Halogen free Flame Retardant HFFR
Flame Retardant Definition
Combustion could occur when a substance is heated to its flammable temperature in the presence of oxygen. Flame retardants are generally designed to provide a particular level of resistance to ignition or flame spread. This is achieved by suppressing oxygen availability, building up of char at the surface, inhibiting the combustion reaction within the flame area, or by other mechanisms. Nearly all the present-day commercial FRs and smoke suppressants can be divided into several chemical groups as the table below. Halogen free flame retardants also known as Non-halogenated flame retardants, HFFR, include phosphorus and nitrogen compounds while do not contain bromine and Chlorine. Also known as HFFR.
Nitrogen flame retardant
Nitrogen-containing flame retardants may act by the release of inert gases like ammonia and nitrogen into the gas phase or by condensation reactions in the solid phase.
Baoxu nitrogen FRs include Melamine Cyanurate MCA which is a Halogen‐Free Flame-Retardant For Polyamide Used In Electrical & Electronic Applications. Grade MCA8, MCA15, MCA25.
Phosphorus-based flame retardant
PFRs not only react with 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.
TPP Is a Halogen Free Flame Retardant Plasticizer For Phenolic Resin, Vinyl Resin, And Rubber.
BDP is a Halogen Free Bisphosphate Flame Retardant Used For PC/ABS, PPO/HIPS, and Epoxy Resins. Replace FP 600.
RDP is a Halogen Free Phosphate Ester Flame Retardant Used For PC/ABS, PPO/HIPS.
TCPP Flame Retardant Is Used In the Production of Acetate Fiber, PVC, PU Foams, EVA, and Phenolic Materials. Replace PCF
APP Is An Ammonium Polyphosphate Flame Retardant Mainly Used In Plastic, Paint, Coating, Laminates, And Reinforced Materials. Replace 484, 486, C60, C30, and 3167
Melamine Polyphosphate Flame Retardant Is Mainly Used In PA And PBT, Especially PA6, and PA66.
BX FR 1230 is high performance organic phosphate flame retardant for nylon, PBT.
Sulfonate flame retardant
KSS FR is the potassium salt of a complex of diphenyl sulfone sulfonate and diphenyl sulfone sulfonate. HES FR is specifically designed for the most effective translucent and opaque PC. It is not intended for a transparent PC.
table 5 baoxu sulfonate flame retardant includes KSS and HES, HES- FR Is An Efficient Sulfosalt Flame Retardant, Mainly Used In PC, PC/ABS. Replace HES-FR. and KSS same application, replace KSS-FR.
Halogen Free Flame Retardants by Application
table 1 baoxu flame retardant additive by applications
| Resin Type | Name | Tests | Application |
| PP | FR PP V0 GWFI | UL94 V-0, GWIT750°C, GWFI 960°C | PP products, such as warm air blowers, electrical sockets, wind turbines, and wind drum |
| PP | FR PP V0 A | UL94 V-0, DIN 4102 B1, BS 5852, GB 5455 | PP products, also adhesives or sealants, Papers, Coating fabrics |
| PP | FR PP V0 NA | UL94 V-0, UL1581 VW-1, GWIT750°C, GWFI 960°C | Wire, Headphone cable, Plug， Power cable, Rice cooker, Toilet lid, Interior accessories of Bullet train |
| PP | FR PP V2 | UL94 V-2, GWIT 750°C, GWFI 850°C | Electronic appliance socket and structure, auto parts |
| PP | FR PP V2 MB | UL94 V-2, GWIT 750°C, GWFI 850°C | Electronic appliance socket and structure, auto parts |
| PE | FR PE MB | PE extrusion | |
| PE | FR LDPE MB | LDPE film | |
| PA | FR PA V0 | UL94 V-0, GWFI 850°C | Glass fiber-reinforced nylon products, such as electrical tools |
| PBT | FR PBT V0 | UL94 V-0, GWIT 750， GWFI 960°C | Electrical socket, Switch, Junction box, etc. made from PBT with FR |
| TPE | FR TPE V0 | UL1581 VW-1 | Communication cables, Computer wires, Cell phone charging lines, Earphone wires, Automotive wires, etc. |
| TPU | FR TPU V0 | UL1581 VW-1 | Communication cables, Computer wires, Cell phone charging lines, Earphone wires, Automotive wires, etc. |
| Epoxy Resin | FR EP V0 | UL94 V-0 | epoxy resin |
| Fabric Coating | FR FC V0 | GB 17591 B1, GB 8965.1 A, GB 50222 B1, BS 5852, GB 5455 | Fabric coatings, etc. |
| Paper | FR P B1 | B1 | Paper, leatherwear, fabric, wood |