Hexaphenoxy Cyclotriphosphazene is an additive halogen-free flame retardant, mainly used in epoxy resin laminates, PC, PC/ABS, PPO, polyolefin and polyester resin materials, etc. Generally, when the addition amount is 7%-15%, the flame retardant grade of the products can reach V-0, and its flame retardant performance is due to the traditional phosphorus-bromine flame retardant system. It can be used in the preparation of copper-clad boards and EMC for large-scale integrated circuit packaging, as well as in benzoxazine resin glass cloth laminates, LED light-emitting diodes, powder coatings and some other polymer materials.