Top 6 Flame Retardant Additives Used in Polymer Production

導入段落：
In the world of polymer manufacturing, safety and performance often come down to one key ingredient — the flame retardant additive.

スニペット段落：
The top six flame retardant additives used in polymer production are トリエチルリン酸塩（TEP）, 最も広く使用されているリン酸エステルの抽出用途について比較しましょう。, ポリリン酸アンモニウム（APP）, 水酸化アルミニウム（ATH）, Melamine Cyanurate (MCA), 乳化剤 Zinc Borate (ZB) — each engineered to prevent ignition, slow burning, and minimize smoke generation.

移行段落：
As modern materials evolve toward lighter and greener solutions, flame retardants are being redefined — no longer just for protection, but also for sustainability. Let’s explore these six key additives, how they work, and where they’re applied in polymer systems.

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1. トリエチルリン酸（TEP）

導入段落：
When performance and environmental safety must coexist, トリエチルリン酸塩（TEP） is the first choice.

スニペット段落：
TEPは phosphate ester–based flame retardant and plasticizer that offers excellent thermal stability and low toxicity — making it ideal for polyurethane foams, PVC, and coatings.

主な性質：

• Formula: C₆H₁₅O₄P
• Boiling Point: 215–220°C
• Purity: ≥99%
• Odor: Mild, neutral
• Halogen-Free: Yes

用途：

• ポリウレタン（PU）フォーム： Provides self-extinguishing behavior.
• PVC and Coatings: Improves flexibility and flame resistance.
• Adhesives & Sealants: Works as a reactive diluent and plasticizer.

Performance Highlights:
TEP promotes 炭化形成を促進し, which acts as a thermal barrier, slowing heat transfer during combustion.
東紅化学のTEP meets international REACH and RoHS standards, offering clean combustion and low VOC emissions — perfect for sustainable polymer systems.

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2. トリオクチルリン酸（TOP）

導入段落：
When high temperature and long-term durability are priorities, 最も広く使用されているリン酸エステルの抽出用途について比較しましょう。 leads the way.

スニペット段落：
TOPは hydrophobic phosphate ester used as both a flame retardant and plasticizer, providing superior heat resistance and oxidation stability.

Technical Details:

• Formula: C₂₄H₅₁O₄P
• Flash Point: ≥190°C
• Purity: ≥99%
• Density: 0.92–0.94 g/cm³

用途：

• Vinyl Polymers (PVC, PVDF): Enhances flame resistance and flexibility.
• Engineering Plastics: Used in polyamides and epoxy systems.
• 潤滑剤: Acts as a high-temperature stabilizer.

Performance Advantage:
TOP’s long alkyl chains make it thermally robust and hydrolysis-resistant, suitable for continuous industrial processes.
東紅化学の TOP phosphate ester is widely used in plastic compounding and electrical insulation materials.

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3. Ammonium Polyphosphate (APP)

導入段落：
In halogen-free flame retardant systems, ポリリン酸アンモニウム（APP） is the essential phosphorus-based choice.

スニペット段落：
APP is an inorganic polymeric compound containing phosphorus and nitrogen, which act synergistically to form a protective char layer when exposed to heat.

化学式： (NH₄PO₃)ₙ
分解温度： 250～300°C
外観： White powder
溶解性: Slightly soluble in water

用途：

• Intumescent coatings: Expands to form a heat shield.
• PP and PE Compounds: Common in wire and cable insulation.
• Epoxy Resins: Provides halogen-free flame resistance.

Performance Advantage:
APP is the backbone of intumescent flame retardant (IFR) systems — producing a foamed carbonaceous layer that protects the underlying polymer from oxygen and heat.

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4. Aluminum Hydroxide (ATH)

導入段落：
For decades, 水酸化アルミニウム（ATH） has been one of the most widely used inorganic flame retardants.

スニペット段落：
ATH functions by absorbing heat and releasing water vapor during decomposition, thereby cooling the polymer and diluting flammable gases.

