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Forming method of carbon nanotube film/composite material and lightning protection structure

A technology of carbon nanotube film and composite materials, which is applied in the field of lightning protection of aircraft composite materials, can solve problems such as complex procedures, poor fusion of composite materials, and heavy weight of conductive functional layers for lightning protection, and achieve simplified processes, good interface fusion, and Guaranteed lightning protection effect

Active Publication Date: 2021-04-06
BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lightning protection structure solves the problem that the weight of the lightning protection conductive functional layer of the existing composite material is poorly integrated with the body composite material and the process is complicated, and the lightning protection structure can be integrally formed in one step

Method used

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  • Forming method of carbon nanotube film/composite material and lightning protection structure
  • Forming method of carbon nanotube film/composite material and lightning protection structure
  • Forming method of carbon nanotube film/composite material and lightning protection structure

Examples

Experimental program
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Effect test

Embodiment 1

[0058] This embodiment proposes a carbon nanotube film / composite material lightning protection structure, such as figure 1 and figure 2 As shown, the lightning protection structure includes:

[0059] Carbon nanotube films used as conductive layers;

[0060] Composite materials, including fibers and resins filled with fibers;

[0061] An adhesive film for electrical insulation between the composite material and the carbon nanotube film;

[0062] The carbon nanotube film, adhesive film and composite material are arranged in sequence.

[0063] The fiber is a dry fiber, and the material is not limited, and may be carbon fiber or glass fiber.

[0064] The carbon nanotube film is a continuous high-conductivity ultra-light carbon nanotube film.

[0065] The thickness of the carbon nanotube film is not less than 15 μm, and the thickness is adjustable.

[0066] The surface density of the carbon nanotube film is not more than 10g / m 2 .

[0067] The carbon nanotube thin film is ...

Embodiment 2

[0073] This embodiment provides a forming method for preparing the carbon nanotube film / composite material lightning protection structure in Example 1. The forming method is based on a highly conductive ultra-light carbon nanotube film for multi-scale nanocomposite lightning protection The structural design of the layer; the molding method adopts the low-cost liquid molding one-step method to obtain the ultra-light carbon nanotube film / composite material lightning protection structure as a whole; solves the problem of the fusion of the existing composite material lightning protection conductive functional layer with a large weight and the body composite material In order to solve the problems of poor performance and complicated process, the multi-scale ultra-light carbon nanotube composite lightning protection structure can be integrally formed in one step.

[0074] The multi-scale means that the lightning protection structure has a structure of nanometer / micrometer / millimeter / ...

Embodiment 3

[0089] This embodiment provides a molding method for preparing the carbon nanotube film / composite material lightning protection structure in Example 1. When the composite material is a prepreg, the carbon nanotube film / composite material is prepared by using an autoclave. The lightning protection structure of the material; specifically: the carbon nanotube film, the adhesive film and the prepreg are placed in sequence, and placed in an autoclave for curing to obtain the carbon nanotube film / composite material lightning protection structure.

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Abstract

The invention belongs to the technical field of lightning protection of aircraft composite materials, and in particular relates to a carbon nanotube film / composite material forming method and a lightning protection structure made therefrom. The molding method adopts a low-cost liquid molding one-step method to obtain an ultra-light carbon nanotube film / composite material lightning protection structure as a whole. The lightning protection structure includes: a carbon nanotube film used as a conductive layer; a composite material including fibers and resin filled in the fibers; an adhesive film used for electrical insulation between the composite material and the carbon nanotube film ; The carbon nanotube film, adhesive film and composite material are arranged in sequence. The lightning protection structure can be integrally formed in one step.

Description

technical field [0001] The invention belongs to the technical field of lightning protection of aircraft composite materials, and in particular relates to a carbon nanotube film / composite material forming method and a lightning protection structure made therefrom. Background technique [0002] During the service of the aircraft, it is inevitable to encounter thunder and lightning weather. Compared with metal materials, composite materials have poor conductivity. When lightning strikes a composite material component, if no suitable lightning protection measures are taken, it is difficult for the component to conduct the accumulated current away in a short time, which will cause the temperature to rise and cause the composite material to generate Deeply delaminated or severely ablated, jeopardizing normal use, composite components must be protected against lightning. At present, the lightning protection measures for composite materials are mainly through adding conductive func...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34B29C70/36B29C70/88B29K105/00B29L31/30
CPCB29C70/342B29C70/36B29C70/882B29K2105/0023B29L2031/3076B29C70/443B29C70/48B32B2307/72B32B2307/206B32B2260/021B32B2260/046B32B2571/00B32B2262/106B32B2307/202B32B2307/748B32B7/12B32B2262/101B32B2307/7376
Inventor 刘亚男高丽敏冯荣欣祖岩明
Owner BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC
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