US 9,809,895 B2
Method of preparing aluminum alloy resin composite and aluminum alloy-resin composite obtainable by the same
Jian Sun, Guangdong (CN); Yanqin Wu, Guangdong (CN); Qiang Guo, Guangdong (CN); and Liang Chen, Guangdong (CN)
Assigned to SHENZHEN BYD AUTO R&D COMPANY LIMITED, Shenzhen (CN); and BYD COMPANY LIMITED, Shenzhen (CN)
Filed by BYD COMPANY LIMITED, Shenzhen, Guangdong (CN); and SHENZHEN BYD AUTO R&D COMPANY LIMITED, Shenzhen, Guangdong (CN)
Filed on Aug. 22, 2014, as Appl. No. 14/466,906.
Application 14/466,906 is a continuation of application No. PCT/CN2012/082031, filed on Sep. 26, 2012.
Claims priority of application No. 2012 1 0043640 (CN), filed on Feb. 24, 2012.
Prior Publication US 2014/0363686 A1, Dec. 11, 2014
This patent is subject to a terminal disclaimer.
Int. Cl. C25D 11/08 (2006.01); B29C 45/14 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); B32B 27/28 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); C25D 11/16 (2006.01); C25D 11/24 (2006.01); B29K 69/00 (2006.01); B29K 71/00 (2006.01); B29K 77/00 (2006.01); B29K 81/00 (2006.01); B29K 105/00 (2006.01); B29K 705/02 (2006.01); B29L 9/00 (2006.01)
CPC C25D 11/08 (2013.01) [B29C 45/14311 (2013.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 27/286 (2013.01); B32B 27/32 (2013.01); B32B 27/365 (2013.01); C25D 11/16 (2013.01); C25D 11/24 (2013.01); B29C 2045/14868 (2013.01); B29K 2023/06 (2013.01); B29K 2069/00 (2013.01); B29K 2071/12 (2013.01); B29K 2077/00 (2013.01); B29K 2081/04 (2013.01); B29K 2105/0085 (2013.01); B29K 2105/0088 (2013.01); B29K 2705/02 (2013.01); B29L 2009/003 (2013.01); B29L 2009/005 (2013.01); B32B 2270/00 (2013.01); B32B 2311/24 (2013.01); B32B 2509/00 (2013.01); B32B 2605/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of preparing an aluminum alloy-resin composite, comprising:
S1: anodizing a surface of an aluminum alloy substrate to form an oxide layer on the surface, the oxide layer including nanopores;
S2: immersing the resulting aluminum alloy substrate obtained at step S1 in a buffer solution having a pH of about 10 to about 13, to form corrosion pores on an outer surface of the oxide layer and form a double-layer pore structure including the corrosion pores and the nanopores, wherein the corrosion pores have a larger diameter than the nanopores, the corrosion pores have an average diameter of about 200 nm to about 2000 nm, and the corrosion pores are in communication with the nanopores; and
S3: injection molding a resin onto the surface of the resulting aluminum alloy substrate obtained in step S2 in a mold to obtain the aluminum alloy-resin composite.
 
8. A method of preparing an aluminum alloy-resin composite, comprising:
S1: anodizing a surface of an aluminum alloy substrate to form an oxide layer on the surface, the oxide layer including nanopores;
S2: immersing the resulting aluminum alloy substrate obtained at step S1 in a buffer solution having a pH of about 10 to about 13, to form corrosion pores on an outer surface of the oxide layer and form a double-layer pore structure including the corrosion pores and the nanopores, the corrosion pores being wherein the corrosion pores have a larger diameter than the nanopores; and
S3: injection molding a resin onto the surface of the resulting aluminum alloy substrate obtained in step S2 in a mold to obtain the aluminum alloy-resin composite,
wherein the buffer solution comprises a soluble alkali and a soluble dihydrogen phosphate.
 
12. A method of preparing an aluminum alloy-resin composite, comprising:
S1: anodizing a surface of an aluminum alloy substrate to form an oxide layer on the surface, the oxide layer including nanopores;
S2: immersing the resulting aluminum alloy substrate obtained at step S1 in a buffer solution having a pH of about 10 to about 13, to form corrosion pores on an outer surface of the oxide layer and form a double-layer pore structure including the corrosion pores and the nanopores, the corrosion pores being in communication with the nanopores, wherein the corrosion pores have an average diameter of about 200 nm and the corrosion pores have a larger diameter than the nanopores; and
S3: injection molding a resin onto the surface of the resulting aluminum alloy substrate obtained in step S2 in a mold to obtain the aluminum alloy-resin composite,
wherein the resin is a thermoplastic resin, and
wherein the thermoplastic resin includes a main resin and a polyolefin resin.