paragraphe d'introduction :
In modern construction, safety isn’t optional — it’s engineered into every material. Flame retardant additives make that possible.
paragraphe d'extrait :
Le top five flame retardant additives for building materials sont Triethyl Phosphate (TEP), Trioctyl Phosphate (TOP), Triphenyl Phosphate (TPP), Ammonium Polyphosphate (APP), and Aluminum Hydroxide (ATH). These compounds reduce flammability, suppress smoke, and delay ignition in plastics, coatings, foams, and insulation.

paragraphe de transition :
Building materials today must meet increasingly strict fire safety standards. Whether for insulation boards, coatings, or polymer composites, choosing the right flame retardant additive directly impacts performance, compliance, and sustainability. This guide explores the top five options used in 2025 and how Ésters de phosphate de Donghong Chemical contribute to safer construction chemistry.
Why Flame Retardants Are Critical in Construction
paragraphe d'introduction :
Every second counts during a fire — and flame retardants give those seconds back.
paragraphe d'extrait :
Flame retardant additives are chemicals that slow or prevent the spread of fire by interrupting the combustion cycle. They release non-flammable gases, promote char formation, or absorb heat, thereby reducing ignition and flame propagation.
Common Applications in Building Materials:
- Polyurethane foams (insulation, furniture)
- PVC and epoxy resins (flooring, pipes, coatings)
- Textiles and wall coverings
- Wood coatings and sealants
- Thermoplastic composites used in ceilings and panels
Performance Goals:
- Achieve UL-94 V0 or EN13501 flammability ratings.
- Maintenir mechanical integrity and color stability.
- Meet low-smoke, halogen-free regulations.

1. Triethyl Phosphate (TEP)
paragraphe d'introduction :
Among organophosphorus compounds, Phosphate de triéthyle (TEP) stands out as a versatile flame retardant and plasticizer.
paragraphe d'extrait :
TEP est un colorless, non-halogenated phosphate ester that provides both flame resistance et processability in polymer systems.
Propriétés clés :
- Chemical Formula: (C₂H₅O)₃PO
- Point d'ébullition : 215°C
- Pureté : ≥99%
- Point d'éclair : 115°C
- VOC: Faible
Applications:
- PU foams and coatings: Acts as a reactive plasticizer and flame retardant.
- Epoxy resins: Enhances thermal stability and smoke suppression.
- PVC compounds: Improves flexibility and reduces ignition.
Avantages :
- Non-halogenated and environmentally friendly.
- Excellent compatibility with polymers and resins.
- High purity ensures transparency in coatings.
Produced by Donghong Chemical, TEP meets REACH, RoHS, and ISO9001 standards, ensuring safety and consistency for large-scale construction material formulations.
2. Trioctyl Phosphate (TOP)
paragraphe d'introduction :
When long-term thermal stability is required, Phosphate de Trioctyle (TOP) is the flame retardant of choice.
paragraphe d'extrait :
Le TOP est un neutral, high-boiling triester that combines excellent heat resistance with low volatility, ideal for high-performance polymers.
Propriétés clés :
- Chemical Formula: (C₈H₁₇O)₃PO
- Point d'ébullition : 380°C
- Pureté : ≥99%
- Couleur : ≤30 APHA
- Odor: Mild, low-VOC
Applications:
- Plasticizers in PVC cables and flooring.
- Flame-retardant additives in PU and epoxy systems.
- Coatings and sealants: Enhances flexibility and char formation.
Why It’s Effective:
- Maintains structural integrity under prolonged heat exposure.
- Produces stable char layers to insulate underlying material.
- Non-corrosive and halogen-free.
Le TOP de Donghong Chemical offre high thermal stability and consistent viscosity, ensuring smooth integration in polymer and coating systems for building materials.
3. Triphenyl Phosphate (TPP)
paragraphe d'introduction :
If you need both transparency and performance, Triphényl Phosphate (TPP) delivers excellent flame resistance with optical clarity.
paragraphe d'extrait :
TPP is an aromatic phosphate ester valued for its thermal stability, high refractive index, et low smoke emission lors de la combustion.
Propriétés clés :
- Chemical Formula: (C₆H₅O)₃PO
- Melting Point: 48°C
- Point d'éclair : 220°C
- Pureté : ≥99%
Applications:
- Rigid PVC and thermoset plastics: Enhances fire resistance.
- Architectural coatings: Adds flame retardancy and improves film hardness.
- Cellulose acetate and acrylic resins: Provides clarity and UV resistance.
Avantages :
- Maintains gloss and optical clarity.
- Excellent thermal aging resistance.
- Works synergistically with halogen-free flame retardant systems.
TPP complements TEP and TOP in hybrid formulations, balancing flame suppression and mechanical strength in modern construction materials.

