A plastic surface coating treatment process

Abstract

The invention discloses a plastic surface film-coating processing technology. The plastic surface film-coating processing technology sequentially comprises the following steps of providing a basic body and conducting surface decontamination treatment on the basic body, spraying priming paint, adopting priming paint free of hydrophilic groups to form a priming paint layer on the surface of the basic body, conducting ionization treatment on the priming paint layer, performing vacuum plating, plating a vacuum coating layer on the surface of the priming paint layer, spraying intermediate paint, forming an intermediate paint layer on the vacuum coating layer, spraying finishing paint, and forming a finishing paint layer on the intermediate paint layer. According to the plastic surface film-coating processing technology, the ionization treatment is conducted on the priming paint before film coating, plasma produced during ionization impacts the surface of the priming paint, the priming paint roughness and surface energy are improved, the bonding force between the priming paint and a plating material is increased, and the coating layer is good in adhesive force. In addition, the priming paint is free of hydrophilic groups, so that the ration rate of the hydrophilic groups and water in a high-humidity environment is reduced, the water corrosion resistant property of the priming paint is improved, and the hydrolysis ageing and condensed water testing requirements are met.

Description

technical field [0001] The invention relates to a plastic surface treatment method, in particular to a plastic surface coating treatment process. Background technique [0002] The casings of existing electronic products and automotive interior parts are often coated with a metal layer or a metal oxide layer to make the product have a metallic texture, thereby attracting consumers' attention. The metal layer is usually formed by non-conductive plating, because the metal layer is non-conductive, thereby preventing it from interfering with signals. The non-conductive metal layer or metal oxide layer is usually transparent, and after it is formed on the shell, together with the base material of the shell or other paint layers formed on the shell, the shell presents a colored metallic Textured look. [0003] In order to obtain metal and colorful effects, current electronic products and automotive interior parts are mostly realized by electroplating, spraying and other processes...

AI Technical Summary

Problems solved by technology

So much wastewater not only wastes water resources, but also seriously pollutes the natural ecological environment of human beings. At the same time, the above-mentioned water electroplating process has many production processes and occupies a large area. Therefore, it is urgent to improve or replace the existing electroplating process.