Aluminum alloy and polyphenylene sulfide thermal resin composite material as well as preparation method thereof

Abstract

The invention provides an aluminum alloy and polyphenylene sulfide thermal resin composite material as well as a preparation method thereof. The composite material consists of two parts including an aluminum alloy component and polyphenylene sulfide thermal resin; the surface of the aluminum alloy component is successively subjected to surface pretreatment, alkaline etching processing, film formation treatment and microporous expansion treatment, and then the surface of the aluminum alloy component with expansion micropores is subjected to polyphenylene sulfide thermal resin coating and lamination treatment so as to be combined into an integrated aluminum plastic composite material. According to the invention, the surface of the aluminum alloy component is subjected to phosphoric acid film formation treatment so as to obtain uniform micropores, then the micropores are expanded, and then the surface of the aluminum alloy component and the expanded micropores are subjected to polyphenylene sulfide thermal resin coating and lamination treatment, so that the combination force between the surface of the aluminum alloy component and the expanded micropores increases greatly, and the aluminum plastic composite material with a favorable combination performance is prepared; the polyphenylene sulfide thermal resin, the surface of which is coated and laminated, cannot be stripped off from the aluminum alloy component, and metal shells of electronic equipment and domestic electric appliances can be protected truly and effectively.

Description

technical field [0001] The invention belongs to the technical field of metal composite materials, and relates to an aluminum alloy composite material, in particular to an aluminum alloy and polyphenylene sulfide thermal resin composite material and a preparation method thereof. Background technique [0002] In recent years, with the diversification of people's demand for the appearance of electronic products, the appearance quality of electronic products is constantly changing. The single metal or plastic casing of electronic products can no longer meet the diversified market needs. Combined electronic product casings have become people's new favorite. At present, some of the more popular electronic product bodies on the market are the products of the combination technology of aluminum alloy surface treatment and resin polymer. For a long time, surface treatment researchers have been researching ways to combine aluminum alloys and resin polymers without using adhesives, but...

AI Technical Summary

Problems solved by technology

Although the bonding force of the composite can meet the requirements of a certain quality, the process is still time-consuming and labor-intensive, especially because it is an aluminum alloy shape with a surface roughness of 5-50 μm or more and fine concave or convex parts below 1 μm on the surface. Compounding thermoplastic resin on the surface of the component still makes the thermoplastic resin composition easy to peel off from the aluminum alloy shape under the impact of external force, and cannot really effectively protect the metal casing of electronic equipment and household appliances

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