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AP766 flame retardant

Publisher:Novista  Date:2024-9-7 12:08:14 View quantity:9 

ProFlame® PNPO-766 (AP766)

 

 

PNPO-766   is   a   kind   of   Halogen-Free   flame   retardant   ,   which   develops   its effectiveness through phosphorus/nitrogen synergism.When the polyolefine on exposure to flame, the carbon foam layer formed protects the polymer through its heat insulating effect to reduce further oxygen access and prevent dripping of the polymer. At the same time there are no halogen hydride gases to cause.

 

 

Benefits

Particularly effective in thermoplastic polyolefins, urethanes (e. g. integral skin

foams, rigid foams, sealants), and epoxy resins (adhesives, sealants, structural laminates, gelcoats)

Positive secondary fire effects such as low smoke density, lower formation of toxic smoke

Non-halogenated flame retardant with favorable environmental and health profile

 

 

Technical Data:

Items                                                                                              Spec

Appearance                                                                 White free-flowing powder

P content, %                                                                                   23.0

N contante,%                                                                                 14.0

1% TGA Temperature, °C                                                             275

Average particle size, um                                                            D5015

Volatile,%                                                                                       0.5

Whiteness                                                                                      90.0

 

 

Recommended dosage:

 

Polymer

Usage guide

PP

UL94 V-0(1.6mm) - 18-20 wt% with 0.2% PTFE UL94 V-0(1.6mm) - 25 wt% without PTFE

UL94 5VA(2.0mm) - 30-35 wt%

PP with 10-30%GF

UL94 V-0(1.6mm) - 22-24 wt% UL94 5VA(2.0mm) - 30-35 wt%

LDPE

UL94 V-0(1.6mm) - 24-26wt% with 0.2% PTFE UL94 V-0(1.6mm) - 28wt% without PTFE

UL94 V-0(0.8mm) - 31-33 wt% with 0.3% EBS UL94 VTM-0(0.2mm) - 37-39 wt% with 0.3% EBS

HDPE

UL94 V-0(1.6mm) - 30-35 wt%

TPE

UL94 V-0(2.0mm) - 32-35 wt%

EVA(VA=18%)

UL94 V-0(1.6mm) - 24-26wt% with 0.2% PTFE

UL94 V-0(1.6mm) - 28wt% without PTFE



Processing instruction:

On the premise of ensuring the dispersion of flame retardants and uniform blending, the processing temperature of the twin screw should not be too high. Avoid causing a small amount of decomposition of flame retardants, resulting in slight foaming. Do not add a sieve during the extrusion process, as it may cause foaming. At the same time, a certain degree of vacuum must be maintained during the twin screw extrusion process.

 Do not use substances in the system that have adverse effects on flame retardancy. For example, Cl containing pigments such as phthalocyanine green can lead to flame retardant failure. When the amount of carbon black exceeds 0.5%, the flame retardancy decreases. Inorganic fillers (such as glass fiber, calcium carbonate, talc, Barium sulfate, etc.)will affect the flame retardancy.Adding additive containing Br and Cl can lead to the failure of flame retardants.

 Use a weak shear screw combination to avoid material decomposition caused by

excessive shear heat (refer to the recommended screw combination adjustment).


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