This product is a phosphaphenanthrene-type cyclic phosphoric ester, a novel flame retardant intermediate with high thermal stability, antioxidative properties, and excellent water resistance. It is suitable for both reactive and additive flame retardants, used in polyester fibers, polyurethane foams, thermosetting resins, and adhesives. Reacting with epichlorohydrin and resorcinol, it forms flame retardants for electrical insulation and semiconductor materials, ensuring insulation, low volatility, and low pollution. DOPO is compatible with ABS, enabling flame-retardant transparent plastics and preventing discoloration in materials like ABS, PS, and epoxy resins. It is halogen-free, eco-friendly, and meets EU ROHS regulations.
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