Ultrafine powder is one of the essential raw materials in many industrial production processes. Its advantages over traditional ordinary powder are smaller particle size, smoother surface, easier processing, and easier dispersion. To better utilize ultrafine powders, surface coating treatment is necessary to improve their quality and performance. This article will introduce several methods for surface coating treatment of ultrafine powders.

Method 1: Physical surface coating treatment

The commonly used methods for surface coating treatment using physical methods mainly include mechanical alloying, high-energy ball milling, vapor deposition, chemical vapor deposition, and physical deposition. Among these methods, especially the physical deposition method, it is one of the most commonly used surface coating treatment methods. The physical deposition method can change the properties of ultrafine powders by forming a layer of crystalline or amorphous films at the micron and submicron levels on their surface. This method can not only improve the stability of ultrafine powder, but also improve its flowability without damaging the original properties of ultrafine powder.

Method 2: Chemical surface coating treatment

Chemical surface coating treatment is a superfine powder surface coating material prepared by chemical methods. The commonly used chemical methods for surface coating treatment include solvent deposition, co precipitation, and double decomposition. Among them, solvent deposition is a common method. The principle of this method is to place surfactants on the surface of ultrafine powder to form a uniform film, which can improve the properties of ultrafine powder, such as color, stability, and dispersibility.

Method 3: Physicochemical surface coating treatment

The physicochemical surface coating treatment mainly combines chemical and physical methods to form a new material to coat the surface of ultrafine powder. The commonly used physicochemical methods for surface coating treatment include in-situ polymerization, electrodeposition, ion implantation, and plasma thin film deposition. These methods can improve the corrosion resistance, oxidation resistance, wear resistance, and enhance the conductivity of ultrafine powders.

In summary, there are various methods for surface coating treatment of ultrafine powder, and different methods can also make the characteristics of the treated ultrafine powder different. As a high-quality supplier, SAT NANO not only provides high-quality ultrafine powders, but also provides comprehensive services to customize surface coating treatment solutions for ultrafine powders suitable for different industries. Whether you are a pharmaceutical, chemical, or electronic enterprise, Saite can provide you with professional and high-quality products and services.