Method for bonding aluminum or aluminum alloy surface with resin material

A technology of aluminum alloy surface and resin material, which is applied in the bonding field of 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, environmentally friendly formula, and simple steps

Inactive Publication Date: 2010-05-26
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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  • Method for bonding aluminum or aluminum alloy surface with resin material
  • Method for bonding aluminum or aluminum alloy surface with resin material
  • Method for bonding aluminum or aluminum alloy surface with resin material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The metal part to be bonded is a pure aluminum substrate 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:

[0062] Step 1): Self-assemble into polymer nano film on the surface of pure aluminum substrate and LDPE surface:

[0063] The solvent of the self-assembly solution is absolute ethanol: water=95:5 (volume ratio), and the alkoxysilane compound with reactive mercapto groups is:

[0064]

[0065] The concentration is 1.0mmol / L; the maturation time of the assembly solution is 24h;

[0066] The configuration process of the self-assembly solution is as follows: first weigh the reactive sulfhydryl alkoxysilane compound into a volumetric flask according to the concentration of the solution to be configured, and then add anhydrous ethanol at a ratio of 95:5, and then add it. Ionized water

[0067] The assembly is as follows: the material to be processed is put into the configu...

Embodiment 2

[0078] 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). Fastening and bonding are achieved through the following steps:

[0079] Step 1): Pretreatment

[0080] Firstly, the aluminum-zinc alloy substrate was washed with pure acetone solvent, and polypropylene was ultrasonically washed with absolute ethanol for 20 minutes, and then dried;

[0081] Then, degrease the surface of the aluminum-zinc alloy substrate with 10% SK-144 alkaline solution at 60°C, rinse the surface with clean water and dry it;

[0082] Then, the surface of the aluminum-zinc alloy substrate and the polypropylene surface were treated by corona discharge for 20s with a low-temperature plasma power supply.

[0083] Step 2): Self-assemble into polymer nano film on the surface of aluminum-zinc alloy substrate and polypropylene surface:

[0084] The solvent of the self-assembly solution is absolute ethanol: water = 90:10,...

Embodiment 3

[0097] The metal part to be bonded is an aluminum-magnesium alloy substrate with a size of 50×30×0.3 (mm), and the resin material to be bonded is high-density polyethylene (HDPE). Fastening and bonding are achieved through the following steps:

[0098] Step 1): Pretreatment

[0099] First, the aluminum-magnesium alloy substrate was washed with pure acetone solvent, and the HDPE was ultrasonically washed with absolute ethanol for 15 minutes, and then dried;

[0100] Then, degrease the surface of the aluminum-magnesium alloy substrate with an aqueous solution of 10% SK-144 alkaline solution at 70°C, rinse the surface with clean water and dry it;

[0101] Then, the surface of the aluminum-magnesium alloy substrate and the HDPE surface were treated by corona discharge for 20s with a low-temperature plasma power supply.

[0102] Step 2): Self-assemble into polymer nano film on the surface of aluminum-magnesium alloy substrate and HDPE surface:

[0103] The solvent of the self-assembly solutio...

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Abstract

The invention discloses a method for bonding an aluminum or aluminum alloy surface with a resin material. The method comprises the following steps of: firstly, self-assembling high-polymer nano-membranes on the aluminum or aluminum alloy surface bonded with the resin material and on the surface of the resin material; spraying low-concentration organic peroxide and auxiliary vulcanizing agent solution on the surface of the high-polymer nano-membrane so as to modify the surface; and realizing high-intensity bonding of the aluminum or aluminum alloy and the resin material by heating and compressing. The invention adopts a self-assembly dipping method, so that the method can treat materials and components with complex shapes and can realize bonding aluminum or aluminum alloy with complex shapes and the resin material. The method belongs to an environment-friendly formula and has simple and convenient operation process. Moreover, the method realizes high bonding intensity between the aluminum or aluminum alloy and the resin material and high stability.

Description

Technical field [0001] The invention belongs to the technical field of modification of metal surfaces, and relates to the bonding of metal surfaces and resin materials, in particular to a method for bonding aluminum or aluminum alloy surfaces to resin materials. 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 major material surface treatment technology, chromium passivation technology has been widely used in different industrial fields, such as automobiles, aircraft and shipbuilding industries. However, the Cr contained in chromium 6+ The toxicity and carcinogenicity seriously hinder 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". [0003] At prese...

Claims

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Application Information

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Patent Type & Authority Applications(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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