4. Ammonium Polyphosphate (APP)
paragraphe d'introduction :
For solid-state flame retardant systems, Ammonium Polyphosphate (APP) is a key inorganic additive.
paragraphe d'extrait :
APP is a polymeric inorganic phosphorus compound that acts as a char-forming agent in intumescent coatings and plastics.
Key Mechanism:
- On heating, APP releases ammonia and phosphoric acid, forming a carbonaceous char that insulates and blocks oxygen flow.
Applications:
- Intumescent coatings for steel structures.
- Polypropylene and polyurethane foams.
- Fireproof coatings on walls, ceilings, and cables.
Avantages :
- Non-toxic, halogen-free.
- Excellent synergistic effect with melamine and pentaerythritol.
- Provides long-lasting fire resistance and smoke reduction.
APP is widely used in eco-friendly building materials, especially where zero-halogen standards are required.
5. Aluminum Hydroxide (ATH)
paragraphe d'introduction :
Simple, effective, and environmentally safe — Hydroxyde d'aluminium (ATH) remains a cornerstone of flame retardant technology.
paragraphe d'extrait :
ATH is a metal hydrate flame retardant that decomposes endothermically, releasing water vapor and cooling the substrate to suppress fire.
Propriétés clés :
- Chemical Formula: Al(OH)₃
- Decomposition Temperature: 200–220°C
- Apparence : White fine powder
- Non-toxic and halogen-free
Applications:
- PVC insulation and flooring.
- Paints, sealants, and cable compounds.
- Coating fillers for fireproof panels.
Avantages :
- Smoke and drip suppression.
- Good color stability and whiteness.
- Safe for indoor applications and compliant with LEED standards.
ATH, often combined with phosphate esters or APP, provides synergistic flame retardancy and improved mechanical strength in construction composites.
Dive Deeper: Synergistic Flame Retardant Systems
paragraphe d'introduction :
In advanced construction chemistry, flame retardants rarely work alone — synergy is the key.
paragraphe d'extrait :
Combinations of esters de phosphate (TEP, TOP, TPP) with APP or ATH produce multi-phase protection — a balance of vapor-phase flame inhibition and condensed-phase charring.
Example Synergistic Systems:
| Base Material | Additive Combination | Key Benefit |
|---|---|---|
| Mousse de polyuréthane | TEP + APP | Improved char strength and self-extinguishing behavior |
| Epoxy Coating | TOP + ATH | Smoke suppression and higher heat stability |
| PVC Compounds | TPP + APP | Balanced transparency and fire protection |
| Polypropylene | TEP + APP + Melamine | Enhanced limiting oxygen index (LOI) |
| Paints/Sealants | TOP + NP-10 Phosphate Ester | Improved flame retardancy and film adhesion |
Such combinations allow formulators to achieve halogen-free fire safety without sacrificing mechanical properties or visual quality.
Why Choose Donghong Chemical for Flame Retardant Additives
Donghong Chemical (Guangdong, Chine) spécialisé dans high-purity phosphate ester flame retardants for building materials, coatings, and polymer processing.
Principaux produits :
- TEP (Triéthylphosphate) : Flame retardant and catalyst for PU, epoxy, and coatings.
- TOP (Trioctyl Phosphate): High-temperature stable additive for polymer and coating systems.
- TBP (Tributyl Phosphate): Flame retardant and coalescent for paints and sealants.
- P204 (Phosphate d'2-éthylhexyle) : Corrosion inhibitor and anti-static modifier.
- NP-10 / AEO-3 Phosphate Esters: Surfactants that improve dispersion and film uniformity in flame-retardant coatings.
Forces de l'entreprise :
- 20,000-ton annual capacity with ISO-certified quality control.
- Pureté ≥99%, couleur ≤30 APHA, valeur acide ≤0,3 mgKOH/g.
- REACH, RoHS, and ISO14001 certified.
- Global export to Europe, South America, and Southeast Asia.
- Technical support for formulation and flame-retardant optimization.
Conclusion: Building Safety from the Chemistry Up
Flame retardants are more than additives — they are life-saving innovations built into modern construction materials.
De Phosphate de triéthyle (TEP) to Ammonium Polyphosphate (APP), these five compounds form the foundation of halogen-free, sustainable fire safety solutions for 2025 and beyond.
les esters de phosphate de haute pureté de Donghong Chemical deliver consistent flame-retardant performance, ensuring coatings, foams, and composites meet the world’s toughest safety standards — without compromising quality or sustainability.
For technical consultation or bulk purchase:
📧 Email : dohollchemical@gmail.com
📱 WhatsApp : +86 139 0301 4781
Donghong Chemical — Global manufacturer of phosphate esters and flame retardant additives for coatings, polymers, and building materials, dedicated to safer and cleaner construction chemistry.
