than or equal to 260 April B.
P% (w/w) 29.0~31.0 V April
N% (w/w) 14.0~15.0 April B.
Water soluble% (w/w) = 0.5 V April
The average particle size of Um (D50) ~15 V April
Sieving remainder


% (w/w)
0 (40 mesh screen)
April tick
<0.001% (60 mesh screen)
April tick
<0.03% (150 mesh) April tick
The acid value of MgKOH/g is less than or equal to 1 April B.
Water content% (w/w)
When production is less than or equal to 0.5
Toxicity and environmental hazards -- not detected April tick


Remarks：
1) DS (Delivery specification): the product needs to be tested regularly to ensure that the product is in accordance with the standard value:
2) TD (Technical data): technical data is used only for product description, not as a regular test item data, as a test item.
3) tick that is selected.


Characteristic：
1. Heat stability is good.
2. The viscosity is small and the dispersion is good.
3. The water solubility is small, the resistance to precipitation and the resistance to migration are good.
4, the high degree of polymerization (n = 800), narrow molecular weight distribution range, low specific small molecular substances:
5, II type structure with high purity:
6. The particle size distribution is excellent.


Application scope:
NEVEC-APP241 is specially recommended for oil-based expansive fire retardant coatings and oily fabric layers.


Dilatant coating
NEVEC-APP241 has very low water solubility and is especially suitable for the acid source of the oil expansive fire retardant coating. Other important components of intumescent fire retardant coating include binder (such as acrylic acid), carbon source (such as pentaerythritol), gas source (such as melamine) and so on. After contact with the flame, the expansive fire retardant coating will form a dense carbon layer on the surface, effectively blocking the temperature of the bottom material. The application of NEVEC-APP241 to the expansive fire retardant coating has good compatibility, good performance of rainwater resistance and high flame retardancy efficiency.
Oil-based fabric coated adhesive
NEVEC-APP241 has good compatibility, good water resistance, good precipitation resistance and good flame retardancy efficiency.


Packaging / storage:
25kg/ package: transport according to general chemicals, store in dry and cool place, avoid sunshine.