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Silicones in Plastic Metallized Products
Time：
2023-11-20
Plastic surface metallization technology can be roughly divided into two categories: dry and wet. In addition, there are metal powder spraying, metal-plastic coating and other technologies. Dry method can be divided into vacuum distillation method, cold sputtering method, ion plating method and hot embossing method, their principle is to make the evaporated metal atomization or ionization in a vacuum, deposited on the surface of the plastic to form a metal film. Wet method generally refers to electroplating, mostly chemical plating and electroplating and plating, the process is roughly: a mixture of chromic acid and sulfuric acid corrosion of plastics to form an uneven surface, and then catalyzed, immersed in an aqueous solution containing metal salts, reducing agents, complexes, in the role of the reducing agent, the metal ions are also far from the deposition of the surface of the plastic, the formation of a conductive film, and then plating, the formation of the desired metal layer.
As the organosilicon glass resin can be firmly combined with the plastic metal surface to form a layer of hard, transparent, heat-resistant, abrasion-resistant, scratch-resistant, solvent-resistant, water-resistant and not easily oxidized coatings, so it is now widely used in a variety of plating plastic products.
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