Alumina compound modification machine, grinding machine, crusher, coating machine

Release time:

2024-10-09 09:44

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Ultrafine grinding, modification and coating of alumina is an important technology in the field of material processing, which is of great significance to improve the performance and application range of alumina materials..

1. alumina ultrafine grinding

Ultrafine grinding of alumina is mainly carried out by various ultrafineGrindingmachines, such as ball mills, high-energy ball mills, planetary mills, tower mills andVertical grinding machine, etc.. among them,vertical grinding machineBecause of its wide range of applications and high efficiency and favored. In the ultrafine grinding process, the choice of equipment and the control of operating parameters have an important influence on the particle size and distribution of the product. For example, using"Cell mill" for ultra-fine grinding, can achieve micro-nano particle size, very suitable for the preparation of high-purity ultrafine alumina.

2. alumina modification

The modification of alumina mainly includes two methods: surface activation treatment and surface coating:

surface activation treatment: Through physical or chemical methods, such as mechanical force chemical modification, activation machine, etc., the agglomeration between alumina particles is reduced, and the interfacial compatibility between alumina powder and polymer matrix is improved. This method can improve the dispersion and filling uniformity of alumina in the polymer matrix, so as to obtain composite materials with excellent performance.

surface coating: Use specific surface modifiers, such as sixteen. Alkyl trimethoxysilane, aluminum oxide surface coating treatment. Such a coating layer can improve the dispersibility of alumina particles, reduce agglomeration and dispersion phenomenon between particles, and improve the compatibility of alumina with other substances. The alumina thermal conductive powder modified by this method can improve its dispersion and filling uniformity in the polymer matrix, so as to produce a polymer composite material with more excellent performance.

3Alumina coated

Alumina coating is an important form of surface modification, the purpose of which is to form a uniform coating layer on the surface of alumina particles to improve their performance. The selection and preparation process of the coating layer have an important influence on the coating effect.

In the process of alumina modification and coating, professional equipment such as honeycomb mill plays an important role. As a professional modification machine, honeycomb mill has excellent operational application performance and technical advantages.:The dispersion of powder and surface modifier is good, and the surface of the particles is evenly coated.Honeycomb millContinuous operation of large production capacity, suitable for all scales of industrial production;High utilization rate of modified reagents, small dosage, high powder coating rate and activation index, low energy consumption;The equipment has both modification and scattering functions, suitable for materials of various fineness;Powder and pharmaceutical high-speed gas-solid vortex mixing operation, high modification efficiency, basically do not destroy the original particle shape of the powder.;Material negative pressure operation, good sealing, no dust leakage, basically no pollution, good operating environment, low labor intensity;Ultrafine grinding, modification and coating of alumina are important technologies in the field of material processing, and alumina materials with excellent performance and wide application can be prepared by reasonable selection of equipment, control of operating parameters and optimization of coating process.

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