Silicon powder surface modification process technology and system

Silica powder is made of natural quartz ore, fused silica, etc. as raw materials, processed through multiple processes such as grinding, precision classification, and impurity removal. It has high insulation, high thermal conductivity, and high thermal stability,acid and alkali resistance, abrasion resistance, low thermal expansion coefficient, and widely used in copper clad laminate industry, epoxy molding compound industry, electrical insulation material industry and adhesive industry, etc.

The key to surface modification of micro silica powder is how to make the modifier uniformly dispersed on the surface of the particles. Silane coupling agent is a commonly used modifier for micro silica powder surface modifiers. Basically, they use a dry process method. The flow chart is as below:

Silicon powder surface modification process technology and system

Working principle of LHF series modifier:

Feed the material into the powder coating machine → drop the modification agent by pump → the material and the agent will be fully mixed together when the machine is operating at high speed; and the heat, which is generated by the high speed movement of the rotors and material, will help the agent coated on the material powder surface at the same time → finally, the finished products will be collected by the negative pressure collection system. 

Application fields :

Suitable for non-metallic mineral powders: calcium carbonate, talc, barite, wollastonite, kaolin, bentonite, dolomite, limestone, mica, sepiolite, etc.

Suitable for functional powder: magnesium hydroxide, aluminum hydroxide, aluminum oxide, titanium dioxide, white carbon black, iron oxide red, pearl mica, zinc oxide, fly ash, nano powder, etc.