Antimony Oxide

Antimony oxide (Sb₂O₃/Sb₂O₅) CAS No. 1309-64-4 (antimony trioxide)/1314-60-9 (antimony pentoxide). Taixing relies on its independently developed "plasma oxidation vacuum purification integrated process". Through atomic level purity control, submicron level morphology design, and surface energy engineering, we have elevated antimony oxide from a basic chemical to an engineering grade functional material that can accurately regulate combustion chemical reactions and ensure ultimate safety redundancy.

Core strengths

1. Ultra pure quality and multi-dimensional performance control

-Antimony trioxide (Sb₂O₃): main content ≥ 99.99%, key impurity As₂O₃ ≤ 0.01% PbO≤0.02%， Far superior to industry standards, eliminating the risk of harmful substance migration; Whiteness ≥ 99, average particle size can be customized to 0.3-5 μ m (optional at the nanometer level of 50-200nm), cubic crystal proportion ≥ 98%, excellent dispersibility, and does not affect the natural color and processing performance of the substrate.

-Antimony pentoxide (Sb₂O₅): main content ≥ 99.95%, specific surface area 60-90m ²/g, light yellow ultrafine powder, outstanding acid resistance and oxidation stability, suitable for high-end flame retardant and catalytic scenes; Moisture content ≤ 0.1%, using vacuum freeze-drying process, long-term storage without clumping risk.

-Common advantages: Density of 5.2-5.67g/cm ³, melting point of 656 ℃, extremely strong thermal stability, able to withstand processing temperatures above 300 ℃ (antimony pentoxide thermal stability>500 ℃), no decomposition weight loss phenomenon, suitable for various processes such as extrusion, injection molding, and vapor deposition.

2. Innovative modified technologies enhance functional synergy

-Adopting the dual coating process of "silane coupling agent-KH560+phosphorus nitrogen composite modifier", an organic functional layer is formed through chemical bonding, which improves compatibility with polymers such as PP, PVC, epoxy resin by 60%, completely solves the problem of agglomeration, and retains mechanical properties of over 95%.

-The synergistic effect of antimony trioxide with halogenated and halogen-free phosphorus nitrogen flame retardants is significant, rapidly generating antimony halide gas-phase flame retardant layer and dense carbon layer during combustion. The flame retardant level can be upgraded from V2 level to V0 level, with a limit oxygen index (LOI) ≥ 36 and a smoke density level (SDR) ≤ 55, reducing the release of toxic smoke.

-Antimony pentoxide has dual functions of catalysis and flame retardancy, and performs excellently in high-end coatings and catalyst carriers. It can enhance the material's weather resistance and reactivity, and meet the low impurity requirements of semiconductor packaging materials.

Application scenarios

new energy sector

-Applications: Electrolyte additives for solid-state batteries, raw materials for liquid antimony batteries, high-voltage wiring harnesses for new energy vehicles, and casings for energy storage equipment

-Advantages: Antimony trioxide can optimize the ion conductivity of sulfide electrolytes, while antimony pentoxide helps improve battery cycling stability; Flame retardant performance meets UL 94 V0 level requirements, suitable for 650Wh/L high-energy density battery scenarios

-Recommended dosage: 3% -8% (battery material)/6% -12% (flame retardant wire harness)

Semiconductor and Electronic Electrical Field

-Applications: AI server cabinets, semiconductor packaging materials, infrared detectors (antimony precursor), 5G base station equipment casings

-Advantages: Electronic grade purity to avoid impurities interfering with chip performance, flame retardant efficiency suitable for 700W/chip high-power chip heat dissipation requirements; As a precursor of indium antimonide (InSb) and gallium antimonide (GaSb), it supports the manufacturing of infrared sensors

-Recommended dosage: 2% -6% (packaging material)/5% -10% (electronic casing)

Plastic and rubber industry

-Application: PVC pipe/profile, PP film, ABS household appliance shell, PU foam, epoxy resin composite

-Advantages: Good dispersion, does not affect product appearance and processing fluidity, collaborative flame retardant system can reduce the amount of main flame retardant added by 25% -35%, and reduce overall costs

-Recommended dosage: 4% -15% (halogenated synergistic system)/8% -20% (halogen-free synergistic system)

Architecture and high-end specialty fields

-Application: Fireproof coatings, flame-retardant boards, insulation materials, high-end ceramic glazes, catalyst carriers

-Advantages: Compliant with EU CPR building regulations, with a Limiting Oxygen Index (LOI) of ≥ 32 and low smoke density; Antimony pentoxide can enhance the weather resistance and catalytic efficiency of coatings, making it suitable for industrial catalytic scenarios

-Recommended dosage: 7% -18% (fireproof coating)/1% -5% (catalyst carrier)

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