What is nano-alumina
Chinese name: nano alumina
Aluminiumoxide, nanometer
Nanometer aluminum oxide
CASRN. : 1344-28-1
Molecular formula: Al2O3
Molecular weight: 101.96
χ、β、η and γ type alumina, which is characterized by porosity, high dispersion and high activity.
κ、δ、θtype alumina; Alpha-al2o3, which is lower than the surface, has high-temperature resistance inertia, but is not active alumina and has little catalytic activity; -Al2O3 and -Al2O3 are larger than the surface, high porosity, strong heat resistance, good molding, with a strong surface acidity and a certain surface alkalinity, are widely used as catalysts and catalyst support and other new green chemical materials. The nanoparticle alumina is white fluffy powder with -Al2O3 crystal. The particle size is 20nm; Specific surface area ≥230m2/g. Uniform particle size distribution, high purity, excellent dispersion, it is higher than the surface, high temperature resistance inert, high activity, belongs to the activated alumina; Porous; High hardness, good dimensional stability, can be widely used in various plastics, rubber, ceramics, refractories and other products to strengthen and toughen, especially to improve the ceramic compactness, smoothness, cold and hot fatigue, fracture toughness, creep resistance and macromolecule material products wear resistance is particularly significant. Excellent dispersion in solvent water; Solvent ethanol, propanol, propanediol, isopropyl alcohol, ethylene glycol monobutyl ether, acetone, butanone, benzene, xylene, do not need to add dispersant, stirring can be fully dispersed evenly. In epoxy resin, plastic, etc., excellent addition to use.
The compressive strength is 150 at 1100℃
Crystal phase and boundary are good
Application Scope:
Transparent ceramics: high pressure sodium lamp tube, EP-ROM window.
Cosmetic fillers.
Single crystal, ruby, sapphire, white gem, yttrium aluminum garnet.
High strength nano alumina ceramics, C substrate, packaging materials, cutting tools, high purity crucible, wound bobbin, bombardment target, furnace tube.
Precision polishing materials, glass products, metal products, semiconductor materials, plastics, magnetic tape, grinding tape.
Coating, rubber, plastic wear - resistant reinforced materials, advanced water - resistant materials.
Vapor deposition materials, fluorescent materials, special glass, composite materials and resin materials.
Catalyst, catalytic carrier, analytical reagent.
The leading edge of a space plane's wing.
Usage:
The recommended dosage is 1 ~ 5%, and the user should decide the best dosage according to the test of different systems.
Preparation: High temperature and high pressure grinding method.