化学式： Al(OH)₃
分解温度： ~200°C
Particle Size: 1–50 µm
色： White powder

用途：

• Thermosets (epoxy, polyester): Improves flame and smoke suppression.
• Elastomers: Used in wire and cable sheathing.
• PVC Compounds: Acts as both flame retardant and filler.

Performance Advantage:
ATH offers non-toxic, smoke-suppressing performance and improves mechanical strength when dispersed properly.
For high-temperature polymers, it’s often combined with phosphate esters (TEP or TOP) for synergistic effects.

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5. Melamine Cyanurate (MCA)

導入段落：
For engineering plastics like nylon and polyamide, Melamine Cyanurate (MCA) is the go-to additive.

スニペット段落：
MCA is a nitrogen-based organic flame retardant that releases non-flammable gases and forms char layers during combustion.

Chemical Structure: 2C₃H₆N₆·C₃N₃O₃
分解温度： 320–350°C
Form: White crystalline powder

用途：

• Polyamide (PA6, PA66): Maintains mechanical strength while increasing flame retardancy.
• PBT and PET Compounds: Improves UL-94 V-0 ratings.
• Thermoplastic Polyurethanes (TPU): Low migration and high stability.

Performance Advantage:
MCA is halogen-free, thermally stable, and highly compatible with engineering thermoplastics.
When used with リン酸エステル のように TEP, it provides synergistic flame retardant effects without compromising polymer clarity.

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6. Zinc Borate (ZB)

導入段落：
As a multifunctional inorganic additive, Zinc Borate (ZB) offers both flame retardant and smoke-suppressing properties.

スニペット段落：
ZB works by releasing crystalline water and forming glass-like barriers at high temperatures, which isolate the polymer from oxygen.

化学式： 2ZnO·3B₂O₃·3.5H₂O
分解温度： 290–420°C
Form: Fine white powder

用途：

• PVC, PE, and EVA: Works synergistically with ATH or APP.
• Epoxy Resins: Improves thermal stability and smoke suppression.
• Polyolefins: Enhances flame resistance and aging durability.

Performance Advantage:
ZB improves char integrity および reduces dripping during combustion — critical for achieving V-0 ratings in flame retardant testing.

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Dive Deeper: Synergistic Formulation Strategy

The best flame retardant performance often comes from combining multiple additives that address different mechanisms of combustion.

Combination	Synergy Effect	Target Polymer
TEP + ATH	Improved char formation and cooling	PU, PVC
TOP + MCA	Enhanced flame retardancy and mechanical stability	Nylon, PBT
APP + ZB	Strong intumescent effect and smoke suppression	ポリプロピレン
P204 + TEP	Metal surface protection and flame resistance	Coatings, resins

ドンホン化学 供給品 TEP, TOP, and P204 phosphate esters, engineered for use in flame retardant polymer systems that demand both performance and environmental compliance.

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Dive Deeper: Quality and Safety Considerations

When selecting flame retardant additives, always ensure:

• 純度 ≥99% for phosphate esters;
• No halogenated compounds (for eco-compliance);
• 低揮発性 to prevent odor and degradation;
• 熱安定性 suited for polymer processing temperatures.

ドンホン化学 ensures each phosphate ester batch meets strict QC criteria, including:

• Acid Value: ≤0.3 mgKOH/g (for TEP, TOP)
• Moisture: ≤0.1%
• Color: ≤30 APHA
• REACH & RoHS certifications

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Conclusion: Safer Polymers Through Smarter Chemistry

The top six flame retardant additives — TEP, TOP, APP, ATH, MCA, and ZB — represent the core of modern polymer fire safety.
Each works through a unique mechanism: forming char, releasing inert gases, or absorbing heat.
And when combined strategically, they deliver powerful, eco-friendly protection for plastics and coatings used in daily life.

With over a decade of manufacturing expertise, ドンホン化学 は提供します phosphate ester–based flame retardants that help polymer producers achieve high standards in safety, performance, and sustainability.

For technical guidance or bulk purchase inquiries:

📧 メール： dohollchemical@gmail.com
📱 WhatsApp： +86 139 0301 4781

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Donghong Chemical — Leading manufacturer of phosphate esters and surfactant-based flame retardant additives for polymer, coating, and textile industries worldwide.