• Antimony trioxide for PVC and EVA Cable
  • Antimony trioxide for PVC and EVA Cable
  • Antimony trioxide for PVC and EVA Cable
Antimony trioxide for PVC and EVA Cable
  • Victory
  • China
  • Quantity(Tons) 1 - 10 11 - 40 41 - 100 >100 Est. Time(days) 5 7 15 To be negotiated
  • 2000T/Month

1.Antimony trioxide for Cable compared with using halogen-based flame retardants alone (which requires an addition of 15-20%), the combination of Sb₂O₃ (3-5%) can significantly enhance the flame retardant efficiency and reduce the material cost.
2.The decomposition temperature is over 400℃, which is compatible with the processing temperature of PVC (160 - 200℃). Antimony trioxide for Cable ensures that no smoke is produced during the processing.

Antimony Trioxide for PVC and EVA Cables: Enhancing Flame Retardancy and Performance


1. Introduction

Antimony trioxide in Plastics (Sb₂O₃) is a crucial flame retardant synergist used in PVC (Polyvinyl Chloride) and EVA (Ethylene-Vinyl Acetate) cable formulations. When combined with halogenated compounds, antimony trioxide in Plastics significantly improves fire resistance, ensuring compliance with international safety standards such as UL94, IEC 60332, and EN 50575.


This article explores:
√ Why antimony trioxide in Plastics is essential for PVC & EVA cables
√ Mechanisms of flame retardancy
√ Optimal formulations and benefits
√ Challenges and future trends


2. Role of Sb₂O₃ in PVC and EVA Cables

  • Flame Retardant Synergism

PVC: Contains chlorine (≈56%), antimony trioxide for PVC cable works with Sb₂O₃ to form antimony trichloride (SbCl₃)—a radical scavenger that suppresses flames.

EVA: Requires halogenated additives (e.g., decabromodiphenyl ether) since antimony trioxide for EVA cable lacks inherent flame retardancy. Sb₂O₃ boosts efficiency by 30-50%.


3. Advantages of Sb₂O₃ in PVC/EVA Cables

  • Cost-Effective Flame Retardancy

PVC: Antimony trioxide for PVC cable Chlorine + Sb₂O₃ provides low-cost self-extinguishing properties.

EVA: Antimony trioxide for EVA cable Reduces halogenated flame retardant usage by 20-30%, cutting costs.

  • Processing Benefits

Antimony trioxide for Cable Does not degrade at PVC/EVA processing temps (160-200°C).

Antimony trioxide for Cable Better flow than mineral fillers (e.g., ATH), improving extrusion speed.

  • Electrical Performance

Antimony trioxide for PVC cable Maintains high volume resistivity (>10¹² Ω·cm) in PVC insulation.

Antimony trioxide for EVA cable No negative impact on dielectric loss in EVA-based photovoltaic cables.


4. Conclusion

Antimony trioxide in Plastics remains the most cost-effective flame retardant synergist for PVC and EVA cables, offering:

  • Antimony trioxide for EVA cable Excellent fire resistance (UL94 V-0)

  • Antimony trioxide for PVC cable Good electrical insulation

  • Processing stability


ItemAppearanceAntimony Trioxide (Sb2O3)DensitySb2O3 contentOther content(ATH/MDH/DBDPE/CaCO3 /Zinc borate)
Antimony composite powder-80White powder99.80%3.73g/cm³80%20%
Antimony composite powder-90White powder99.80%3.73g/cm³90%10%












Company Introduction:

LIAONING VICTORY FIRE-RETARDANT MATERIAL TECHNOLOGY CO.,LTD. is a research and development, production and sales of integrated company mainly operate inorganic fire retardant and non-metallic mineral products.


Our main products contain Talc products, environmental flame retardants,  such as Magnesium Hydroxide,  Aluminium Hydroxide,  Silica Flame Retardant and Composit Flame Retardant,  CCM(MgO), Composit Magnesium Fertilizer,Antimony trioxide,Kaolin,Chlorite,CaCO3,Barite,Perlite,Fluorite,Titanium Dioxide and other non-metallic materials.

antimony trioxide for EVA cable

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