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SY-T008

Phosphorus-Nitrogen Based Flame Retardant

SY-T008

SY-T008 is a phosphorus-nitrogen, halogen-free, non-toxic and antimony-free flame retardant that can completely replace antimony trioxide (Sb2O3 ≥ 99.5%) in PU solvent-free, PVC leather and microfiber leather applications, reducing costs and smoke density with anti-dripping effect.

Available Models

  • SY-T008SY-T008

Product Details

SY-T008 is a phosphorus-nitrogen type flame retardant. It is halogen-free, non-toxic and antimony-free, with high flame retardant efficiency.

It can completely replace antimony trioxide (Sb2O3 ≥ 99.5%) in PU solvent-free, PVC leather and microfiber leather flame-retardant applications, meeting the requirements of cost reduction, lower smoke density and heat aging resistance. It has an anti-dripping effect that effectively improves the high-temperature melt dripping phenomenon during combustion.


Flame-Retardant Mechanism

During combustion, an expanded, dense and firm char layer forms on the substrate surface, effectively blocking heat transfer to the substrate and cutting off oxygen diffusion into the polymer. Meanwhile, the material efficiently captures free radicals in the combustion chain reaction, generating relatively inert substances, lowering combustion energy release and suppressing sustained burning of the substrate.


Features

  • 1.Completely replaces antimony trioxide (Sb2O3 ≥ 99.5%);
  • 2.low specific gravity allows a higher filler loading ratio, greatly reducing production costs.
  • 3.Improves material processability without affecting mechanical properties, and provides flame-retardant and smoke-suppression effects in flame-retardant systems.
  • 4.Complies with the EU RoHS and REACH environmental protection directives.

Technical Parameters

ProjectUnitData
Content%≥ 99.85
Whiteness-≥ 96.0
Moisture content%≤ 0.30
Particle diameter (D50)µm3.10
Stacking densityg/cm³0.37–0.42
Thermal weight loss (200℃)%0.3–0.5
Decomposition temperature℃≥ 350


Application Data Testing

PVC formula example: PVC 100, DPHP plasticizer 100, SY-T008 4, calcium-zinc stabilizer 3 (PHR). PU formula example: PU 100, SY-T008 10 (PHR).

ComponentFunctionDosage (PHR)
PVCResin100
DPHPPlasticizer100
SY-T008Eco-friendly flame retardant4
Calcium-Zinc stabilizerHeat stabilizer3


Applications

Widely used in soft polymer products with strict requirements for flame retardancy, environmental friendliness and material cost. Suitable for PU solvent-free, PVC leather and microfiber leather flame retardancy, especially in automotive interior leather.


Packaging & Storage

20KG/bag, paper bag with PE inner lining. Please store it indoors and keep it well-ventilated and dry.