Preparation method of shell and shell prepared by method

Abstract

The invention provides a preparation method of a shell and the shell prepared by the method. The preparation method of the shell comprises the following steps: providing a plastic substrate which is prepared from polyphenylene sulfide; performing plasma surface treatment to the surface of the plastic substrate; and formed a non-conductive metal film on the treated surface of the plastic substrate. The shell contains the plastic substrate and the non-conductive metal film formed on the surface of the plastic substrate, wherein the plastic substrate prepared from polyphenylene sulfide and the adhesive strength of the non-conductive metal film on the surface of the plastic substrate is above 3B.

Description

technical field [0001] The invention relates to a manufacturing method of a shell and a shell made by the method. Background technique [0002] The shells of existing electronic products (such as mobile phones, PDAs, etc.) are often coated with a metal layer or a film layer with a metal effect to make the appearance of the product have a metallic luster, thereby attracting consumers' attention. The casing applied to electronic products must firstly meet the condition of not interfering with electronic signals, so as to maintain the normal function of the product. Therefore, in the prior art, a non-conductive metal film is usually formed on the casing by non-conductive vacuum coating technology, so as to achieve a decorative effect without interfering with electronic signals. [0003] Polyphenylene sulfide is a thermoplastic crystalline resin with excellent comprehensive properties. It has the characteristics of high temperature resistance, corrosion resistance and radiation...

AI Technical Summary

Problems solved by technology

However, the surface free energy of polyphenylene sulfide is low (about 34MJ / m 2 ), the non-conductive metal film basically has no adhesion on the surface of the polyphenylene sulfide substrate, even if a paint layer is sprayed on the polyphenylene sulfide substrate as a transition layer, it will not help because the paint layer cannot adhere on polyphenylene sulfide substrate

Therefore, the application of polyphenylene sulfide plastic materials with the above-mentioned excellent properties in electronic product casings has been greatly restricted

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