Overview of sericite
Sericite is a type of mica. It is a silicate mineral with a layered structure and a natural fine-grained muscovite. It has a strong silky luster and is transparent to translucent. Sericite has an aspect ratio greater than 80, is highly elastic and bendable, and it has efficient shielding and scattering capabilities for visible light. Meanwhile, it boasts good insulation and heat resistance (able to withstand temperatures above 600℃).
In the field of deep processing of non-metallic minerals, sericite, with its unique properties, has become an indispensable functional filler in high-value-added industries such as coatings, plastics, rubber, and cosmetics. So, how to convert natural sericite ore into refined products that meet the needs of high-end applications? Air classifier, with its efficient and precise separation technology, serves as the bridge converting sericite from raw ore into a high-end functional filler. It not only unlocks sericite’s high added value, but also drives the coatings, cosmetics, and related industries towards more refined and higher-quality products.
2. Application value of air classifier
Air classifier plays a crucial role in sericite processing. It is mainly used to precisely control the particle size distribution of sericite powder, so as to meet the requirements for product fineness, uniformity and purity in different application fields.
2.1. Core advantages
Air classifier adopts a unique vertical turbine classification principle and optimized flow field design. Materials are classified under the combined action of strong centrifugal force and precise guiding airflow. The entire process involves no mechanical impact or high-speed collision, thus avoiding the shear damage to the fragile flake structure of sericite caused by traditional mechanical grinding and classification to the greatest extent.
2.2. Main roles in different industries
① In the coating industry
Sericite powder is required to have a narrow and uniform particle size distribution to ensure the smoothness and gloss of the coating after addition. By setting specific wind speed and classifying wheel rotation speeds, air classifier can screen out narrow-distribution powder with 325-1250 meshes. Its flake structure can be arranged directionally in the coating, which not only enhances the hiding power but also retains the silky luster, improving the decorativeness and protective performance of the coating.
② In the cosmetics field
Strict requirements are imposed on the purity and fineness of powders. The non-contact classification method of air classifier can reduce impurity contamination caused by mechanical wear. Meanwhile, they can accurately separate ultra-fine powders of 5000 mesh and above, which feature uniform particle size and smooth hand feel. These ultra-fine powders can perfectly integrate with skincare bases, not only exerting the pearlescent effect of sericite but also avoiding a grainy texture, thus meeting the skin feel requirements of high-end color cosmetics and face creams.
③ In the plastic and rubber industries
Sericite, as a functional filler, needs to have both reinforcing properties and dispersibility. Air classifier can produce 800-2000 mesh powder in a targeted manner. The aspect ratio of the powder is retained to the greatest extent during the classification process. When added to polymer materials, it can disperse evenly, which not only improves the mechanical properties of the products but also maintains processing fluidity.
3. Choose professionalism, choose Epic Powder
Qingdao Epic Powder Machinery Co., Ltd. is a professional manufacturer specializing in the production of powder processing equipment. For many years, it has been dedicated to the research and development of fine powder processing technologies, and it has developed a series of powder processing equipment, including powder grinding equipment, classification equipment, modification equipment and related auxiliary equipment.
In terms of powder classification, Epic Powder has accumulated profound technical heritage and rich practical experience. Under the technical guidance of German consultants, it has launched 5 types of air classifiers: HTS, ITC, CTC, MBS and TDC, which are respectively suitable for different materials and particle size requirements in different industries. Over the years, Epic Powder has always adhered to the principles of high quality, precision processing and stable production. We provide reliable equipment for powder processing enterprises in various industries, as well as a series of comprehensive services, ranging from pre-sales equipment selection and proposal design to after-sales installation, commissioning and operation guidance, enabling enterprises to feel professionalism and peace of mind throughout the entire process.
If you are purchasing air classifier, or other powder processing equipment, or have any questions about related equipment, please contact Epic Powder. Our professional team will provide professional answers based on your specific needs.
Let us work together to promote the refined processing of powder materials such as sericite, and help your enterprise achieve greater breakthroughs and development in the market. We look forward to your inquiry and will be dedicated to serving you.
