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| OEM | OEM Services Provided |
| Feature | Good stability |
| Classification | Paint Additives |
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Phosphorus flame retardants are phosphate ester non-halogenated flame retardants, which are mainly used as non-halogenated (GREEN) flame retardants for various engineering plastics, rubbers and printed circuit boards.
| Category | Specifications |
|---|---|
| Chemical Type | Organic & inorganic phosphorus compounds |
| Common Examples | TCPP, TPP, RDP, APP |
| Mechanism | Gas-phase radical quenching & char formation |
| Efficiency | 20-30% loading in polymers |
| Property | Performance Data |
|---|---|
| Thermal Stability | 200-300°C (decomposition) |
| LOI Improvement | +5-15% (vs. non-FR polymer) |
| UL94 Rating | V-0 achievable (1.6mm) |
| Hydrolysis Resistance | Variable (APP > TCPP > TPP) |
| Industry | Typical Use |
|---|---|
| Electronics | PCB laminates |
| Construction | PU foams, cables |
| Textiles | Back-coatings |
| Automotive | Interior parts |
| Type | TCPP | TPP | APP |
|---|---|---|---|
| State | Liquid | Liquid | Solid |
| P Content | 9% | 9% | 30% |
| Water Sol. | Low | Low | High |
| Type | Examples | Key Feature |
|---|---|---|
| Organic Phosphates | Triphenyl phosphate | High compatibility with polymers |
| Phosphonates | Dimethyl methylphosphonate | Excellent thermal stability |
| Phosphinates | Aluminum diethylphosphinate | Synergistic with other FRs |
| Red Phosphorus | Amorphous red phosphorus | High phosphorus content (90%) |
| Advantages | Limitations |
|---|---|
| Lower toxicity vs. halogens | May reduce mechanical properties |
| Form stable char layers | Higher cost than conventional FRs |
| Work in both gas/condensed phases | Potential plasticizer migration |
| Industry | Application | Common PFRs Used |
|---|---|---|
| Electronics | Circuit boards, connectors | Resorcinol bis(diphenyl phosphate) |
| Construction | Insulation foams, cables | Ammonium polyphosphate |
| Automotive | Seat foams, composites | Aluminum phosphinate blends |
| Textiles | Protective clothing | Phosphonate oligomers |
Condensed Phase: Promotes char formation through dehydration reactions
Gas Phase: Releases PO• radicals to interrupt combustion chain reactions
Thermal Barrier: Forms protective glassy phosphate layers
References:
Fire Retardant Materials (Horrocks, 2001)UL 94 StandardDeclaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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