Aluminum Hydroxide Flame Retardant Additive

Aluminum hydroxide flame retardant additive, as a benchmark category of inorganic halogen-free flame retardants, has become the preferred material in the fields of rubber modification, wire and cable, composite materials, fireproof coatings, electronic and electrical, new energy vehicles, and building materials due to its core advantages of non toxicity, low smoke, and high efficiency. Thus achieving the upgrade requirements of flame retardant efficiency, processing compatibility, and cost control, while enhancing safety and improving the intrinsic properties of materials.

Core strengths

1. Triple synergistic flame retardant mechanism

·Cooling effect: begins endothermic decomposition above approximately 200 ° C (with an endothermic value of up to approximately 1050 J/g), effectively reducing the temperature of the material surface and combustion zone.

·Dilution effect: The water vapor released by decomposition (up to 34.6% of its weight) dilutes the concentration of combustible gases and oxygen around the material.

·Barrier effect: The high-temperature resistant alumina (Al₂O₃) residue generated after decomposition forms a dense and strong protective layer on the surface of the material, isolating heat and oxygen and preventing deep materials from continuing to burn.

2. Optimized material performance

·High purity and high whiteness: Selected raw materials ensure product purity>99.5%, high whiteness, and do not affect the coloring properties of the product.

·Controllable particle size distribution: Provides different particle size specifications ranging from a few micrometers to tens of micrometers (such as D50: 1μm, 5μm, 15μm, 45μm, etc.) to meet different application needs from films, cables to engineering plastics.

·Excellent electrical insulation: The decomposition product alumina is an excellent insulator, especially suitable for flame retardant insulation of wires and cables, electronic and electrical components.

·Surface modification options: Models can be provided that have been surface treated with coupling agents such as silane and titanate, significantly improving compatibility with organic polymers and enhancing the flowability, mechanical strength (especially impact resistance), and processability of the filling system.

Application field

·Wires and cables: Used for flame retardancy of PVC, PE, EVA and other cable sheaths and insulation layers, meeting low smoke and halogen-free (LSZH/LSOH) standards such as EN 50532, IEC 60332-1, -3.

·Polymers and composite materials: widely used for flame retardant modification of thermosetting resins (epoxy resins, unsaturated polyesters for rail transit, ships, building panels), thermoplastic plastics (PP, PE for home appliance shells, automotive interiors), and rubber products (conveyor belts, sealing strips).

·Buildings and building materials: flame retardant additives used for PVC floors, wallpapers, waterproof rolls, thermal insulation foam and artificial stones, in line with building fire prevention specifications.

·Transportation industry: Meet the strict flame retardant and low smoke toxicity requirements for interior materials in aerospace, rail transit (such as EN 45545), automotive (such as ISO 6722) and other fields.

·Electronic appliances: A flame-retardant engineering plastic formula used for components such as sockets, switches, and casings.

Frequently Asked Questions (FAQ)

Q1: What are the core differences between aluminum hydroxide flame retardant additives and traditional inorganic flame retardants (such as magnesium hydroxide)?

A1: Core difference: ① Decomposition temperature: The initial decomposition temperature of aluminum hydroxide flame retardant additive is 228 ℃, suitable for EVA, PVC and other substrates processed at medium and low temperatures; Magnesium hydroxide decomposition temperature above 340 ℃ is more suitable for high-temperature processing of substrates such as PP and PA; ② Smoke suppression performance: The smoke density ratio of aluminum hydroxide flame retardant additive is ≤ 70, and the smoke suppression effect is much better than that of magnesium hydroxide (SDR≤85); ③ Processing adaptability: Aluminum hydroxide flame retardant additive has lower oil absorption value, better compatibility with resin, and less degradation of substrate mechanical properties under high filling.

Q2: How to determine the amount of aluminum hydroxide flame retardant additive added to different substrates?  

A2: Reference for addition amount: ① EVA cable material: 45% -60%; ② PP home appliance shell: 45% -55%; ③ Epoxy resin adhesive: 20% -30%; ④ Fireproof coating: 35% -50%.

If you are looking for a reliable, efficient, and sustainable halogen-free flame retardant solution? Taixing's aluminum hydroxide flame retardant additive will be a wise choice for you to achieve product safety upgrades. We will offer the lowest price cooperation, and Taixing will become your best partner!