HF-FR-340 is the latest development of environmentally friendly halogen-free flame retardant compound type, the product especially suitable for all kinds of glass fiber reinforced PA66, halogen-free flame retardant, it is different from the past halogen flame retardants, in the combustion process Expansion by producing a dense carbon layer to isolate the air flame retardant insulation purposes, but does not produce irritating hydrogen halide, and smoke, is a low smoke, low toxicity, environmentally friendly flame retardants. HF-FR-340 and PA66 plastic has good compatibility, with less and flame-retardant effect on the mechanical properties of plastics is small, while in the process has excellent thermal stability, anti-migration and anti-moisture absorption . HF-FR-340 does not contain Pb, Hg, Cr6 +, Cd heavy metal, excluding ten PBDEs, polybrominated diphenyl ether flame retardant halogen elements, through the SGS testing, in line with the EU RoHS, REACH, WEEE guidelines and IEC 61249-2 - 21. halogen-free standards.

Features
 

An excellent processing performance: product thermal stability, can be repeated processing, flame retardant, strength did not change significantly.
2 excellent mechanical properties: a good compatibility with resin, excellent dispersion, excellent mechanical properties.
3 good color stability: fire-retardant product is white, can be added all kinds of pigment color does not affect the coloring properties.
4 highly effective flame retardant: flame retardant, high efficiency, add less.
5 halogen Green: meet the EU RoHS, REACH, WEEE guidelines and IEC 61249-2-21. halogen-free standards.
6 weather is good: cold weather, UV ability, not precipitate, not absorb moisture.
7 reasonable price.

Appearance: white powder
Water content (%): ≤ 0.25
Particle size (D50 um): 10
Density (g/cm3): 1.30-1.40
Bulk density (g/cm3): 0.50-0.60
Thermal decomposition temperature (℃):> 280
 
Formulation and operation
  Kraft paper bag lined with PE bag, net weight 25 kg / bag.

Formulation and operation
 

Applications

HF-FR-340 for halogen-free flame retardant PA66, glass fiber reinforced products, the proposed addition level 22-25%.

HF-FR-340 products in the application of glass fiber reinforced PA66 reference formula and flame-retardant effect, performance comparison (see Table 1)

Table 1 HF-FR-340 products in the application of glass fiber reinforced PA66 reference formula and flame retardant

Processing Note:

Raw materials to pre-dry (<0.05% moisture) and, if necessary or required less water, HF-FR-340 can be dried at 120 ℃ for 4 hours.
Recommended processing temperature is about 255 ℃.
The premise of ensuring the uniform mixture, select the mild processing conditions as much as possible. Processing to maintain a certain vacuum, to maintain a certain head pressure, reduce the screw shear, shorten length of stay.