

Alumina Hydrate Product Introduction:
Alumina hydrate flame retardant features non-toxicity, odorlessness, low viscosity, good dispersibility, high addition amount, high brightness, high purity, excellent flame retardant properties, and low sodium content. The company has 8 production lines for the production, research and development, and compounding of alumina hydrate flame retardant. It has unique manufacturing advantages in the production of high-brightness, medium-brightness, and ultra-fine alumina hydrate, including oil absorption rate, viscosity, particle size distribution, brightness, dispersibility, thixotropy, and modification. We design excellent alumina application solutions for customers, providing one-stop selection and personalized customization services. The products are widely used in various industries such as composite materials (BMC/SMC), electronic copper-clad boards, electrical switches, cables, integrated circuits, insulators, papermaking, building fire-resistant materials and coatings, potting materials, plastic encapsulation materials, LED encapsulation materials, high-performance adhesives, artificial leather, polyurethane, polyamide, polyolefin, chlorinated polyvinyl, epoxy resin, unsaturated polyester resin, phenolic resin, synthetic rubber, and various functional high polymer flame retardant materials. Special fillers for agate, artificial marble, optical high-purity glass, and high-purity aluminum salt fillers. The company can customize production according to customer needs, such as particle size distribution control, coating, and compound treatment.
Product Features:
High purity
(1) Excellent flame-retardant and smoke-suppressing properties – upon heating, dehydration, and decomposition, it forms a dense, solid protective film on the surface of combustible materials,隔绝oxygen, effectively inhibiting the polymer's temperature rise and thermal degradation. It absorbs and dissipates heat to suppress smoke generation, causing carbonization without producing combustible materials. Suitable for composite materials with processing temperatures below 220℃ and plastics with processing temperatures around 300℃.
(2) Excellent Insulation Properties - The fluidized bed purification process significantly reduces the content of impurities such as iron, sodium, and potassium ions.
2. High brightness - Does not interfere with product dyeing and enhances product color saturation and appearance.
Low silicon, low iron, low sodium—content below 0.01%, 0.006%, and less than 0.2%, respectively.
4. Particle size distribution is uniformly concentrated and controllable.
5. Low oil absorption rate – Products produced by modern automatic control systems have an oil absorption rate reduced by over 20% compared to traditional mechanical crushing systems.
Usage Instructions:
1. Selection should be based on the performance requirements of the product when used alone. Particle size is closely related to the properties of the composite material; the smaller the particle size, the smoother the surface and the more pronounced the reinforcement effect. However, the viscosity is also higher during blending, so please carefully adjust the formula to balance all properties.
2. Utilizing a blend of different particle sizes, a dense filling can be formed within the polymer system at the proper ratio, enhancing flame retardancy. A rational blending system can prevent the settling or floating of fillers, while also reducing the viscosity of the resin blend under equivalent filling amounts, facilitating shearing and dispersion.
3. Alumina hydrate, after ultra-fine processing, has an increased specific surface area, tends to agglomerate, exhibits poor compatibility with polymers, and is difficult to disperse evenly, affecting the processing properties of composites. Hydrophobic alumina has good interfacial compatibility with high polymers; the surface coating can form bond reactions with the functional groups of the base material resin, reduce the viscosity of the blend, eliminate interface stress concentration, and improve the mechanical properties of the composite materials. Therefore, it is recommended to use hydrophobic products.
4. Recommend determining the addition amount through trials; samples (less than 5kg) are available for free.
Important Notes:
Storage: Store in a cool, dry, and well-ventilated area, away from ground moisture and high heat sources. Transportation: Non-hazardous; protect from water and moisture during transport, handle gently to prevent damage to packaging. Do not mix with other acidic or alkaline substances. Avoid exposure to air when relative humidity exceeds 80%, and reheat (to 110℃) if necessary before use. After use, ensure a sealed and moisture-proof measure; it is recommended to use the contents immediately after unpacking.
Product Packaging:
Inner plastic, outer woven film bags with kraft paper packaging, available in net weights of 50kg, 40kg, 25kg, or in bulk ton bags. Custom packaging is also available upon customer request.































