Magnesium hydroxide coated modification machine, surface coating machine, powder drying machine

Release time:

2025-07-10 08:33

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Magnesium hydroxide, due to its high surface free energy and strong polarity as a powder, is extremely prone to agglomeration in polymeric materials, greatly limiting its performance. Among the numerous surface modification techniques for magnesium hydroxide, surface chemical coating modification is the most widely used method. This modification method relies on various modifying agents, such as surfactants, coupling agents, and super-dispersants, or a combination of multiple modifying agents. Through chemical reactions, a special coating layer is constructed on the surface of magnesium hydroxide to improve its compatibility with polymers and reduce its surface free energy.

The honeycomb mill is specifically designed for the production of ultrafine powders with stringent requirements for particle size distribution. It innovatively advocates an advanced process of first depolymerizing, then drying, and simultaneously carrying out surface modification treatment. During operation, the wind sweeping system fully disperses the magnesium hydroxide powder, allowing each particle to disperse open ， Then atomize the modifying agent, and uniformly coat it onto the surface of the magnesium hydroxide particles, forming a dense and regular monolayer nano-coating film. The coating rate can reach 99.2%, and the activation rate can reach 99.8%. It can retain the color and purity of magnesium hydroxide, laying a solid foundation for the performance of subsequent products.

After treatment with the coating modification machine, the magnesium hydroxide has a regular crystal structure, uniform particle size, significantly reduced specific surface area, and essentially eliminated surface polarity. These optimizations in microstructure directly lead to a leap in macroscopic performance. In organic polymer materials, the compatibility and dispersibility of the modified magnesium hydroxide are greatly improved, and the flame retardant effect is doubled with half the effort. Moreover, it also has the additional function of a reinforcing agent, effectively improving the mechanical strength of organic materials, making the material improved in fire safety and mechanical properties, and widely used in industries with extremely high material performance requirements, such as electronics, construction, and automobiles.

While improving product performance, the coating modification machine also brings tangible economic benefits to enterprises. From the cost perspective, the precise coating process greatly reduces the amount of modifying agent used, avoiding unnecessary waste; the efficient production process shortens the production cycle, producing more high-quality products per unit of time, and spreading fixed costs. From the product quality perspective, the modified magnesium hydroxide products have better performance and stronger stability, significantly reducing the defect rate, reducing rework and after-sales costs caused by quality problems, and improving the market competitiveness and brand credibility 。

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