Treatment method allowing plastic surface to have high metal texture

Abstract

The invention discloses a treatment method allowing a plastic surface to have high metal texture. The treatment method comprises the steps of ion bombardment: putting a clean plastic product in a vacuum evaporation coating chamber, performing the ion bombardment on the surface of the plastic product as follows: vacuumizing the vacuum evaporation coating chamber to allow a vacuum degree in the vacuum evaporation coating chamber to be 2.0*10<-2>-3.0*10<-2>Pa, charging argon, keeping a flow rate at 800-1300sccm, allowing the vacuum degree in the vacuum evaporation coating chamber to reach 2-3Pa, and allowing the argon to produce ionization and bombard the surface of the plastic product for 150-180s under voltage of 2-2.4KV and current of 0.8-1A, and coating: vacuumizing the vacuum evaporation coating chamber to allow the vacuum degree in the vacuum evaporation coating chamber to be 2.0*10<-2>-3.0*10<-2>Pa, and coating a metal film on the surface of the plastic product as follows: allowing the voltage to be 220-240V, the current to be 60-65A, and the time to be 18-20s, and taking tin, indium or an indium and tin alloy as a coating material with the weight of 0.172-0.192g to ensure no conducting of the surface of the product. The plastic surface treated by the method has the higher metal texture.

Description

technical field [0001] The invention relates to the technical field of insulating and non-conductive coatings, in particular to a treatment method for making a plastic surface have a high metal texture. Background technique [0002] Due to the characteristics of easy molding and light weight, plastics are widely used in the manufacture of electronic product casings. As the electronic product market has higher and higher requirements on product appearance, people are no longer satisfied with the color of plastic itself, and electronic products with metallic luster have attracted more and more attention. [0003] Non conductive vacuum metalization (abbreviated as NCVM) technology refers to the organic conversion of metal materials under vacuum conditions by using specific means such as chemistry and physics, so that metals are converted into particles, deposited or adsorbed on the surface of plastic materials , forming a non-conductive coating. The existing metallized film o...

AI Technical Summary

Problems solved by technology

The existing metallized film on the surface of the product has the following disadvantages: before electroplating, the product surface needs to be sprayed with a primer to cover the defects on the product surface, but after the primer is sprayed, the effect on the product surface will become rough, which is different from the actual metal coating. There is a difference in feeling, and the strong metal texture cannot be achieved on the plastic surface

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