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Aluminum resin bonded body and method for producing same

A manufacturing method, technology of aluminum resin, used in chemical instruments and methods, coatings, layered products, etc.

Inactive Publication Date: 2014-05-28
NIPPON LIGHT METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods do not have problems in performance such as joint strength and airtightness of the joint part, there are other problems, such as the generation of halogen-derived gas during the etching process, and measures must be taken to prevent the surrounding metal parts and devices from being damaged. Corrosion, and measures not to pollute the surrounding environment

Method used

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  • Aluminum resin bonded body and method for producing same
  • Aluminum resin bonded body and method for producing same
  • Aluminum resin bonded body and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] (1) Manufacture of surface-treated aluminum substrates

[0061] An aluminum substrate for a joint strength test of a size of 40 mm×40 mm was cut out from a commercially available aluminum plate material (A5052; plate thickness 2.0 mm). Next, a hole of 10 mmφ was made in the center of the aluminum substrate cut into a size of 40 mm×40 mm to prepare an aluminum substrate for an airtightness test. In addition, the concentration of sodium hydroxide 100g / L and the concentration of zinc oxide 25g / L (in terms of Zn + 20g / L) sodium aqueous solution containing zinc ions. Next, the above-mentioned aluminum substrate was immersed in the sodium aqueous solution containing zinc ions at room temperature for 3 minutes, and then washed with water to prepare a surface-treated aluminum substrate for testing in which an oxygen-containing film containing zinc was formed on the surface. .

[0062] (2) Determination of the oxygen content of the film

[0063] The obtained surface-treated ...

Embodiment 2～9

[0078] In addition to using the aluminum substrate of the material shown in Table 1 for the aluminum substrate, the alkaline aqueous solution containing zinc ions uses the solution composed of the solution shown in Table 1, and the concentration of the alkali hydroxide and the concentration of zinc ions are changed to the concentrations shown in Table 1. Except that, an aluminum resin bonded body for a test was produced in the same manner as in Example 1, and IR analysis of the resin portion, and evaluation tests for bonding strength and airtightness were performed in the same manner as in Example 1.

[0079] The results are shown in Table 1.

Embodiment 10～11

[0081] The aluminum substrates were made of the materials shown in Table 1, and were immersed in a 30 wt% nitric acid aqueous solution at room temperature for 5 minutes, then thoroughly washed with ion-exchanged water, and then immersed in a 5 wt% sodium hydroxide solution at 50°C for 1 After 10 minutes, wash with water, and then soak in 30wt% nitric acid aqueous solution at room temperature for 3 minutes before washing with water. Next, an aluminum film formation treatment was performed by immersing in hot water at 80° C. for 20 minutes for hydration treatment to form an oxygen-containing film containing aluminum compound AlO(OH) on the surface of the aluminum substrate. 1 An aluminum resin bonded body for testing was manufactured in the same manner as in Example 1, and the IR analysis of the resin portion, and the evaluation tests for bonding strength and airtightness were performed in the same manner as in Example 1.

[0082] The results are shown in Table 1.

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PUM

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Abstract

Provided is an aluminum resin bonded body which exhibits excellent bonding strength, does not suffer from strength decrease after endurance test, and is capable of maintaining the excellent bonding strength for a long period of time. An aluminum resin bonded body which comprises: an aluminum base that is formed of aluminum or an aluminum alloy; an oxygen-containing film that is formed on the surface of the aluminum base and contains oxygen; and a resin molded body that is bonded onto the oxygen-containing film and is formed of a thermoplastic resin. The thermoplastic resin contains an element that has an unshared electron pair in a repeating unit and / or at an end.

Description

technical field [0001] The present invention relates to an aluminum resin bonded body in which an aluminum base material formed of aluminum or an aluminum alloy and a resin molded body made of a thermoplastic resin are firmly bonded together by injection molding or thermocompression bonding of a thermoplastic resin, and its manufacture method. Background technique [0002] In recent years, in the fields of various sensor parts of automobiles, home appliance parts, industrial equipment parts, etc., aluminum substrates made of aluminum or aluminum alloys with high heat dissipation properties and thermoplastic resins with high insulation performance, light weight and low price are combined. Aluminum-resin bonded bodies that are joined together by resin molded bodies are widely used, and their use is expanding. [0003] Conventionally, an aluminum-resin bonded body in which such an aluminum base material and a resin molded body of different materials are bonded to each other in...

Claims

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Application Information

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IPC IPC(8): B29C45/14B29C65/64B29K67/00B29K81/00B29K105/22
CPCB29C45/14311B29C65/8207B29C65/8215B29C65/8246B29C65/8253B29C65/8261B29C66/026B29C66/1122B29C66/1222B29C66/1224B29C66/71B29C66/7392B29C66/7422B29K2705/02B29C65/02B29C65/04B29C65/06B29C65/08B29C65/14B29C65/16B29C65/18B29C65/20C23C22/68C23C22/73C23C22/78Y10T428/31507Y10T428/31533Y10T428/31678B29K2081/06B29K2081/00B29K2081/04B29K2059/00B29K2079/085B29K2079/08B29K2077/00B29K2071/12B29K2069/00B29K2067/00B29K2023/12B32B15/08B32B2255/06
Inventor 饭野诚己远藤正宪吉田美悠姬矶部昌司
Owner NIPPON LIGHT METAL CO LTD
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