Glass fiber reinforced PBT flame retardant

Prefessional
Halogen Free Flame Retardant Manufacturer

PBT Halogen Free Flame Retardant - EPFR-300B

Preniphor™EPFR-300B, mainly contains N and P, is a kind of halogen free environmentally friendly flame retardant. It has been developed especially for the glass fiber reinforced PBT, specially those needed good performance in Glow Wire Test. It functions in condensed phase and gas phase.

The flame retarded glass fiber reinforced PBT with EPFR-300B can pass the tests of UL 94 V-0 (1.5mm), GWIT 750℃(3.0mm) and GWFI 960℃(3.0mm). Moreover, it is of great thermal stability and keeps stable during processing. The products with EPFR-300B are characterized by less mold corrosion, great color stability, and excellent electrical properties ect.

Index:

Test Item	Unit	Target Value
Appearance	——	White Powder
Density	g/cm³	～1.0
Bulk Density	g/L	～350
Nitrogen Content	% (w/w)	～21.5
Phosphorous Content	% (w/w)	～23.5
Decomposition Temp.	℃	≥280
Average Particle Size	μm	～4
Water Content	% (w/w)	≤0.3

Recommended dosage:

Polymer		PBT(15% Glass Fiber)	PBT(20% Glass Fiber)	PBT(30% glass fiber)
EPFR-300B Dosage %		20	20	18
Flame Retardancy	UL 94	V-0 (1.5mm)	V-0 (1.5mm)	V-0 (1.5mm)
	GWIT	750℃(3.0mm)	750℃(3.0mm)	750℃(3.0mm)
	GWFI	960℃(3.0mm)	960℃(3.0mm)	960℃(3.0mm)