Processing method for preventing metal layer on surface of plastic product from falling off

Abstract

The invention relates to a processing method for preventing a metal layer on the surface of a plastic product from falling off, belongs to the technical field of plastic products, and in particular relates to a processing method of preventing the metal layer on the surface of the plastic product from falling off. The method comprises the following steps: annealing the plastic product; oiling the annealed plastic product; removing electricity and dust of the deoiled plastic product; treating the surface of the plastic product treated in the step 3, wherein the surface smoothness is 1-5 mm; coating the surface of the plastic product treated in the step 4 with a mixture of bisphenol A epoxy resin and a curing agent to form a coating layer; thermally spraying a metal wire to the surface of thecoating layer of the plastic product treated in the step 5 to form a metal coating; and drying the plastic product treated in the step 6. After treatment, the surface performance, for example, wear resistance, heat resistance, weather resistance, corrosion resistance and the like, of the plastic product is improved greatly.

Description

technical field [0001] The present invention relates to the technical field of plastic products, in particular to a method for surface processing of plastic products. Background technique [0002] Plastic is a class of plastic synthetic polymer materials. Together with synthetic rubber and synthetic fibers, it forms the three major synthetic materials that are indispensable in today's daily life. Specifically, plastic is a material with natural or synthetic resin as the main component, adding various additives, which can be molded into a certain shape under certain temperature and pressure conditions, and maintains the same shape at room temperature. The plastic products industry is the pillar industry of my country's light industry. At present, my country's plastic products industry is facing opportunities for development, but it will also encounter many challenges. This needs to be led by the market and enterprises, and the government is providing policy guidance to move...

AI Technical Summary

Problems solved by technology

However, these methods all have the disadvantage of insufficient bonding force between the metal layer and the substrate, because the bonding force between the plastic and its surface covering metal layer is very weak, and the bonding strength with the metal covering layer is low. It is easy to peel off, which affects the use effect and seriously restricts its wide use