brief introduction
Ammonium polyphosphate NEVEC-APP262 is a series of halogen-free flame retardant of phosphorus nitrogen type. NEVEC-APP262 has lower water solubility at normal temperature and low water solubility at high temperature, and it is completely incompatible with organic solvents. 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.


index
DS as a unit test project target value) - TD)
Whiteness - more than 88 Chinese production
The density of g/cm ~1.9 V fand April
G/L ~900 production of tick density
The degree of Polymerization -- more than 1000 Chinese production
The pH value (25 C, 1% suspension) - 5.5~~7.5 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 V April
N% (w/w) ~16.5 April B.
Water soluble% (w/w) = 0.04 V April
The average particle size (D50) Um ~10 possible conflicts
Sieve residue% (w/w) <0.2 (150 mesh) April tick
The acid value of MgKOH/g is less than or equal to 0.5 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.


Application scope
NEVEC-APP262 is a product of melamine formaldehyde resin, which can meet all application fields. Specially recommended for high water resistance, expansion coating, textile coating, thermosetting resin (epoxy resin, unsaturated resin, etc.).


Dilatant coating
NEVEC-APP262 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-APP262 to dilatant coatings has the following effects:
Steel structure material reaches the fireproof grade specified by DIN4102
The B1 grade of the building material specified by DIN4102 for wood or plastic
Adhesive or sealant NEVEC-APP262 added about 10~20%, can bring good flame retardant effect


Polyurethane foam material
NEVEC-APP262 is a halogen-free flame retardant suitable for polyurethane foam. It is not suitable for NEVEC-APP262 to be used in solid form. It is recommended to be made into NEVEC-APP262 polyol suspension. At the same time, because NEVEC-APP262 has lower acid value, it can also be configured as NEVEC-APP262/ isocyanate suspension. In order to prevent the suspension of the suspension, the suspension needs to be stirred or used for the flow and dispersion of the pump. Using NEVEC-APP262, the classification level can be reached as follows:


PU hard foam (density >30kg/m fand) DIN4102-B2
PU hard crust foam (density >200kg/m fand) DIN4102-B2/UL94V-0
PU/ polyester soft foam (density >30kg/m FMVSS 302-SE/ul 94-HF fand) 1


Other applications
NEVEC-APP262 can also be widely used in other fields:
The amount of paper and wood products NEVEC-APP262 is about 15~20%, up to DIN4102-B1
Epoxy resin UL94V-0
Unsaturated resin UL94V-0
Fabric related flame retardancy standard


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