HF-T914 DOPO-DDP Reactive Flame Retardant Halogen-Free 9% Phosphorus Content for PET Fibers PU Foams 8-12% Loading

HF-T914 is [(6-Oxido-6H-dibenz[c,e][1,2]oxaphosphorin-6-yl)methyl]butanedioic acid (DOPO-DDP, CAS: 63562-33-4), a reactive phosphorus-based flame retardant with dual gas-phase radical quenching and char-forming mechanisms. Designed for fiber and foam applications, it offers permanent flame retardancy without migration.

• Reactive grafting: Bonds covalently with polymers (PET/PU)
• Wash-resistant: Passes >50 laundering cycles (AATCC-135)
• Achieves UL94 V-0 in PET fibers at 8-12% loading

• Halogen-free: Br/Cl
• Low smoke density:
• Oral toxicity: LD50 >2000 mg/kg

• Esterification at 240-260°C
• IV ≥0.72 dL/g for fiber spinning

• Max processing temp: 180°C
• Avoid tin catalysts

• Certifications: RoHS, REACH, IMO FTP Code (for marine)
• Packaging: 25kg anti-static bags
• Storage: 18 months @

Manufacturer Information

Zhuhai Complord New Materials Co., Ltd. is a high-tech enterprise specializing in environmentally friendly flame retardants with liquid/solid phase synthesis capabilities. The company operates from a 30,000m² facility with annual production capacity of 22,000 tons.

The company maintains partnerships with leading research institutions including the Institute of Chemistry, Chinese Academy of Sciences, and major universities. Products include phosphorus flame retardants, nitrogen flame retardants, and intumescent flame retardants across 9 series, suitable for PP, PA, PBT, TPE, PE/EVA, PVC substrates used in automotive, electronics, wire & cable, and industrial applications.

Quality Standards: ISO9001 certified with multiple high-tech patents. Products comply with RoHS, REACH, and industry flame retardant standards.