Tourmaline is a silicate mineral with a complex ring structure made of sodium, magnesium, iron, aluminum, and lithium, and is characterized by boron. It has good thermoelectric and piezoelectric effects. It also releases negative ions, radiates far infrared rays, and possesses antibacterial and deodorizing functions. These properties are beneficial to both humans and the environment. Negative ion powder, derived from tourmaline, helps regulate the body’s ion balance and activate cells. It also inhibits fungal infections and enhances the body’s self-healing ability. Negative ions in the powder can absorb dust in the air and purify the air, contributing to a cleaner and healthier environment.
Tourmaline is widely used as a healthy and environmentally friendly material for releasing negative ions. It is applied in various fields, such as building materials, textiles, and environmental materials. This contributes significantly to improving the quality of human life.
However, the whiteness of tourmaline ore is very low. This limits its application in building and environmental materials. Improving its whiteness without affecting its negative ion release is therefore of great significance.
Preparation Method
A research team has developed a method to prepare high-whiteness negative ion powder. This method can convert low-whiteness tourmaline into high-whiteness, highly efficient negative ion release powder. The powder is non-radiation and increases the utilization value of tourmaline.
The preparation method includes the following steps:
(1) broyeur à boulets-grind tourmaline ore into tourmaline powder. Mix the powder with a dispersant and water in a mass ratio of 1:(0.01-0.1):(0.8-1.5). Add a grinding medium with an average particle size of 0.2 mm-0.4 mm. The mass ratio of the grinding medium to tourmaline powder is (3-10):1. Grind for 150-300 minutes at a speed of 2000-3000 rpm.
(2) Add a surface modifier to the system. The mass ratio of the surface modifier to tourmaline powder is (1-8):1. Continue grinding for 1-2 hours at a speed of 2000-3000 rpm. After the reaction is complete, a high-whiteness negative ion powder slurry is obtained. The high-whiteness negative ion powder is then obtained by drying. Test results show a whiteness of 65.63 and a negative oxygen ion release value of 779.
Conclusion
Through this preparation method, the research team solved the problem of low whiteness in tourmaline. They also ensured its negative ion release characteristics. In the future, this technology can be widely applied in health, environmental protection, construction, textiles, and other fields. Especially in building materials and environmental protection, improving the whiteness of tourmaline allows it to better integrate with other materials. This enhances the market competitiveness of products.
As an environmentally friendly material, the efficient negative ion release of tourmaline can also contribute to air purification, antibacterial effects, and haze prevention.
In summary, this research not only improves the whiteness of tourmaline while retaining its negative ion function, but also provides new technical support for its widespread use. This innovative method paves the way for the industrialization and large-scale production of tourmaline. It also opens a new direction for the development of environmentally friendly materials.
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