Non-metallic material drying equipment, scattering equipment, drying depolymerization machine

Release time:

2024-09-21 08:47

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As a promising non-metallic material, silicon carbide has many excellent properties, such as high hardness, high strength, oxidation resistance, high temperature resistance, abrasion resistance and so on. It is widely used in refractory materials, engineering ceramics, structural materials and so on.


Due to the nano silicon carbide powder in the process of ultrafine grinding, will be constantly friction, impact, on the one hand, lead to the surface of the powder accumulated a large number of positive and negative charges, and these charged particles are extremely unstable, in order to stabilize, they will attract each other and then together. On the other hand, the micro-powder will absorb a large amount of mechanical energy and heat energy, so that the surface of the micro-powder has a very high surface energy, these micro-powder in order to tend to a stable state, reduce its surface energy, will continue to close to each other and reach a stable state, and then produce agglomeration. The dispersion and agglomeration characteristics of nano silicon carbide powder are closely related to the above surface state and its own surface properties..
In order to obtain silicon carbide slurry with high solid content and low viscosity, it is necessary to treat or modify the surface of the powder, which can not only reduce or eliminate the agglomeration phenomenon between particles, improve the dispersion performance of the powder, but also prepare the slurry with high solid content and low viscosity. It can be said that surface modification is an effective way to obtain high solid content and low viscosity ceramic slurry.
The surface modification of silicon carbide powder can improve the dispersion, stability and polymer compatibility of ultrafine powder particles in liquid phase, improve its surface activity, and make it meet the requirements of different applications.Honeycomb mill is a commonly used vertical modification machine, honeycomb millThe biggest feature is that it integrates the four functions of deep drying, depolymerization and dispersion, compound modification and spheroidization. It is a mechanical force chemical continuous powder compound modification machine, which can simultaneously realize grinding, drying, sorting, and powder Surface chemical treatment, but also has the characteristics of compact structure, small size, simple operation, stable operation, low labor intensity, low noise, etc. It is suitable for dry powder, wet ground filter cake and slurry, etc. The coverage rate is usually up99.2%, the activation rate was 99.8%.

reference source: powder technology network. If there is infringement please contact delete!

 

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