What is γ& gamma;-Alumina? Alumina with & gamma;-type crystal form is & gamma;-alumina. & gamma;-type alumina is insoluble in water and also can liquify in strong acid or alkali service. When heated up to 1200 ℃, γ& gamma;-type alumina is completely transformed into α& alpha;-type alumina. & gamma;-type alumina is a porous material with an inner area of a number of hundred square meters per gram as well as high task as well as solid adsorption ability. Commercial products are usually anemic or pink round particles with great stress resistance.
γ& gamma;- Alumina Qualities The fragment size of γ& gamma;-stage nano-alumina is smaller than that of 20nm, with uniform particle size circulation, high pureness, excellent diffusion, high details surface, high temperature-resistant inertia as well as high activity, so it belongs to active alumina, porosity, high firmness and excellent dimensional security.
It can be extensively used in the support and toughening of all kinds of plastics, rubber, porcelains, refractories as well as various other products, specifically in improving the compactness, surface, cold as well as warm exhaustion, fracture durability, creep resistance and use resistance of polymer materials. It is very easy to disperse in solvent water; it can be uniformly dispersed in ethanol, propanol, propylene glycol, isopropanol, ethylene glycol monobutyl ether, acetone, butanone, benzene as well as xylene without including dispersant. It is commonly contributed to epoxy material, plastics, and so on What is
& gamma;-Alumina made use of for?
Coatings: porcelain film finishings, wear-resistant finishings and also plasma splashing.
Ceramics: transparent porcelains, bioceramics and alumina ceramics.
Petrochemical industry: stimulant, catalyst service provider as well as automobile exhaust filtration product.
Polishing materials: submicron/ nanometer grinding products, single crystal silicon wafer grinding, fine polishing materials.
Illumination: long afterglow phosphor basic material and also uncommon earth tricolor phosphor basic material, high stress sodium lamp transparent tube, LED light and so forth.
Electronics: incorporated circuit substrate, single crystal products and far-infrared products.
Cosmetics: cosmetic fillers.
Not natural membrane materials.
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