Introduction to Main Indexes of Aluminum Hydroxide
Note: The models listed in the table are our standard products. Special specifications can be customized as required. The physical and chemical analysis data is for reference only, please refer to the actual product for accuracy. The environmental protection testing indicators meet the EU RoHS standards.
Inorganic Flame Retardant Filler - α-Hydroxide Aluminum Product Introduction:
The Yongding alpha-alumina 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 of alpha-alumina flame retardants. It has unique manufacturing advantages in the production of high brightness, medium brightness, and ultra-fine alpha-alumina, particularly in terms of oil absorption rate, viscosity, particle size distribution, brightness, dispersibility, thixotropy, and modification. We design excellent alpha-alumina application solutions for customers, providing one-stop selection and personalized customization services. The product is widely used in various industries such as composite materials (BMC/SMC), electronic copper clad boards, electrical switches, cables, integrated circuits, insulators, papermaking, fire-resistant building materials and coatings, potting materials, plastic encapsulation materials, LED encapsulation materials, high-performance adhesives, artificial leather, polyurethane, polyamide, polyolefins, vinyl chloride paste, 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 and dehydration, it decomposes, forming a dense and solid protective film on the surface of combustible materials, which isolates oxygen. This effectively inhibits the polymer's temperature rise and thermal degradation. It also suppresses the production of smoke by adsorbing and absorbing heat, causing carbonization without generating combustible materials. Suitable for composite materials and plastics that are processed and formed at temperatures below 220°C and plastics processed at around 300°C.
(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.
3. Low Silicon, Low Iron, Low Sodium — Content below 0.01%, 0.006%, and less than 0.2% respectively.
4. Uniform and controllable particle size distribution.
5. Low oil absorption rate - Modern automatic control systems produce products with 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 finer the surface texture and the more pronounced the reinforcing effect. However, the viscosity is also higher during blending, so please carefully adjust the formula to balance all properties.
2. Mixed with different particle sizes, it can form a dense filling within the polymer system at the appropriate ratio, enhancing flame-retardant properties. A rational blending system can prevent the settling or floating of fillers, while also reducing the viscosity of the resin blend under equal filling volume, promoting shear dispersion.
3. Aluminum hydroxide, after ultra-fine processing, due to increased specific surface area, tends to agglomerate, has poor compatibility with polymers, and is difficult to disperse evenly, affecting the processing properties of the composite materials. Hydrophobic aluminum hydroxide has good interfacial compatibility with high polymers; the surface coating can form bonding 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. Suggest determining the addition amount through tests; samples (less than 5kg) are available free of charge.
Cautionary Notes:
Storage: This product should be stored in a cool, dry, and well-ventilated area, avoiding ground moisture and keeping away from high-temperature heat sources. Transportation: Non-hazardous, this product requires protection from water and humidity during transport, and should be handled gently to prevent packaging damage. Do not mix with other acidic or alkaline substances. Avoid exposure to air when the relative humidity exceeds 80%, and re-use after drying (to 110°C) if necessary. After use, proper sealing and moisture-proof measures should be taken; it is recommended to use the contents upon opening the packaging.
Product Packaging:
Inner plastic, outer woven film bags in kraft paper packaging, net weight per bag: 50kg, 40kg, 25kg, or in bulk ton bags. Custom packaging is also available upon customer request.
