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Alumina filler - List of Manufacturers, Suppliers, Companies and Products

Alumina filler Product List

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Alumina-based filler "Cerashure"

Alumina-based filler "Cerashure"

Bemaite with controlled particle shape suitable as a flame retardant additive and reinforcing filler!

Kawai Lime Industry Co., Ltd.'s "Serashure" is a bauxite suitable for filler applications that has been artificially synthesized using a hydrothermal synthesis method. It is controlled to have particle shapes such as cubic, plate-like, flaky, and needle-like, as well as fine particle sizes, making it suitable as a filler for imparting functionality to plastics and rubber. 【Features】 ■ Micro-filler controlled to a single micron fine particle size ■ Shape-anisotropic filler controlled to particle shapes such as cubic, plate-like, flaky, and needle-like ■ Almost insoluble in acids and alkalis, with high chemical stability ■ Undergoes an endothermic dehydration reaction at 400-550°C, demonstrating flame retardant effects ■ Compared to alumina, it has a lower Mohs hardness (3.5-4.0) and lower specific gravity (3.0 g/cm3) ■ High dispersibility and orientation in resins, capable of imparting functions such as flame retardancy, heat resistance, reinforcement, dimensional stability, and gas barrier properties * There are also "High Thermal Conductivity Bauxite" which enhances thermal conductivity, and "Ultra-fine High Crystalline Bauxite" controlled to submicron particle sizes. For more details, please refer to the product pages for "High Thermal Conductivity Bauxite" and "Ultra-fine High Crystalline Bauxite."

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Alumina-based filler "Catalyst γ-alumina"

Alumina-based filler "Catalyst γ-alumina"

γ-alumina with high specific surface area controlled for particle size and particle size distribution for catalysts.

So far, γ-alumina has generally been aggregates of nanosized particles. Our γ-alumina is based on boehmite with controlled particle size and shape. It is possible to control the particle size (submicron to single micron), particle shape (cubic, plate-like, flaky, needle-like, etc.), and specific surface area. In addition to applications as solid acid catalysts, catalyst supports, adsorbents, and thickeners, it can also be used as a microfiller. 【Features】 ■ γ-alumina based on form-controlled boehmite ■ Control of particle size, particle shape, specific surface area, etc. is possible ■ Usable for solid acid catalysts, catalyst supports, adsorbents, thickeners, fillers, etc. *We have prepared a PDF document that describes an example of γ-alumina. If you need more detailed information, please feel free to contact us.

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Alumina-based filler "Aeroalumina"

Alumina-based filler "Aeroalumina"

Morphology-controlled α-alumina filler with pores inside the particles.

Alpha-alumina exhibits excellent properties such as high thermal conductivity and volume resistivity, but it also has issues such as high powder density (specific gravity) and high Mohs hardness. Aero-alumina is a type of alpha-alumina that has not undergone densification of crystals with pores inside, based on boehmite with controlled particle size and shape. Compared to general alpha-alumina, it features lower powder density and softness. It can be used as a thermal conductive filler, reinforcing material, abrasive, and ceramic raw material. 【Features】 ■ Alpha-alumina with pores inside the particles ■ Lower powder density than general alpha-alumina ■ Control of particle size and shape is possible ■ Suitable for thermal conductive fillers, reinforcing materials, abrasives, and ceramic raw materials *We have prepared a PDF document detailing an example of aero-alumina. If you need more detailed information, please feel free to contact us.

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Alumina-based filler "Ultra-fine High Crystalline Bemaite"

Alumina-based filler "Ultra-fine High Crystalline Bemaite"

A lineup of highly crystalline bemaite controlled at an ultra-fine primary particle size (0.1 to 0.5 μm).

Traditionally, ultra-fine bemaite had low crystallinity and a low decomposition temperature (around 300°C). Our company has developed a high-crystallinity bemaite (decomposition temperature: approximately 400°C) controlled to an ultra-fine primary particle size using a special method, and we are now able to offer it. 【Features】 ■ Sub-micro filler with primary particle size controlled to ultra-fine 0.1–0.5 μm ■ Despite being ultra-fine, it possesses high crystallinity ■ Suitable for electronic components and substrates that require lightweight, compact, flame retardant, and heat-resistant properties ■ Low Mohs hardness (3.5–4) ■ Insoluble in acids and alkalis, demonstrating high chemical stability

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Alumina-based filler "High Thermal Conductivity Bemaite"

Alumina-based filler "High Thermal Conductivity Bemaite"

We propose bauxite, which has a high thermal conductivity equivalent to α-alumina, as a new thermal conductive filler.

The conventional bauxite has a low thermal conductivity, and its properties were not sufficient for heat dissipation applications. We have developed a high thermal conductivity type of bauxite with a thermal conductivity comparable to that of α-alumina using a special method. By filling it into plastics, rubber, sheets, greases, and other materials, it can impart high heat dissipation and thermal conductivity. Control over particle size (submicron to single micron) and particle shape (cubic, plate-like, flaky, needle-like, etc.) is possible. It can be used in various applications such as thermal conductive fillers, flame retardants, flame retardant aids, reinforcing materials, and abrasives. 【Features】 ■ High thermal conductivity comparable to α-alumina ■ Control over particle size (submicron to single micron) and particle shape (cubic, plate-like, flaky, needle-like, etc.) ■ High decomposition temperature (approximately 500°C) and excellent heat resistance ■ Low Mohs hardness (3.5 to 4) and small specific gravity (3.0 g/cm³) ■ Insoluble in acids and alkalis, demonstrating high chemical stability

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