What is γ& gamma;-Alumina? Alumina with & gamma;-kind crystal kind is & gamma;-alumina. & gamma;-kind alumina is insoluble in water as well as can liquify in strong acid or alkali service. When heated up to 1200 ℃, γ& gamma;-kind alumina is totally changed right into α& alpha;-kind alumina. & gamma;-type alumina is a permeable material with an internal surface area of numerous hundred square meters per gram and high activity and strong adsorption capability. Commercial items are commonly colorless or pink cylindrical particles with good pressure resistance.
γ& gamma;- Alumina Properties The fragment dimension of γ& gamma;-phase nano-alumina is smaller sized than that of 20nm, with consistent fragment dimension circulation, high purity, outstanding dispersion, high particular surface, high temperature-resistant inertia and high task, so it comes from active alumina, porosity, high solidity and also great dimensional stability.
It can be widely used in the reinforcement and also toughening of all sort of plastics, rubber, porcelains, refractories as well as other items, particularly in boosting the compactness, finish, cold and warm fatigue, crack durability, creep resistance and use resistance of polymer products. It is simple to spread in solvent water; it can be evenly dispersed in ethanol, propanol, propylene glycol, isopropanol, ethylene glycol monobutyl ether, acetone, butanone, benzene as well as xylene without including dispersant. It is often added to epoxy resin, plastics, and so on What is
& gamma;-Alumina used for?
Coatings: porcelain movie finishings, wear-resistant coatings and also plasma spraying.
Ceramics: clear ceramics, bioceramics as well as alumina porcelains.
Petrochemical industry: catalyst, driver service provider and car exhaust purification product.
Polishing products: submicron/ nanometer grinding products, solitary crystal silicon wafer grinding, great polishing products.
Lights: lengthy afterglow phosphor resources and also rare planet tricolor phosphor raw material, high pressure sodium light transparent tube, LED lamp and so forth.
Electronic devices: integrated circuit substratum, solitary crystal products and far-infrared products.
Cosmetics: cosmetic fillers.
Inorganic membrane products.
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