Composite coating of plastic electroplating-electroless plating

Composite coating of plastic electroplating-electroless plating
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Composite coatings, or dispersed coatings as some sources say, have now occupied a place in the electroplating processing industry after decades of development. Among them, the most used diamond composite coating has been widely used in tools such as drills, knives, cutting or abrasive tools. In addition to silicon carbide, composite coating processes such as silicon dioxide, aluminum oxide, and silicon carbide have been used in practice. In addition, anti-friction coatings, such as molybdenum disulfide composite coatings, also have their applications. Nowadays, the more popular composite coatings of nanomaterials are being developed by many research institutions, and some of them have already been put into use by others.
However, the electroplating composite coating process not only has the problem of how to disperse particles in the plating solution and coating, but also has the problem of the ability of the coating itself to disperse on the product surface. For products with complex shapes, the dispersibility of the coating is a big problem, not to mention the dispersibility of the composite coating. At this time, the advantages of electroless plating were highlighted. One of the greatest advantages of electroless plating is that the coating has very good dispersion properties. All parts immersed in the plating solution can be plated with a coating of basically the same thickness. In order to improve the dispersion ability of the composite coating, it is a natural choice to use dispersed particles to obtain an electroless composite coating in chemical plating.
For non-metallic plating, the possibility of applying chemical composite coatings is higher than that of applying electroplating composite coatings. This is because when plating an electroless composite coating on top of the electroless coating, its affinity and dispersion ability will be better than electroplating.
Chemical composite plating was developed as early as the 1970s. After so many years of development, chemical composite plating has some mature processes. In terms of the dispersion ability of the plating layer and the dispersion of particles, it has better properties than electroplating.