Metal composite board and preparation method thereof

A technology of metal composite board and metal base material, applied in the direction of metal layered products, chemical instruments and methods, synthetic resin layered products, etc., can solve the problems of poor adhesion and impact resistance during processing of coated aluminum plates, and achieve good Process adhesion, impact resistance processability, and the effect of simplifying the production method

Active Publication Date: 2009-04-01
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to overcome the disadvantages of poor processing adhesion and impact resistance of the coated alumin

Method used

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  • Metal composite board and preparation method thereof
  • Metal composite board and preparation method thereof
  • Metal composite board and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0022] The preparation method of the metal composite panel provided by the present invention includes, chemically treating the metal substrate, wherein the method also includes forming one or more resin layers on the chemically treated metal substrate, the resin layer It is a polyolefin resin layer grafted with maleic anhydride, or a resin layer blended with polyolefins grafted with maleic anhydride, and the other resins are polycarbonate, polycaprolactam, polyolefin, polyethylene terephthalate Ethylene glycol formate or polybutylene terephthalate.

[0023] According to the preparation method provided by the present invention, preferably, in order to uniformly laminate the resin layer on the metal substrate, the thickness of the resin layer formed on the surface chemically treated metal substrate is 5-100 microns. The resin layer may be a single layer or two or more layers. These resin layers may be unstretched non-oriented resin films, or uniaxially or biaxially oriented res...

Embodiment 1

[0036] The metal substrate is an aluminum plate with a thickness of 0.3mm (JIS1100)

[0037] 1. Pretreatment of aluminum plate

[0038] At a temperature of 50°C, the aluminum plate was soaked in 10% sodium hydroxide aqueous solution, and the surface of the aluminum plate was etched for 30 seconds, then neutralized with 10% nitric acid aqueous solution, and washed with water for 10 seconds.

[0039] 2. Anodizing treatment of aluminum plate

[0040] Next, immerse the aluminum plate after the above pretreatment into a solution containing 180g / L concentrated sulfuric acid and 0.03g / LAl 2 (SO 4 ) 3 electrolyte, with a voltage of 25V and 8A / dm 2 The current density of the aluminum plate was anodized for 5 minutes to form a porous anodized layer with a thickness of 4.5 microns. The anodized aluminum plate was then washed with water for 30 seconds and dried at a temperature of 80°C.

[0041] 3. Preparation of metal composite panels

[0042] Table 1 lists 9 kinds of maleic anhyd...

Embodiment 2

[0047] Prepare metal composite aluminum plate according to the method described in embodiment 1, difference is, the aluminum plate after the pretreatment is carried out anodic oxidation 5 minutes, obtains the anodized layer that is 20 microns thick; A blend resin of maleic anhydride-grafted polypropylene (PP / PP-g-MAH) was extruded into a molten resin layer with a thickness of 5 micrometers instead of the maleic anhydride-grafted polypropylene (PP-g-MAH) resin. Finally, a metal composite panel product is obtained.

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Abstract

The invention discloses a metal composite board, comprising metal substrate, as well as a chemical conversion treatment layer and one or more layer of resin bed which are sequentially attached on the surface of the metal substrate; wherein, the resin bed layer is a layer of polyolefin resin grafted by maleic anhydride, or a layer of blending polyolefin resin grafted by other resins or the maleic anhydride, and the other resins are polycarbonate, polycaprolactam, polyolefin, and polyethylene glycol terephthalate or polybutylene terephthalate. The invention also discloses a preparing method of the metal composite board. Both the processing adhesiveness and the impact work resistance of the metal composite board provided by the invention are excellent.

Description

technical field [0001] The invention relates to a metal composite board, and also relates to a preparation method of the metal composite board. Background technique [0002] Currently, the disclosed technology of plastic clad metal foil is to cover the surface-treated metal sheet with a resin film of thermoplastic resin. The resulting resin-coated metal sheet is excellent in corrosion resistance, electrical insulation, and punchability, and is therefore widely used, for example, for the outer packaging of home appliances such as capacitors, beverage cans, AV equipment, and air-conditioning covers, and furniture made of plywood , Steel furniture, elevator interior decoration, window materials, unit bathroom wall materials, unit bathroom ceiling materials, partitions and other building interior decoration. [0003] However, there are very few types of resin materials that can be used in these technologies, and only polyvinyl chloride (PVC), polyethylene terephthalate (PET), p...

Claims

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Application Information

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IPC IPC(8): B32B15/08B32B27/28B32B37/02B32B38/18
Inventor 张晓宇唐舒明李小花江林
Owner BYD CO LTD
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