Phosphorus Flame Retardants

Phosphorus Flame Retardants not only react with the radicals like BFRs, but are also able to act in the condensed phase by enhancing char formation, yielding intumescence (foaming-up), or formation of inorganic glasses. In fact, PFRs are most commonly known as char formers, because during the burning process they produce phosphoric acids, which, reacting with the substrate, produce a char that acts as a protection of the substrate itself. The most used PFRs are as the table below, their main area of application is in polyamides(PA), polyesters(PET/PBT), polyolefins, and polystyrene (PS) formulations, especially in electrical and electronic insulation components.

NameCAS No.Chemical nameFeature
TPP115-86-6Triaryl phosphatesTPP Is a Halogen Free Flame Retardant Plasticizer For Phenolic Resin, Vinyl Resin, And Rubber.
BDP5945-33-5Bisphenol-A bis(diphenyl phosphate)BDP A Halogen Free Bisphosphate Flame Retardant Used For PC/ABS, PPO/HIPS, and Epoxy Resins. Synonym BAPP
RDP57583-54-7Resorcinol bis(diphenyl phosphate)RDP is a Halogen Free Phosphate Ester Flame Retardant Used For PC/ABS, PPO/HIPS. Replace FP 600
TCPP13674-84-5Tris(chloropropyl) phosphateTCPP Flame Retardant Is Used In the Production of Acetate Fiber, PVC, PU Foams, EVA, and Phenolics Materials. Replace PCF
APP68333-79-9Ammonium polyphosphateAPP Is An Ammonium Polyphosphate Flame Retardant Mainly Used In Plastic, Paint, Coating, Laminates, And Reinforced Materials. Replace 484, 486, C60, C30, and 3167
//Microencapsulated Red Phosphorus Flame RetardantThis Product Has High Ignition Point, High Comparative Tracking Index (CTI Value), No Frosting, No Moving, And No Corrosion Of Mould.
MPP218768-84-4Melamine polyphosphateMelamine Polyphosphate  Flame Retardant Is Mainly Used In PA And PBT, Especially PA6, and PA66.

External links

Flame Retardant Wikipedia UL 94 Wikipedia

Flame Retardant Brochure Download