Description
Aluminum Hydroxide (Al(OH)₃) Nanopowder/Nanoparticles – High Purity: 99.9+%, Size: 5–20 nm, Hydrophilic
Product Overview
Aluminum Hydroxide (Al(OH)₃) Nanopowder is a high-purity, hydrophilic nanomaterial with ultra-fine particle size ranging from 5 to 20 nm. Characterized by its extremely high specific surface area (>640 m²/g), it offers excellent dispersion in aqueous and polymer matrices. This nanomaterial is highly regarded for its thermal decomposition properties, water release behavior, and flame retardant performance. It is commonly used in polymer systems, flame retardants, smoke suppressants, and even biomedical formulations such as antacids.
Technical Properties
Property | Value |
---|---|
Purity (%) | 99.95 |
Average Particle Size | 5 – 20 nm |
Color | White |
Specific Surface Area | >640 m²/g |
Surface Character | Hydrophilic |
Chemical Formula | Al(OH)₃ |
Applications
-
Flame Retardant Systems:
Aluminum hydroxide decomposes endothermically around 180°C, releasing water vapor and absorbing heat. This makes it ideal as a flame retardant and smoke suppressant in various polymers, including thermoplastics, elastomers, and thermosetting resins. -
Polymer Additive:
Serves as a filler and reinforcing additive in plastic and rubber composites, providing thermal stability and non-toxicity compared to halogenated flame retardants. -
Medical and Pharmaceutical Uses:
Widely used in antacid formulations. The nanoparticles react with excess hydrochloric acid in the stomach, neutralizing it to relieve heartburn and acid indigestion. -
Catalyst Support and Ceramics:
Acts as a precursor for the production of activated alumina and aluminum-based catalysts. Also used in fine ceramics due to its purity and uniform particle distribution. -
Coatings and Surface Treatments:
Integrated into coatings for fire resistance and as a rheology modifier in waterborne systems.