Quality index: Appearance:White particles Content: ≥ 98% Instruction: This product is a polymer of phenoxyphosphazene, with unique P, n hybrid structure, showing high thermal stability, flame retardant, high oxygen index (LOI) and low smoke release performance. It is an additive flame retardant, widely used in epoxy resin, powder coating, plastics and other polymer materials. Flame retardant plastics；Thermoplastic resin PC / ABS PC / PBT PPE / hips PP PE PA special engineering plastics；Thermosetting resin, epoxy resin, DAP, BT, phenolic resin, etc；PCB materials, electronic and automotive components, semiconductor sealants, polymer materials, etc. This product is a polymer of phenoxyphosphazene with unique P, n hybrid structure, high thermal stability, flame retardancy, high oxygen index (LOI) and low smoke release performance. It is an additive flame retardant and is widely used in epoxy resin, powder coatings, plastics and other polymer materials. Polyphenyloxyphosphazene (PPP) was synthesized by ring opening polymerization of Hexachlorocyclotriphosphazene. The structure and properties of PPP were characterized by NMR (31P, 1H, 13C), FT-IR and TGA. The pyrolysis mechanism of PPP was studied by pyrolysis gas chromatography-mass spectrometry (GC-MS). The results showed that PPP had good heat resistance, In the high temperature stage, there are different thermal decomposition modes. At 400 ℃, it is mainly the side group fracture, and above 500 ℃, it is mainly the main chain fracture PP-R / PDPP composites were prepared by melt blending modification of random polypropylene (PP-R) with polydiphenyloxyphosphazene (PDPP). The effects of PDPP on the mechanical and thermal properties of PP-R composites were analyzed. The results showed that the crystal form of PP-R changed from single α crystal form to mixed α and β crystal form with the addition of PDPP, The results show that the elongation at break and flexural strength increase with the increase of PDPP content, and PP-R / PDPP blends have higher thermal stability than pp-r Packing: 20kg / bag Storage precautions: store in cool, dry and well ventilated warehouse. Annual capacity: 500 tons / year