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Fiber metal laminated plate and preparation method thereof

A technology of fiber metal and laminated boards, applied in the direction of metal layered products, chemical instruments and methods, lamination, etc., can solve the problems of weak bonding force and achieve the effect of strong bonding force

Inactive Publication Date: 2017-05-24
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a fiber with strong bonding force between the metal layer and the fiber cloth for the weak bonding force between the metal layer and the fiber cloth in the fiber metal laminate in the prior art. Metal laminate and method of making the same

Method used

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  • Fiber metal laminated plate and preparation method thereof

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preparation example Construction

[0037] The present invention also provides a method for preparing a fiber-metal laminate, wherein the method includes: coating the surface of the metal layer with an adhesive formed of a resin composition containing a thermosetting adhesive resin and magnetic chopped fibers , and under the action of a magnetic field, the magnetic chopped fibers in the binder are erected so that the angle between the magnetic chopped fibers and the metal layer is greater than 0°, and the prepreg fiber cloth and the metal layer The layers are stacked so that the surface with the adhesive on the metal layer faces the prepreg fiber cloth, and then hot pressing is performed to combine the prepreg fiber cloth and the metal layer into one body to obtain the fiber metal laminate.

[0038] In addition, in order to obtain a fiber-metal laminate with excellent bonding force between the metal layer and the fiber layer, the angle between the erected magnetic chopped fibers and the metal layer is preferably ...

Embodiment 1

[0072] 1. Preparation of binder

[0073] 1) Prepare the pretreatment agent according to the ratio (mass ratio) of silane coupling agent: dispersant: ethanol = 1:3:100;

[0074] 2) Spray the pretreatment agent on the surface of 4kg (magnetic glass chopped fibers, the length is 200 μm, and the cross-sectional diameter is 10um), and dry to obtain the pretreatment fiber filament X;

[0075] 3) Weigh 48kg of epoxy resin and 25kg of reactive diluent, and disperse with a high-speed disperser (purchased from Shanghai Farfly Energy Co., Ltd., the same below) to obtain mixture A;

[0076] 4) Add the pretreated fiber filament X obtained in step 2) into mixture A, and disperse with a high-speed disperser to obtain mixture B;

[0077] 5) Weigh 15kg of dicyandiamide (curing agent), 5kg of 1-methylimidazole (curing accelerator), and 3kg of defoamer, add them to mixture B, and disperse with a high-speed disperser to obtain a binder;

[0078] 6) Cut the aluminum alloy into a size (2 pieces) ...

Embodiment 2

[0082] 1) Prepare the pretreatment agent according to the ratio (mass ratio) of silane coupling agent: dispersant: ethanol = 1:3:100;

[0083] 2) Spray a pretreatment agent on the surface of 8 kg of magnetic chopped fibers (magnetic glass chopped fibers, the length is 200 μm, and the cross-sectional diameter is 10 μm), and dry to obtain the pretreated fiber filament X;

[0084] 3) Take 75kg of epoxy resin and 10kg of reactive diluent, and disperse with a high-speed disperser to obtain mixture A;

[0085] 4) Add the pretreated fiber filament X obtained in step 2) into mixture A, and disperse with a high-speed disperser to obtain mixture B;

[0086] 5) Weigh 5 kg of dicyandiamide (curing agent), 0.7 kg of 1-methylimidazole (curing accelerator), and 1.3 kg of defoamer, add them to mixture B, and disperse with a high-speed disperser to obtain a binder;

[0087] 6) Cut the aluminum alloy into a size (2 pieces) with a length and width of 200 mm×100 mm, put it into 5 wt % nitric aci...

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Abstract

The invention relates to the field of fiber metal laminated plates, and discloses a fiber metal laminated plate and a preparation method thereof. The fiber metal laminated plate includes a metal layer, a resin bonding layer and a fiber layer which are sequentially stacked, magnetic chopped fiber is between the resin bonding layer and the fiber layer, and the included angle between the magnetic chopped fiber and the fiber layer is greater than 0 degree. The bonding force between the metal layer of the metal laminated plate and fiber cloth is stronger.

Description

technical field [0001] The invention relates to a fiber metal laminated board and a preparation method thereof. Background technique [0002] Aluminum alloy materials have lower density and higher strength and impact resistance, and have good machinability and low cost. Therefore, it has been widely used in the aerospace field since the early 1930s. However, aluminum alloy materials have some limitations such as low fatigue life and corrosion resistance, which limit their further application value. The glass fiber and carbon fiber composite materials invented in the 1940s and 1950s have high specific strength and specific stiffness, and have good fatigue properties and corrosion resistance. However, the out-of-plane transverse strength and impact resistance of this laminated composite material The performance is poor, and the interface between the layers is prone to delamination. In order to overcome some shortcomings of aluminum alloy materials and fiber composite materi...

Claims

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Application Information

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IPC IPC(8): B32B15/08B32B27/04B32B27/12B32B5/16B32B37/12B32B37/10B32B33/00
Inventor 毛定文崔静娜罗文海
Owner BYD CO LTD
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