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N-P Intumescent FR for PP(FR-PP NP)

Product description：

This product, mainly contained Nitrogen and Phosphorus, is a kind of halogen-free flame retardant for polyolefin, especially for PP. Otherwise, the modified PP can pass glow-wire test and GWIT 750℃&GWFI 960℃. Moreover, it is free from the restrictions of ROHS Directive 2002/95/EC approved by the EU and the Council. No anti-dripping agent.

Benefits：

1. Low dosage.（20-25% can reach UL94 V-0 3.0mm；35% can reach UL94 5VA）.

2. Halogen-free & environment-friendly.

3. When extrusion with PP, no water-sliding, with good water-resistance.

4. FR with PP can pass GWIT 750℃.

Specifications：

Items	Units	FR-PP NP
Appearance	---	White powder
N content	%	24±1
P content	%	21±1
Moisture	%	≤0.5
Bulk density	G/cm3	0.6-0.8
Particle size	D50/μm	≤10
Decomposition Temperature	℃	≥250
PH value	----	6-7

Formulation：

Polymer	PP	PP	PP	PP+20%GF	PP+10%talc	HDPE
FR-PP NP	23-25%	28-32%	33-35%	30%	33-35%	32-36%
UL94	V0(3.0mm)	V0(1.5mm)	5VA(2.0mm)	V0(1.5mm)	V0(1.5mm)	V0(1.5mm)

Processing:

        1. We suggest the processing temperature should below 250℃to avoid FR`s slight decomposition.

2. Keeping a certain vacuum degree when processing in double-screw extruder.

3. Fillers (such as CaCO₃、Talc、BaSO₄)can affect the flame retardant performance.

4. Glass Fiber can use in the system, but affect product`s color.

5. Carbon black is also applied for the system, but the dosage should below 0.5%.

Packaging and Handling

25kgs/bags with PE inner，handle with care, cold storage. In ventilated and dry condition.