The flame retardants features are mainly evaluate through the UL-94 Vertical Burn Test.
This test classifies the flame retardants according to the performances and according to the following classification:
V-0: better performance: the flame extinguishes and there is no product dripping that could spread the
V-2: Lower performance: the flame extinguishes but there is some dripping.
The product DG HF 2000 allows to obtain a V-0 classification to UL-94 test.
Another test used to evaluate the anti-flame products is the oxygen index (LOI), i.e. the minimum level of oxygen at which the flame is preserved.
The product DG HF 2000 is characterized by a high oxygen index especially if compared with halogenated products.DG HF 2000 can also successfully reach the class B s1 d0 up to the standard UNI EN 13501-1.
Thanks to its chemical features the product, made up of phosphorus and nitrogen and characterized by the absence of halogens (“Halogen free”), is very performing in case of fire in terms of:
-Low optical opacity
-Low fumes corrosivity
-Negligible emission os toxic fumes such as Carbon Monoxide (CO), Cyhanidric Acid (HCN), Nitrogen Oxides
-Low heat emission
-Homogeneous Char with closed cells structure
Furthermore, this flame retardant produces positive effects to the features and performances of the material in which it is used in terms of:
-High aging resistance
-Good UV exposure stability
-Excellent colour stability
-Good preservation of the polymer mechanic properties
-Low compound density compared to inorganic flame retardants products
-Low load compared to Trihydrate Aluminium– Hydroxide Magnesium – Polyphosphate Ammonium