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Flaky Alumina Powder P15 α-Al2O3

High-quality flaky α-Al2Opowder with regular morphology, uniform size, larger diameter-thickness proportion and excellent dispersibility in water and free from agglomeration and staggered growth was obtained on the basis of molten salt synthesis method. The effects of experiment parameter on the particle size and morphology of flaky alumina powder were studied. The mechanism of morphology control was discussed.

Category

Flaky alumina powder is a functional fine powder material with excellent performance, which belongs to α-Al2O3. It has obvious scaly structure characteristics and a large diameter-thickness ratio. At present, the radial size of flaky alumina grains is generally 5-50 μm, and the thickness is generally between 100-500 nm. The finely-developed particles also exhibit regular hexagonal morphology. The diameter-to-thickness ratio of the flake alumina fine powder synthesized by the artificial method is adjustable, and has the advantages of high purity, smooth and smooth surface, and good dispersibility in water. The particle size of industrial-grade flaky alumina powder can reach micron size, and the thickness reaches nanometer or near nanometer scale. This not only makes it have significant light reflection ability and shielding effect, but also makes it reflect good surface activity and superior adhesion. It has been widely used in coatings, cosmetics, polishing powders, automotive finishes, toughened ceramics, etc. field. At the same time, because its price is dozens of times that of metallurgical grade alumina, the flake alumina preparation process has great research significance.

Flaky alumina, for cosmetics or industrial use, are substitute for Mica (costly due to removal of heavy metal) and TiO2 (prohibited as a cancer-causing agent), and a new product expanding its use.

Alumina displays various properties depending on the shape of the particle.
Sphere-shaped particles have excellent heat-radiating characteristics with high packing density,
whereas flake type particles have high reflection of light from the surface.
The raw material department continues its various research in processing alumina particles.

New product expanding its application as a substitute for Mica and TiO2
Purity : 99.6%
Particle size : 10㎛, 20㎛, 40㎛ (User-spec)

PRODUCT NAME:Flake alumina
HS:28182000
CHEMICAL FORMULA:α-AL2O3
CAS:1344-28-1
PRODUCT FEATURE:Flake alumina made by alumina powder、special mineralizer,crystal shape control at high temperature,special treatment and strict particle classification. It is a new special alumina,hexagonal flake structure,large diameter-thickness ratio.
APPLICATIONS:thermal conductive filler、ceramic flexibilizer、pearlescent pigment

 

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