Quartz powder coating modification machine, mechanical force modification, surface coating machine

Release time:

2024-09-12 09:24

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The important component of (quartz) is SiO2, which is one of the rich mineral resources on the earth. Due to its stable physical and chemical properties, non-toxic, odorless, non-polluting, strong acid resistance, high temperature resistance, high humidity resistance, good light transmission, radiation resistance, low expansion, low stress and other properties, it is in plastics, rubber, Paint coatings, electrical insulation packaging materials and other fields are widely used as fillers to improve the performance of composite materials and reduce costs.

Due to the hydrophilicity of the surface of quartz powder, it is difficult to be compatible with organic polymer materials, so it is necessary to modify its surface to change its surface properties from hydrophilic to hydrophobic, so as to improve the surface wettability of quartz powder particles and make the powder particles more easily dispersed in organic compounds.

At present, the surface modification technology of quartz powder is more and more demanding, which improves the modification effect and reduces the cost. And in different fields of application, the purity, particle size, whiteness and modified effect of quartz powder have different requirements. Generally speaking, the finer the particles of quartz powder, the larger the specific surface area, the more surface active hydroxyl groups, the easier the chemical reaction, and the better the effect after modification.

In industrial production, most of them adopt mechanical dry modification,Through professional modification machine"Honeycomb mill" for processing,Honeycomb mill is a special equipment for the modification and production of functional materials. It can simultaneously realize grinding, drying, sorting, and surface chemical treatment with powder, and at the same time dry and depolymerize wet grinding filter cake and slurry.ByInbreak upat the same time spray into the configured modifier, and in.break upTemporary active points and high temperatures are generated in the process,In order to fully cover the material, complete the modification process. Usually the covering rate of honeycomb mill can reach99.2%, the activation rate was 99.8%.

For different application fields, the requirements of modified quartz powder are different. If it is applied to plastic film, the particle size of quartz powder is required to be high, the particle size is too large, the film cannot be blown, and the mechanical properties of the film will be greatly reduced. The modified agent is different, the filled polymer will be different, due to the different chemical group structure compatibility degree difference is bigger. For example, quartz powder modified by coupling agents with alkenyl and chloroalkyl groups is filled in large quantities.In PE, after being modified by a coupling agent with a polysulfide hydrocarbon group, it is filled in a large amount of rubber. With the development of science and technology, the modification technology of quartz powder will become more industrial, simpler and more efficient. The multi-function of the modifier will be enhanced, the scope of application will be wider, the cost will be lower, and the modification effect will be better.

Due to the characteristics of quartz powder, the application value in various industries is extremely high, and it will be better developed in the future in the progress of science and technology and social life. With the addition of social needs, the progress of technology. The particle size of quartz powder will be fine and spherical. The preparation technology of ultrafine quartz powder will be more reasonable and economical, and will greatly improve the application value of quartz powder itself. With the continuous improvement of production equipment, high-end modification technology will become increasingly industrialized, which will greatly broaden its application areas.

Reference source: Baidu Library. If there is infringement please contact delete!

 

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