Shell, method of preparing the shell and electronic product comprising the shell
A shell, a method of preparing the shell and an electronic product comprising the shell are provided. The shell may comprise: a metal shell body, a plastic part made of a resin, and an oxide layer formed between the metal body and the plastic part, joining the plastic part to the metal shell body, wherein the oxide layer contains corrosion pores having an average diameter of about 200 nm to about 2000 nm in the surface contacting the plastic part, and nanopores having a diameter of about 10 to 100 nm in the surface contacting the metal shell body, and a part of the resin is filled in the corrosion pore and corrosion pore.
1. A shell comprising:
a metal shell body;
a plastic part made of a type of resin material; and
an oxide layer formed between the metal body and the plastic part, joining the plastic part to the metal shell body,
wherein the oxide layer contains corrosion pores at a surface contacting the plastic part, and nanopores at a surface contacting the metal shell body, the corrosion pores are larger than the nanopores in diameter, and the corrosion pores are in communication with the nanopores, and
wherein the corrosion pores and nanopores are filled with the same type of resin material via injection molding.
2. The shell according to claim 1 , wherein the plastic part further comprises:
a strengthening rib made of a resin, extending along an inner surface of the metal shell body;
wherein the strengthening rib is joined to an inner surface of the metal shell body.
3. The shell according to claim 1 , wherein the plastic part comprises:
a plastic patch provided on an inner surface of the metal shell body, and joined to the inner surface of the metal shell body,
wherein the oxide layer is formed between the plastic patch and the inner surface of the metal shell body, joining the plastic patch to the inner surface of the metal shell body.
4. The shell according to claim 1 , wherein the plastic part comprises:
a plastic support provided on an inner surface of the metal shell body, and joined to the inner surface of the metal shell body,
wherein the oxide layer is formed between the plastic support and the inner surface of the metal shell body, joining the plastic support to the inner surface of the metal shell body.
5. The shell according to claim 1 , wherein the plastic part comprises:
a plastic basal plate provided on an end of the metal shell body,
wherein:
the plastic basal plate is perpendicular to the metal shell body, and an edge of the plastic basal plate is joined to an inner surface or the end of the metal shell body,
the oxide layer is formed between the plastic basal plate and the inner surface or the end of the metal shell body, joining the plastic basal plate to the inner surface or the end of the metal shell body.
6. The shell according to claim 1 , wherein the resin includes a thermoplastic resin.
7. The shell according to claim 6 , wherein the thermoplastic resin comprises a polyolefin resin.
8. The shell according to claim 7 , wherein the thermoplastic resin further comprises a mixture of polyphenylene ether and polyphenylene sulfide, and the polyolefin resin has a melting point of about 65° C. to about 105° C.
9. The shell according to claim 7 , wherein the thermoplastic resin further comprises a mixture of polyphenylene oxide and a polyamide, and the polyolefin resin has a melting point of about 65° C. to about 105° C.
10. The shell according to claim 7 , wherein the thermoplastic resin further comprises a polycarbonate, and the polyolefin resin has a melting point of about 65° C. to about 105° C.
11. The shell according to claim 7 , wherein the polyolefin resin comprises a grafted polyethylene.
12. The shell according to claim 7 , wherein based on 100 weight parts of the thermoplastic resin, the thermoplastic resin further comprises about 1 weight part to about 5weight parts of cyclic polyester.
13. The shell according to claim 7 , wherein the thermoplastic resin further comprises at least one of a fiber filler and a powder filler,
wherein the fiber filler includes at least one selected from the group consisting of fiberglass, carbon fiber and polyamide fiber, and the powder filler includes at least one selected from the group consisting of silica, talc, aluminum hydroxide, magnesium hydroxide, calcium carbonate, magnesium carbonate, glass and kaolin.