Flame retardant powder materials play a key role in many fields today, such as electronic appliances, construction, automotive and other industries, and they are of great significance to ensure the fire safety of products. However, in the processing process, flame retardant powder materials are faced with many difficult problems, on the one hand, in order to achieve the ideal flame retardant effect, often need a higher filling amount. On the other hand, the compatibility between flame retardant powders and the matrix material is poor. This leads to the phenomenon of powder agglomeration inside the material after processing and molding, which makes the mechanical properties of the product uneven and the appearance quality unsatisfactory, which seriously restricts the wide application of flame retardant powder materials.
The honeycomb mill has brought a qualitative leap in the flame retardant performance of flame retardant powder. Through precise coating, the honeycomb mill forms a smooth coating layer on the surface of the powder particles, which reduces the friction and adsorption force between the particles, significantly improves the fluidity of the powder, and allows it to begin to play a flame retardant role at a lower temperature, forming a more stable and dense carbon layer, effectively blocking the transfer of heat and oxygen, thereby improving the flame retardant efficiency. Taking magnesium hydroxide as an example, when it is not coated, it only begins to decompose and absorb heat at a higher temperature and release water vapor to flame retardant, and the effect is limited. After the coating modification machine treatment, after coating a layer of silicone material on its surface, the decomposition temperature of magnesium hydroxide is reduced, the flame retardant substance is released in advance, and the carbon layer formed by the silicone further enhances the barrier effect. The amount of flame retardant powder is greatly reduced, and the comprehensive properties of the material are optimized while reducing the cost.
At the same time, this coating prevents the powder from reagglomerating during storage and transportation. The subsequent processing process is smoother, the production efficiency is greatly improved, and the scrap rate is also significantly reduced, which saves a lot of costs for the enterprise.
Honeycomb mill is a modification machine specially developed for the production of ultra-fine powder with strict requirements for particle size and size distribution, integrating four functions of deep drying, depolymerization and dispersion, composite modification and powder spheroidization, the coating rate can usually reach 99.2%, and the activation rate is as high as 99.8%, whether it is to modify flame retardant powders such as aluminum hydroxide, or to apply to the coating of graphite, the anode material of lithium batteries。
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