Thermoplastic fiber metal laminate and preparation method thereof

A thermoplastic fiber, laminate technology, applied in metal layer products, chemical instruments and methods, lamination and other directions, can solve the overall mechanical properties of fiber metal laminates, uneven dispersion of thermoplastic resin, interlayer separation damage and other problems , to avoid the reduction of the mechanical properties of the material, improve the interlayer bonding force and mechanical properties, and achieve the effect of uniform dispersion.

Inactive Publication Date: 2018-06-26
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the preparation process of the existing thermoplastic fiber metal laminates, the prepreg needs to be heated and then combined with the metal material layer. In this process, the thermoplastic resin in the prepreg has a certain Fluidity, it is easy to cause uneven dispersion

Method used

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  • Thermoplastic fiber metal laminate and preparation method thereof

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preparation example Construction

[0016] The present invention provides a method for preparing a thermoplastic fiber-metal laminate, which includes the following steps: S1, providing a thermoplastic mixed fiber braid; S2, superimposing and arranging the thermoplastic mixed fiber braid and metal material layers to form Laminated board; S3, pressing the laminated board under hot pressing conditions, and then forming the thermoplastic fiber metal laminated board under cooling conditions, wherein the thermoplastic mixed fiber braid is woven from fiber bundles, and the fiber bundles It also includes thermoplastic fiber materials and reinforced fiber materials.

[0017] The preparation method of the thermoplastic fiber metal laminated board provided by the present invention can save the step of preparing the prepreg board by using the thermoplastic mixed fiber braid instead of the prepreg board, and utilizes that each fiber bundle in the thermoplastic fiber blend braid contains thermoplastic The characteristics of t...

Embodiment 1

[0041] It is used to illustrate the beneficial effects of the thermoplastic fiber metal laminate and its preparation method of the present invention. The specific preparation method is as follows:

[0042] (1) Put 0.4mm thick aluminum alloy sheets (200mm×100mm in length and width) (2 pieces) into 10% by weight aqueous sodium hydroxide solution for 30s, and then soak them in 5% by weight of nitric acid Soak in aqueous solution for 30s;

[0043] (2) Silane coupling agent KH550 (commercially purchased from Nanjing Aocheng Chemical Co., Ltd.) and ethanol are prepared in a silane coupling agent solution according to a weight ratio of 1:100, and the silane coupling agent solution is coated in the step (1) ) on the surface of two aluminum alloy sheets treated, and then dried in an oven at 80°C for 30min;

[0044] (3) Cut the thermoplastic mixed fiber braid A1 into the same size as the aluminum alloy sheet, and combine the thermoplastic mixed fiber braid A1 and the aluminum alloy sh...

Embodiment 2

[0048] It is used to illustrate the beneficial effects of the thermoplastic fiber metal laminate and its preparation method of the present invention.

[0049] Preparation method: Referring to Example 1, the difference is that the thermoplastic fiber-mixed braided fabric A2 is used instead of the thermoplastic mixed-fiber braided fabric A1 to obtain a thermoplastic fiber-metal laminate S2.

[0050] Microscopic observation of the cross-section of the fiber metal laminate S2 shows that the fiber metal laminate is composed of an aluminum alloy sheet, a resin-impregnated fiber layer (thickness 0.25mm) and an aluminum alloy sheet laminated in sequence.

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Abstract

The invention discloses a thermoplastic fiber metal laminate and a preparation method thereof. The preparation method comprises S1, providing a thermoplastic blended woven fabric, S2, overlaying the thermoplastic blended woven fabric and a metal material layer to obtain a laminated plate, and S3, hot-pressing the laminated plate and carrying out cooling molding to obtain the thermoplastic fiber metal laminate. The thermoplastic blended woven fabric is woven from a fiber bundle. The fiber bundle comprises a thermoplastic fiber material and a reinforcing fiber material. The preparation method issimple and improves the interlayer bonding force and mechanical properties of the thermoplastic fiber metal laminate.

Description

technical field [0001] The invention relates to the field of preparation of composite metal laminates, in particular to a thermoplastic fiber metal laminate 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 ov...

Claims

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Application Information

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IPC IPC(8): B32B15/14B32B5/08B32B37/06B32B37/10
CPCB32B15/14B32B5/08B32B37/06B32B37/10B32B2262/14
Inventor 王娟毛定文兰品双毛艳根韦中跃
Owner BYD CO LTD
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