Application of High Purity Alumina in Thermally Conductive Composite Materials

With the continuous advancement of science and technology, the rapid development of electronics, aerospace and aviation, especially communication technology, electronic components are constantly developing from discrete components to high-power, integration and modularization, so more heat will inevitably be generated during operation. At the same time, due to the more complicated use occasions and working conditions, the requirements for the thermal conductivity of the materials are getting higher and higher. Although traditional metal heat conduction has high thermal conductivity, it has its fatal shortcoming, that is, poor insulation. Polymer composite materials can overcome the above shortcomings and are widely used in various industrial heat conduction occasions.

Thermally conductive composite materials are prepared by adding high thermal conductivity fillers to organic and polymer materials (body thermal conductive materials). Because organic polymer materials have low thermal conductivity and it is very difficult to improve them, it is therefore difficult to choose high thermal conductivity fillers for organic polymer materials. Filling to prepare composite thermal conductive material. Alumina is a commonly used filler for composite thermally conductive materials, mainly because alumina has higher thermal conductivity, better insulation properties, and stable physical and chemical properties.

So what are the factors that affect the thermal conductivity of thermally conductive composites? ①Performance of the filler itself: true density, morphology, etc.; ②Fusibility: specific surface area.

Puyang Tanki New Materials Co., Ltd. adopts the alkoxide hydrolysis method to produce high-purity alumina with a purity of over 99.9%, small specific surface area, high true density, high alpha phase content, and stable chemical properties. The particle size, particle size distribution, And purity adjustment for the preparation of thermally conductive composite materials

Overview of thermally conductive alumina Al2O3

Thermally conductive alumina is a white powder crystal formed under high temperature conditions. There are many crystalline powders of alumina, but the alumina used for heat conduction includes spherical alumina, spherical alumina, composite alumina, etc. The thermally conductive alumina must have a narrow particle size distribution, good particle size stability, and thermal conductivity K High value, high filling rate after coupling modification. It is widely used in various products such as silica gel, potting glue, epoxy resin, plastic, rubber and so on. Thermal conductivity, thermal conductivity plastics, silica gel, heat dissipation ceramics, etc.

It has high filling properties, narrow particle size distribution, reasonable coupling modification, high-concentration filling of polymer materials, and low viscosity and good fluidity mixtures without affecting vulcanization.

The thermal conductivity is high, because it can be filled with a high concentration, and a relatively complete thermal conductivity chain can be formed. Compared with other metal oxides, a mixture of high thermal conductivity and good heat dissipation can be obtained.

High purity, due to the high purity of the product, the product exists in the form of a covalent compound, and the content of the particle state magazine is small, so the product has good electrical properties.

Thermally conductive alumina Al2O3 application

Widely used in all kinds of silica gel, potting glue, epoxy resin, plastic, rubber thermal conductivity, thermal conductivity plastic, silica gel, heat dissipation ceramics, etc.

Most of the alumina produced is used to form aluminum metal. Oxygen usually reacts with metallic aluminum to catalyze corrosion. However, when combined with oxygen to form alumina, it forms a protective coating and prevents further oxidation. This increases the strength and makes the material less susceptible to deterioration. Alumina is mainly used as analytical reagents, dehydration of organic solvents, adsorbents, organic reaction catalysts, abrasives, polishing agents, raw materials for aluminum smelting and refractory materials.

Industries that use alumina include

Medical industry

Due to the hardness, biological inertness and chemical properties of alumina, it is used in hip replacement surgical prostheses, bionic implants, artificial eye substitutes, tissue reinforcement materials, crowns, abutments, bridges and other dental implants Things. The material of choice for bearings. It is also used in laboratory equipment and tools such as crucibles, furnaces and other laboratory equipment.

Military and protective equipment

The strength and lightweight properties of alumina help to strengthen body armor, such as breastplates and body armor for cars and airplanes, which is its largest market. Alumina is also used to synthesize sapphire bulletproof windows and bulletproof systems.

Electrical and electronic industry

Alumina's high melting point and high boiling point and excellent heat resistance make it an ideal material for high-temperature furnace insulators and electrical insulators. Alumina film is also an important part of the microchip industry. Some of its other uses include spark plug insulators, micro-electric substrates, and insulated heat sinks.

Thermally conductive alumina price

The price of thermally conductive alumina Al2O3 powder will vary randomly with the production cost, transportation cost, international situation, exchange rate and market supply and demand. Tanki New Materials Co., Ltd. aims to help all industries and chemical wholesalers pass Provide a full set of customized services. If you are looking for high-quality, low-cost nano-materials and chemical thermally conductive alumina Al2O3 powder, please feel free to send an inquiry to obtain the latest price Conductive aluminum Al2O3 powder.

Thermally Conductive Alumina Supplier

As a global supplier of thermally conductive alumina Al2O3 powder, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including boron carbide, aluminum carbide, titanium carbide, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.