Flame Retardant Aluminum Hydroxide

The flame-retardant aluminum hydroxide produced by Taixing completely changes the traditional efficiency of ATH, which is characterized by high filling and low performance. It is widely suitable for various application scenarios such as rubber products, wires and cables, composite materials, and fire-resistant coatings. Provide green and flame-retardant solutions for manufacturing enterprises.

Core strengths

1. Synergistic flame retardant mechanism

- Precise heat absorption and cooling: With an initial decomposition temperature of 225°C (peak decomposition temperature 285°C), it perfectly matches the processing temperature range of medium-to-low-temperature polymer materials such as EVA, PVC, PE, and epoxy resin. It achieves a heat absorption capacity of 1975J/g per unit mass, rapidly absorbing combustion heat during decomposition to effectively inhibit fire spread from the source;

-Dense protection of condensed phase: The decomposed γ-Al₂O₃ has excellent high temperature resistance and can form a continuous and dense ceramic protective carbon layer on the surface of the substrate, increasing the density by 60%, effectively blocking heat, and completely eliminating the risk of fire caused by droplets.

2. Bidirectional Optimization of Machining Performance

- Stable performance at high fill levels: In the EVA system with 50% filling, the tensile strength can reach 16.5MPa, the elongation at break is ≥ 380%, and the mechanical property retention rate is ≥ 92%, which is more than 30% higher than unmodified products and solves the problem of substrate brittleness caused by high filling;

- Excellent processing fluidity: with an oil absorption value as low as 17mL/100g, representing a 22% reduction compared to traditional flame-retardant ATH. It can significantly enhance the melt flow rate (MFR) of composite materials by over 45%, reduce equipment torque and energy consumption during extrusion, injection molding, and compression molding processes, minimize mold wear, and is compatible with high-speed automated production lines (screw speed ≤800rpm);

Application field

1. Rubber and plastic products field

-Soft rubber products: used for EVA foam shoe materials, PVC soft film, TPE sealing strips and other products. Adding 30% -40% can achieve UL94 V0 level flame retardancy, while retaining the softness and elasticity of the products. The elongation at break is ≥ 350%, suitable for shoe materials, toys, automotive interiors and other scenarios;

-Hard rubber products: used for PP, PE hard pipes, sheets, and home appliance shells, with an addition amount of 40% -50%, a flame retardant rating of UL94 V0, a mechanical property retention rate of ≥ 90%, and compliance with safety standards in the home appliance and building materials industries;

-Special rubber products: used for fluororubber, silicone rubber seals, cable sheaths, with an added amount of 35% -45%. They have flame retardant, oil resistant, and high and low temperature resistant properties, and are stable in environments ranging from -50 ℃ to 200 ℃. They are suitable for high-end fields such as aerospace and military.

2. In the field of wires and cables

-Low smoke and halogen-free cable material: used as insulation layer and sheath material for building wiring, rail transit cables, and new energy vehicle wiring harnesses, with an added amount of 40% -55%, meeting the GB/T 19666-2023 low smoke and halogen-free standard, vertical combustion reaching FV-0 level, smoke density level ≤ 70, no toxic gas release during combustion, ensuring personnel escape and equipment safety;

-Flame retardant modification of mining cables: used for mining rubber sheathed cables, with an addition amount of 45% -50%. The flame retardant performance meets the MT 818-2019 standard, while improving the wear resistance and aging resistance of the cable. The service life is extended by more than twice in harsh underground environments.

3. In the field of composite materials and adhesives

-FRP flame retardant modification: FRP composite material used for wind turbine blades, yacht shells, and chemical equipment shells, with an added amount of 30% -35%. The flame retardant grade reaches UL94 V0 level, while improving the corrosion resistance and mechanical strength of the product (tensile strength ≥ 85MPa), suitable for outdoor harsh environments;

-Flame retardant adhesive: used for epoxy resin adhesive and polyurethane adhesive. The ultra-fine flame retardant ATH has no particle sensation after dispersion, and the addition amount of 25% -30% can achieve efficient flame retardancy without affecting the bonding strength and flexibility of the adhesive. The shear strength is ≥ 25MPa, suitable for electronic device packaging, building structural adhesive and other scenarios.

4. Building materials field

-Fireproof coating: used for steel structure fireproof coating and decorative fireproof coating, with an addition amount of 35% -45%, can improve the flame retardant durability and fire resistance time of the coating. When the coating thickness is 20mm, the fire resistance time is ≥ 2.5h, and the formed expanded carbon layer is dense and hard, effectively protecting the steel structure from high temperature damage;

-Flame retardant board: used for glass magnesium board, calcium silicate board, flame retardant density board, with an added amount of 30% -40%. The flame retardant grade reaches GB 8624-2012 B1 level, while improving the moisture resistance and bending strength of the board (≥ 12MPa), suitable for public places such as high-rise buildings, shopping malls, hospitals, etc;

Frequently Asked Questions (FAQ)

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

A1: Core difference: ① Decomposition temperature: The initial decomposition temperature of flame-retardant aluminum hydroxide is 225 ℃, 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 flame-retardant aluminum hydroxide is ≤ 72, and the smoke suppression effect is better than that of magnesium hydroxide (SDR ≤ 85); ③ Processing adaptability: Flame retardant aluminum hydroxide has lower oil absorption value, better compatibility with resin, and less degradation of substrate mechanical properties under high filling; ④ Cost advantage: The reserve of flame-retardant aluminum hydroxide raw materials is more abundant, and the procurement cost is 15% -20% lower than that of magnesium hydroxide.

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

A2: The amount of addition should be based on the substrate type, product thickness, and target flame retardant level. Conventional reference: ① EVA cable material: 40% -55%; ② PP Home Appliance Shell: 40% -50%; ③ Epoxy resin adhesive: 25% -30%; ④ Fireproof coating: 35% -45%.

If you are looking for flame-retardant aluminum hydroxide, we will provide the lowest price cooperation, and Taixing will be your best partner!