Melamine Polyphosphate (MPP)

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Uses
1. Melamine Polyphosphate is often abbreviated as MPP. It is mostly applicable to PBT and polyamides, especially PA6, PA66, glass fiber reinforced PA6, PA66 and more.
2. The flame retardant nylon mixed with our product can be applied in a variety of injection and extrusion molding processes. It can satisfy all kinds of processing demands of glass-fiber reinforced polyamides.

Characteristics
1. Melamine Polyphosphate is a kind of eco-friendly flameproof material with low toxicity and no halogen. It conforms to European Environmental Protection requirements.
2. Due to superb processability, this fireproofing additive does not require any special screws combination or special glass fiber.
3. Different from general halogenated flame retardants, MPP can protect both equipment and mould from corrosion.
4. Our product features outstanding thermal stability and decomposition temperature of at least 330℃, so it is extremely suitable for glass fiber reinforced nylon.
5. MPP is white in color, thereby being conducive to the preparation of various colors.

Storage and Transportation
Melamine Polyphosphate should be handled with care. It must be sealed in prevention of moisture during storage.

Brief Description

Synonyms	FR-NP; MPP
Chemical Formula	(C3H8N6)n(HPO3)m
CAS No.	218768-84-4
Appearance	White solid powder
Packaging	20kg woven bag
Production Capacity	1000mt/year

Quality Standard

Phosphorus	%	15.0±1.0
Moisture	%	≤0.2
Decomposition Temperature	%	≥330
Particle Size	μm	≤25
Density	g/cm3	Approximately 1.6
Bulk Density	g/cm3	Approximately 0.5

Application of FR-NP in Nylon

1. Formula (Weight Ratio)

PA66	49
Glass Fiber	25
FR-NP	25
Additives	1

2. Double Screw Processing Temperature in All Areas

Area 1 (Feeding)	Area 2	Area 3	Area 4	Area 5	Area 6	Area 7	Area 8 (Vacuum)	Area 9 (Die Orifice)
250	260	260	260	260	260	260	265	265

3. Performance Comparison between FR-NP Flame-retardant Glass Fiber Reinforced PA66 and Brominated Flame Retardant Glass Fiber Reinforced PA66 (Addition of 25％ Glass Fiber)

Properties		Br/Sb System	MPP
Tensile Strength (MPa)		145	150
Elongation at Break (%)		2.5	2.5
Bending Strength (MPa)		155	160
Flexural Modulus (GPa)		10	12
Notched Impact Strength (KJ/m2)		7	7
Vertical Combustion Performance UL94	1.6mm	V0	V0
	0.8mm	V0	V0
	0.4mm	NT	NT