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A method for bonding the surface of aluminum or aluminum alloy to resin material

A technology of aluminum alloy surface and resin material, which is applied in the field of bonding aluminum or aluminum alloy surface and resin material, can solve problems such as devices with complex shapes, and achieve the effects of high bonding strength, high stability, and simple operation process

Inactive Publication Date: 2012-02-15
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, some bonding methods of metal and resin materials have been reported, but there are still some defects in bonding strength, complex shape devices, environmental protection, etc.

Method used

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  • A method for bonding the surface of aluminum or aluminum alloy to resin material
  • A method for bonding the surface of aluminum or aluminum alloy to resin material
  • A method for bonding the surface of aluminum or aluminum alloy to resin material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The metal parts to be bonded are pure aluminum substrates with a size of 50×30×0.2 (mm), and the resin material to be bonded is low-density polyethylene (LDPE). Fast bonding is achieved through the following steps:

[0065] Step 1): Self-assemble into a polymer nanofilm on the surface of the pure aluminum substrate and the surface of LDPE:

[0066] The solvent of the self-assembly solution is dehydrated alcohol: water=95:5 (volume ratio), and the alkoxysilane compound with reactive mercapto groups is:

[0067]

[0068] The concentration is 1.0mmol / L; the aging time of the assembly solution is 24h;

[0069] The configuration process of the self-assembly solution is as follows: firstly weigh the reactive mercapto alkoxysilane compound according to the concentration of the solution to be configured and put it into the volumetric flask, then add absolute ethanol at a ratio of 95:5, and then add Ionized water;

[0070] The assembly is as follows: the material to be trea...

Embodiment 2

[0081] The metal part to be bonded is an aluminum-zinc alloy substrate with a size of 50×30×0.3 (mm), and the resin material to be bonded is polypropylene (PP). The fast bonding is achieved through the following steps:

[0082] Step 1): Preprocessing

[0083] First, the aluminum-zinc alloy substrate was cleaned with pure acetone solvent, and the polypropylene was ultrasonically washed with absolute ethanol for 20 minutes, and dried after washing;

[0084] Then, use 10% SK-144 alkali solution to degrease the surface of the aluminum-zinc alloy substrate at 60°C, rinse the surface with clean water and dry it;

[0085] Then, the surface of the aluminum-zinc alloy substrate and the surface of polypropylene were subjected to corona discharge treatment for 20 s with a low-temperature plasma power supply.

[0086] Step 2): Self-assemble into a polymer nanofilm on the surface of the aluminum-zinc alloy substrate and the surface of polypropylene:

[0087] The solvent of the self-assem...

Embodiment 3

[0100] The metal parts to be bonded are aluminum-magnesium alloy substrates with a size of 50×30×0.3 (mm), and the resin material to be bonded is high-density polyethylene (HDPE). The fast bonding is achieved through the following steps:

[0101] Step 1): Preprocessing

[0102] Firstly, the Al-Mg alloy substrate was cleaned with pure acetone solvent, and the HDPE was ultrasonically washed with absolute ethanol for 15 minutes, and dried after washing;

[0103] Then, degreasing the surface of the aluminum-magnesium alloy substrate with an aqueous solution of 10% SK-144 alkali solution at 70° C., rinsing the surface with clean water and drying it;

[0104] The surface of the aluminum-magnesium alloy substrate and the surface of the HDPE were then subjected to corona discharge treatment for 20 s with a low-temperature plasma power supply.

[0105] Step 2): Self-assemble into a polymer nanofilm on the surface of the aluminum-magnesium alloy substrate and the surface of HDPE:

[010...

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Abstract

The invention discloses a bonding method of aluminum or aluminum alloy and a resin material. Firstly, the surface of the aluminum or aluminum alloy to be bonded with the resin material and the surface of the resin material are self-assembled into a polymer nano film, and then the polymer nano The surface of the film is sprayed with a low-concentration organic peroxide and co-vulcanizing agent solution to modify its surface, and then heat and press to achieve high-strength bonding between aluminum or aluminum alloy and resin materials. The present invention adopts the method of self-assembly and impregnation, so it can process complex-shaped materials and parts, and can realize the bonding of complex-shaped aluminum or aluminum alloys and resin materials; it belongs to an environmentally friendly formula, and the operation process is simple. The bonding strength between alloy / resin materials is high and the stability is high.

Description

technical field [0001] The invention belongs to the technical field of metal surface modification, and relates to the bonding of a metal surface and a resin material, in particular to a method for bonding an aluminum or aluminum alloy surface to a resin material. Background technique [0002] The new manufacturing industry in the 21st century should be a manufacturing industry with high productivity, high performance and low environmental load (two high and one low). For more than half a century, as a main material surface treatment technology, chromium passivation process has been widely used in different industrial fields, such as automobile, aircraft and shipbuilding industries. However, Cr contained in chromium compounds 6+ Toxicity and carcinogenicity have seriously hindered the continued use of this process. With the strengthening of people's awareness of environmental protection in recent years, it is imperative to develop "green surface treatment technology". [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/12C08J5/18C09J5/04C09J5/06C09J5/02
Inventor 王芳张志毅
Owner NORTHWEST A & F UNIV
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