This product is a high concentration (50%) flame retardant masterbatch of PP carrier, mainly used for V-2 grade flame retardant PP system, endows PP products with high flame retardant properties (UL-94 1.5mm V-2, GWIT 750℃ ). This product has high environmental protection performance and can meet the requirements of EU ROHS directive. The obtained flame retardant product has the characteristics of low density, low smoke emission and the like.