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Method of enhancing polymer-to-metal interface bonding

A metal interface and polymer technology, applied in surface pretreatment bonding methods, adhesives, etc., can solve problems such as unreliability, long processing time, and unstable weather resistance, and achieve improved production efficiency, high-strength bonding, and solution The effect of complex product technology

Active Publication Date: 2021-02-09
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using adhesives to bond metals and polymers has the disadvantages of long processing times, inconsistent weather resistance and unreliability

Method used

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  • Method of enhancing polymer-to-metal interface bonding
  • Method of enhancing polymer-to-metal interface bonding
  • Method of enhancing polymer-to-metal interface bonding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for improving the combination of a polymer and a metal interface, comprising the steps of:

[0039] 1) The metal plate is cut into a metal sample 1, and the surface of the metal sample 1 is cleaned with ultrasonic waves using acetone solution as a solvent.

[0040] 2) Install the metal sample 1 on the stage 2, start the sandblasting machine 3, inject the sandblasting medium 4 into the sandblasting machine 3 from the feeding mechanism 5, and blast the surface of the metal sample 1. By adjusting the height of the stage 2, the sandblasting distance between the particle beam of the sandblasting medium 4 and the metal sample 1 during sandblasting is controlled; the sandblasting distance is controlled at 50 mm. The amount of blasting media 4 used per square centimeter of the surface of the metal sample 1 is 50 mg. After the blasting is completed, the floating sand on the surface of the metal sample 1 is removed.

[0041] 3) Put the sandblasted metal sample 1 into t...

Embodiment 2

[0048] A method for improving the combination of a polymer and a metal interface, comprising the steps of:

[0049] 1) The metal plate is cut into a metal sample 1, and the surface of the metal sample 1 is cleaned with ultrasonic waves using acetone solution as a solvent.

[0050] 2) Install the metal sample 1 on the stage 2, start the sandblasting machine 3, inject the sandblasting medium 4 into the sandblasting machine 3 from the feeding mechanism 5, and blast the surface of the metal sample 1. By adjusting the height of the stage 2, the sandblasting distance between the particle beam of the sandblasting medium 4 and the metal sample 1 during sandblasting is controlled; the sandblasting distance is controlled at 0.1 mm. The amount of blasting media 4 used per square centimeter of the surface of the metal sample 1 is 0.01 mg.

[0051] After the blasting is completed, the floating sand on the surface of the metal sample 1 is removed.

[0052] 3) The metal sample 1 after the ...

Embodiment 3

[0061] A method for improving the combination of a polymer and a metal interface, comprising the steps of:

[0062] 1) The metal plate is cut into a metal sample 1, and the surface of the metal sample 1 is cleaned with ultrasonic waves using acetone solution as a solvent.

[0063] 2) Install the metal sample 1 on the stage 2, start the sandblasting machine 3, inject the sandblasting medium 4 into the sandblasting machine 3 from the feeding mechanism 5, and blast the surface of the metal sample 1. By adjusting the height of the stage 2, the sandblasting distance between the particle beam of the sandblasting medium 4 and the metal sample 1 during sandblasting is controlled; the sandblasting distance is controlled at 100 mm. The amount of blasting media 4 used per square centimeter of the surface of the metal sample 1 is 100 mg.

[0064] After the blasting is completed, the floating sand on the surface of the metal sample 1 is removed.

[0065] 3) Put the sandblasted metal samp...

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Abstract

The invention provides a method of enhancing polymer-to-metal interface bonding, and belongs to the technical field of metal polymer compounding. The method comprises the following steps: 1) cutting ametal plate into a metal sample, and cleaning the surface of the metal sample; 2) mounting the metal sample on an objective table, starting a sand blasting machine, injecting a sand blasting medium into the sand blasting machine from a feeding mechanism, and performing sand blasting on the surface of the metal sample; and 3) putting the metal sample subjected to sand blasting treatment into a mold, and injecting the molten polymer I onto the surface of the metal sample through an injection system to finish combination of the polymer I and the metal sample. According to the invention, the combination of metal and polymer is realized by utilizing a process of combining co-spraying and injection molding, so that the metal surface treatment process is simplified, the production efficiency isimproved, and the appearance structure diversity of the metal-plastic composite material is realized. The polymer melt is injected to the surface of the metal sample, thereby further realizing combination of the polymer and the metal sample by utilizing the affinity of the dopant layer and the polymer.

Description

technical field [0001] The invention belongs to the technical field of metal-polymer composites, and relates to a method for improving the interface bonding of polymers and metals. Background technique [0002] Metal-plastic composite materials replace traditional materials, and produce products with low cost, high strength and light weight. Metal-plastic composites are widely used in the aerospace and automotive industries to reduce costs without compromising material performance, safety and other properties. In the prior art, methods for connecting metal and plastic mainly include bonding, mechanical fastening and welding. [0003] Adhesive bonding suffers from long processing times, inconsistent weather resistance, and unreliability. Mechanical fastening requires clamping and bonding with screws and rivets, which will increase the weight, thickness, and stress concentration of the structure. Although laser welding has the advantages of fast forming, small heat input, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J5/02
CPCC09J5/02C09J2481/00C09J2427/00C09J2463/00C09J2461/00C09J2477/00C09J2475/00C09J2467/00C09J2423/04
Inventor 李熹平王博文董卫平汪斌胡仲略王思思宫宁宁
Owner ZHEJIANG NORMAL UNIVERSITY
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