Silica ball mill, modified machine, shaper, spheroidized machine

Release time:

2024-09-27 09:15

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Silica, fumed silica, is a high purity, amorphous, white powderat the endinorganic nanomaterials. With its excellent physical and chemical properties, such as high specific surface area, high surface activity, excellent reinforcement and thickening, silica has been widely used in rubber, plastics, coatings, inks, adhesives and cosmetics. However, with the continuous development of industrial technology and the increasing diversification of market demand, the performance of traditional silica in some specific applications has been difficult to meet the requirements. Therefore, the silica modification technology came into being, aiming at surface modification or structural regulation of silica by physical, chemical or biological means to improve its dispersion, enhance interface compatibility, enhance functionality, etc., so as to broaden its application fields and improve product performance..

surface coating modification：Coating one or more layers of functional substances on the surface of silica by physical adsorption or chemical reaction(such as silane coupling agents, organic polymers, metal oxides, etc.) to change its surface properties. graft modification：By chemical methods such as free radical polymerization and polycondensation reaction, functional monomers are grafted onto the surface of silica to form a graft layer with specific functions. chemical modification：Chemical methods such as acid-base treatment and redox reaction were used to treat the surface of silica to change its surface charge properties and increase the surface hydroxyl content, thereby improving its reactivity and functionality. physical modification：The silica was dispersed and refined by physical means such as ball milling and ultrasonic treatment to improve its particle morphology and dispersibility.

Commonly used in industrial mass productionMechanical force such as ball milling and grindingEquipment improvementThe surface of the talc particles is activated during the crushing process, and the surface modification is realized by chemical reaction with the added modifier.Honeycomb mill as continuousPowder surface modification machine,It is specifically designed for the production of ultrafine powders with strict requirements for particle size distribution.Equipment,Advocate first depolymerization and then drying, and synchronous surface coating treatment. Powder modification coating rate can reach99.2%, activation rate of 99.8%.

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