The formula of PP halogen-free flame retardant, many models, the ame flame retardant in different polypropylene added amount, the flame retardant effect is also very different. At present, PP halogen-free flame retardants with piperazine pyrophosphate and triazine carbonizing agents as two formulation systems have a large amount in the polypropylene flame retardant market, which has a certain representative. PP halogen-free flame retardant LXF-C5800A has the characteristics of high decomposition temperature, good precipitation resistance,cheap price, no corrosion mold, no water slip, small smoke and soon. It can meet the GWIT750℃ and GWFI960℃ burning wire test, and the flame retardant reaches UL94V-0 (0.75mm), composite  RoHS, REACH and other directives. Different filling materials, glass fiber reinforced materials, different colors, appearance, transparent polypropylene products need to choose different types of PP halogen-free flame retardants.

Product Features

1,Decomposition temperature is high, good temperature resistance, the flame retardant is very stable in 270℃

processing temperature, meet the production process of most polypropylene products.

2,Suitable for glass fiber PP or mineral filled PP.

3,Has a lower price and good mechanical processing performance.

4,PP halogen-free flame retardant LXF-C5800A compared with similar products, in the process of polypropylene processing, can greatly reduce the proportion of precipitation. Fewer white spots on the surface of the product, and more beautiful appearance of the product.

5,The physical properties of the flame retardant are excellent, the fluidity is good, and the impact on PP melting finger is small.

6,The price is only 30-50% of bromo-antimony flame retardants, high cost performance.

Product indicators

Nitrogen content: 23-25%

Phosphorus content: 20-22%

Particle size: ~10μm

Density: 1.8g/cm3

Moisture ≦0.5%

Decomposition temperature≧270℃

Appearance: White powder

Recommended Dosage

Processing considerations

1, Talc powder, calcium carbonate, barium sulfate and other inorganic fillers will reduce the flame retardant efficiency. If necessary, we can customize our factory special filling model PP halogen-free flame retardant.

2,PP halogen-free flame retardant LXF-C5800A in nitrogen thermal decomposition temperature of 270℃, so the processing temperature of the twinscrew can be adjusted according to the specific situation to strengthen the dispersion and improve the effect of plasticizing. Several layers of screens can be added in the process of extrusion processing. A certain degree of vacuum must be maintained in the process of twin-screw extrusion.

3,Flame retardant dispersion, screw combination, processing temperature setting, etc., is an important factor to improve flame retardant efficiency, reduce foaming, reduce flame retardant precipitation.

4,The system has an adverse effect on flame retardant substances: phthalocyanine green and other Cl-1 color powder will lead to flame retardant failure. When the amount of carbon black is greater than 0.5%, it is flame retardant decline.

5, PP processing can be appropriate to add coupling agents, antioxidants, lubricants, compatibilizers and other additives, need to verify the adaptability of the above additives in the flame retardant system.

Used for example

1,Recipe

2,Processing technology

Model: twinscrew extruder 36 machine

Cutting block before adding fiber mouth: 45 °/5/32 five, 30 °/7/48 two, 45 °/5/32L one

Host temperature setting (℃) : 160, 180, 190, 190, 200, 200, 190, 190, 190, 180

Engine speed: 240-360rpm

3,Main performance

Note: All application data above are typical values of PP halogen-free flame retardant LXF-C5800A.

Flame retardancy mechanism

1,PP halogen-free flame retardant LXF-C5800A contains phosphorus, nitrogen, carbon three flame retardant elements, phosphorus and nitrogen elements in the process of flame retardant decomposition absorb a lot of heat, reduce the surface temperature of the material, delay the spread of the fire.

2,After the decomposition of phosphorus, phosphate or lipid compounds are formed to cover the surface of polypropylene materials, which plays a role in isolating oxygen and preventing heat exchange.

3,The decomposition of nitrogenous raw materials produces non-combustible gases, and has a dilution effect on oxygen and combustible gases, which plays an important role in preventing combustion.

4,The carbon forming agent is decomposed at high temperature,producing a large number of dense non-combustible coverings, preventing heat exchange and the convection of oxygen and combustible gas.

5,Polypropylene processing process toadd PP halogen-free flame retardant, high temperature decomposition will produce a certain amount of water vapor, can also play a heat absorption, flame retardant effect.

Applications

PP halogen-free flame retardant LXF-C5800A is widely used in electrical control boxes, new energy batteries, Christmas lights, wood plastic products, rail transit, flame retardant pipes and soon.

Packaging/storage

25kg/ package: according to the general chemical transport, storage in a dry and cool place, avoid direct sunlight.

PP halogen-free flame retardant LXF-C5800A can be used in PP+POE, PP+SEBS, PE, EVA or PE/EVA alloy and other modified  materials, compared with similar products in the APP system, its decomposition temperature,precipitation resistance, compatibility, flame retardant efficiency, processing performance and so on have greater advantages. Adding PP halogen-free flame retardant LXF-C5800A polypropylene products have the advantages of high elongation, high impact strength, low density and soon.