This product is a halogen-free flame retardant masterbatch with PA6 as the carrier, mainly used in nylon halogen-free flame retardant system, and the product meets ROHS requirements. When added to the polyamide resin during hot cracking or combustion, the surface of the resin will foam and expand to form a porous carbon layer, which plays the role of heat insulation, oxygen insulation, flame retardant and can prevent melting drops. The product also has a certain effect of inhibiting the amount of smoke, and does not produce toxic or corrosive gases. Compared with powdered flame retardants, this product has better dispersion and is easy to process. In the case of meeting the flame retardant grade, its mechanical properties are more stable, meeting the needs of dust-free workshop, and it also has better temperature resistance and mold release, no water absorption, no precipitation, stable color, and excellent thermal stability and processing performance. It can pass the double 85 test. I