How is the cost-effective magnesium hydroxide flame retardant "refined" into?
Polymer material is widely used in daily life, but because of its flammable, smoke and other characteristics, it is easy to become a direct fire activator, because the flame retardant treatment of polymer material is necessary, the most direct way is to add flame retardant.
Among many flame retardants, magnesium hydroxide is undoubtedly one of the best. When heated, it dissolves and releases the bound water to absorb a large amount of latent heat, reducing the surface temperature of the filled composite in the flame. And crucially, magnesium hydroxide also inhibits smoke -- more than 80 percent of fire victims are not burned to death, but suffocate from the smoke, and adding the magnesium hydroxide flame retardant greatly reduces the density of the burning smoke, reducing the risk of choking.
Since the flame-retardant effect of magnesium hydroxide is so good, the natural demand will be larger, like rubber, chemical, building materials, plastics and electronics, unsaturated polyester and paint, coatings and other fields are its big consumers. Due to the rich magnesium resources in China, with unique resource advantages, the raw material used for the extraction of magnesium hydroxide is mainly brucite, most of which are concentrated in The Northeast Dandong region.
The geographical advantage has led to the emergence of several related enterprises, such as Dandong Tianchi Flame Retardant Materials Technology Co., LTD. According to The general manager Wu of Dandong Tianti, because the raw material brucite is simple to obtain, so the local use of physical grinding for processing, generally will be directly crushed ore, after dry coarse grinding and wet ultrafine grinding, to make the required size grade of magnesium hydroxide products.
Because this process is relatively simple, it is easy to lead to uneven distribution of magnesium hydroxide product size. But surprisingly god-given magnesium hydroxide product can perfect to avoid this, asked the reason, general manager wu explains them in addition to the Japanese advanced production technology and the Japanese, German import equipment, also in view of the drawbacks of traditional craft to the corresponding improvement of equipment, developed a unique technology formula, coupled with strict management system and perfect testing instruments, It not only breaks through the simplicity of chemical method and ore method of magnesium hydroxide, but also has the advantage of high purity and high cost performance. At the same time, the entire production process almost zero emissions, in line with the green environmental protection development requirements.
Wu mentioned that in recent years, due to environmental protection policies, people's consumption concept changes and other reasons, magnesium hydroxide in thermal conductive plastics, insulation materials, wires and cables, coatings and other areas of demand has been growing.
In addition, in other products, such as talc for honeycomb ceramics and LCP, nano-scale calcium carbonate for breathable membrane, mica and other applications, Tianci company is also unique, and they will continue to work hard.
