4 major applications of powder plasma equipment plasma surface treatment powder:
1. Powder plasma equipment improves powder dispersion
Due to the surface effect of the powder, the powder is easy to agglomerate. The plasma surface treatment plasma treatment can make the surface of the powder coated or grafted, and generate repulsive force between the powders, so that the powders cannot be contacted. Prevent the generation of agglomerates and improve the powder dispersion performance.
Plasma surface of powder plasma equipment
2. Powder plasma equipment improves the dispersion in the matrix
Agglomeration greatly weakens the dispersibility of the powder in the matrix, and the dispersibility of the powder in the matrix is greatly enhanced after plasma treatment. For example, the dispersion of the dye in the matrix after NHz-plasma treatment greatly improves the smoothness of the paint.
For another example, plasma treatment can significantly improve the dispersion of powder in resin. The mass fraction measured by X-ray micro-contact photography is 5%. The photos of CaCO3 filled LDPE before and after CH plasma treatment can clearly see CH4. The dispersibility of Ca-CO3 in the resin is significantly improved by plasma treatment.
3. The powder plasma equipment improves the dispersion of powder particles and improves the densification of ceramic bodies
Because the powder particles are small, the specific surface area is large and the diffusion rate is very high. Therefore, using powder for sintering, the speed of densification is fast, and the sintering temperature can be lowered, and the powder should be controlled in size and distribution without agglomeration. Solving the powder dispersion can improve the densification of ceramics.
4. Powder plasma equipment improves interface bonding performance
In the polymer material industry and composite material fields such as plastics, rubber, adhesives, etc., inorganic mineral fillers occupies a very important position. However, the interface properties of organic polymers are different, and compatibility is poor. Direct or excessive filling often easily leads to the decrease of certain mechanical properties of the material and the shortcomings such as easy embrittlement. The surface of inorganic mineral fillers must be modified to improve it. The physical and chemical properties of the surface enhance its compatibility with the matrix, that is, organic polymers or resins, so as to improve the mechanical strength and comprehensive performance of the material.
In application, mechanical properties are more important than physical properties. After the plasma treatment of the polymerizable gas plasma surface treatment, the polymer film on the surface of the powder forms a strong chemical bond with the powder, and the compatibility of the system is greatly improved. Therefore, the plasma treatment can significantly improve the mechanical properties of the material.