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Thunder and lightning protection surface film and production method thereof

A lightning protection and surface film technology, applied in protective equipment, protective clothing, chemical instruments and methods, etc., can solve the problems of high maintenance cost, composite material damage, metal corrosion, etc., to achieve the effect of convenient maintenance and reduction of surface defects

Inactive Publication Date: 2015-09-30
XIAN AIRBORNE ELECTROMAGNETIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the extensive use of composite materials, these protective measures are far from enough. Weaving metal mesh into the composite material will cause metal corrosion, which will affect the lightning protection effect. The composite material needs to be destroyed during maintenance, and the maintenance cost is high.
At present, domestic research on lightning protection of composite materials is still in its infancy.

Method used

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  • Thunder and lightning protection surface film and production method thereof
  • Thunder and lightning protection surface film and production method thereof
  • Thunder and lightning protection surface film and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Take the metal grid 1 as a copper foil grid and the high resistance layer 3 as polyimide as an example.

[0042] A preparation method of a lightning protection surface film is specifically implemented according to the following steps:

[0043] Step 1. Surface treatment of metal mesh 1

[0044] Select a copper foil grid with a size of 100×1000×0.15mm, and the grid area accounts for 60% of the total area of ​​the copper foil grid. Clean the surface of the copper foil grid with alcohol, and then configure the coupling agent solution (coupling agent is determined by volume A mixture of KH550 with a concentration of 2% and analytical pure alcohol with a volume concentration of 98%), use a brush to gently brush the coupling agent solution on the surface of the copper foil grid, dry and stand at room temperature until the analytical pure alcohol The solution evaporates completely;

[0045] Step 2. Bond the metal grid 1 to the high-resistance layer 3

[0046] Fix the surface...

Embodiment 2

[0052] Take the metal grid 1 as an aluminum foil grid and the high-resistance layer 3 as polyester as an example.

[0053] A preparation method of a lightning protection surface film is specifically implemented according to the following steps:

[0054] Step 1. Surface treatment of metal mesh 1

[0055] Select an aluminum foil grid with a size of 100 × 1000 × 0.15mm, and the grid area accounts for 90% of the total area of ​​the aluminum foil grid. Clean the surface of the aluminum foil grid with alcohol, and then configure a coupling agent solution (the coupling agent has a volume concentration of 1 % KH550 and 99% analytically pure alcohol by volume), use a brush to gently brush the coupling agent solution on the surface of the aluminum foil grid, dry at room temperature and stand until the analytically pure alcohol solution is completely evaporated ;

[0056] Step 2. Bond the metal grid 1 to the high-resistance layer 3

[0057] Fix the surface-treated aluminum foil grid i...

Embodiment 3

[0063] Take the metal grid 1 as a copper foil grid and the high resistance layer 3 as polyethylene as an example.

[0064] A preparation method of a lightning protection surface film is specifically implemented according to the following steps:

[0065] Step 1. Surface treatment of metal mesh 1

[0066] Select a copper foil grid with a size of 100×1000×0.15mm, and the grid area accounts for 75% of the total area of ​​the copper foil grid. Clean the surface of the copper foil grid with alcohol, and then configure the coupling agent solution (the coupling agent is determined by volume). 1.5% KH550 and 98.5% analytically pure alcohol by volume), use a brush to lightly brush the coupling agent solution on the surface of the copper foil grid, dry and stand at room temperature until analytically pure The alcohol solution evaporates completely;

[0067] Step 2. Bond the metal grid 1 to the high-resistance layer 3

[0068] Fix the surface-treated copper foil grid in step 1 on the m...

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Abstract

The invention discloses a thunder and lightning protection surface film. The thunder and lightning protection surface film comprises a metal grid and a high resistance layer which are bonded through an adhesive, the meshes of the metal grid are full of the adhesive, the other surface of the high resistance layer is bonded with a surface adhesive film, and the surface adhesive film is covered with lining paper. The invention also discloses a production method of the thunder and lightning protection surface film. The thunder and lightning protection surface film combines a surface film with thunder and lightning protection performances, has the advantages of simple structure, low cost and use convenience, can improve the surface state of a composite material and provide good thunder and lightning protection performances for the composite material, can be widely applied in the fields of aviation, spaceflight and wind power generation, and can also be used as an electromagnetic shielding material.

Description

technical field [0001] The invention belongs to the technical field of lightning protection, in particular to a lightning protection surface film, and also relates to a preparation method of the above lightning protection film. Background technique [0002] Since the 1960s, with the rapid development of aerospace and aviation, the requirements for materials have become higher and higher. In order to meet the requirements of light weight and high strength, high-performance composite materials have attracted more and more attention. At present, composite materials are widely used in aerospace, aviation, wind power and other fields. The use of composite materials to replace traditional metal materials has become the development trend of the aviation industry. According to statistics, the amount of composite materials used in the U.S. "Global Hawk" UAV is about 65% of the total weight of the structure, and the proportion of composite materials used in Boeing B787 exceeds 50%. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/02B32B15/085B32B15/09B32B15/08B32B27/08B32B27/10B32B27/28B32B27/32B32B27/36B32B27/38B32B3/12B32B7/12B32B37/12
CPCB32B15/02B32B3/12B32B7/12B32B15/08B32B15/085B32B15/09B32B27/10B32B27/281B32B27/32B32B27/36B32B37/1284B32B2255/10B32B2255/26B32B2307/202B32B2571/00
Inventor 何征熊秀范晓宇黄虎
Owner XIAN AIRBORNE ELECTROMAGNETIC TECH