Glass fiber reinforced nylon halogen-free flame retardant
FR701 is suitable for hypophosphate flame retardants enhanced with PA6 and PA66, non-halogenated flame retardants based on organic hypophosphonates. This product achieves flame retardant effect by expanding foam. The thermoplastic polymeric material containing FR701 is crosslinked by fire foaming, thus forming a stable coked carbon layer and isolation layer on the surface. The protective layer has a thermal insulation effect that reduces oxygen entry and prevents dripping of the molten polymer. The appearance of FR701 is a white powder, which has high flame retardant efficiency in polyamide, does not corrode the mold during extrusion, and is affordable.price.