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Lightweight shield shelter wallboard with infrared stealth function and preparation method thereof

A bulkhead panel and functional technology, applied in chemical instruments and methods, shielding materials, magnetic field/electric field shielding, etc., can solve the problems that are difficult to meet the requirements of high shielding shelters, high structural foam density, and does not involve infrared stealth

Active Publication Date: 2018-07-13
ZHEJIANG SAINTYEAR ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese utility model patent "An Electromagnetic Shielding Shelter Panel" (Application No.: 201620442853.5) discloses a method for preparing a lightweight shelter panel, using carbon fiber or aramid fiber and metal shielding material interlayer to prepare inner and outer skins instead of Traditional aluminum alloy skin, this method can achieve the purpose of light weight, but still has low shielding performance, it is difficult to meet the requirements of high shielding shelters; Chinese utility model patent "a lightweight shelter panel" (application number: 201520923580.1) Low-density PVC structural foam is used as the structural foam in the middle of the cabin wall to achieve lightweight purposes, but the structural foam density is still high, and none of the currently disclosed technologies involves the function of infrared stealth

Method used

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  • Lightweight shield shelter wallboard with infrared stealth function and preparation method thereof

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preparation example Construction

[0044] The present invention provides a method for preparing a shielded shelter panel with infrared stealth function described in the above technical solution, comprising the following steps:

[0045] The honeycomb core material coated with the temperature control coating, the first panel coated with the temperature control coating and the second panel coated with the temperature control coating are bonded to obtain a shielding party with infrared stealth function. bulkhead plating;

[0046] Both the first panel layer and the second panel layer include multiple layers of surface metallized fiber fabrics.

[0047] In the present invention, the honeycomb core material layer whose surface is coated with a temperature control coating is preferably prepared according to the following method:

[0048] The fiber raw paper coated with the temperature-control coating on the surface is glued, laminated, hot-pressed, stretched, dipped and cured to obtain a honeycomb core material layer ...

Embodiment 1

[0066] (1) Copper and nickel are plated on the surface of carbon fiber filaments by electroless plating, the thickness of the copper plating layer is 2 μm, and the thickness of the nickel layer is 0.5 μm;

[0067] (2) Each bundle containing 1000 carbon fiber filaments is bidirectionally alternately woven into a plain weave bidirectional 1K carbon fiber fabric;

[0068] (3) The carbon fiber fabric in step (2) is impregnated with epoxy resin, and then the multi-layer carbon fiber prepreg is laid on the flat mold by hand lay-up process. After curing and molding, the required first panel and second panel are obtained by demolding , the curing temperature is 130°C, the curing time is 90min, and the thickness of the first panel and the second panel are both 1mm;

[0069] (4) The surface of the panel prepared above is polished, and the temperature control coating is coated on the surface by spraying process. The temperature control coating includes paraffin and SiO with a mass ratio ...

Embodiment 2

[0075] (1) Deposit metal copper on the surface of twill carbon fiber and glass fiber fabric by vacuum evaporation process, the thickness of the metal copper layer is 100nm, and then electroplate metal nickel, the thickness of the metal nickel layer is 2 μm;

[0076] (2) Impregnating metallized carbon fiber fabrics and glass fiber fabrics with polyimide resin, then laying a layer of metallized carbon fiber fabrics and metallized glass fiber fabrics alternately on a flat mold, and then demoulding after vacuum bag pressure curing to obtain For the required first and second panels, the curing temperature is 150°C, the curing time is 90 minutes, and the thickness of the first and second panels are both 1.2mm;

[0077] (3) Both the first panel and the second panel prepared above are subjected to surface grinding treatment, and the surface is coated with a temperature-controlling coating using a scraping process, and the temperature-controlling coating includes a mass ratio of 8:15:55...

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Abstract

The invention provides a lightweight shield shelter wallboard with an infrared stealth function and a preparation method thereof. The shelter wallboard comprises a honeycomb core material layer, a first front panel layer and a second front panel layer, wherein the first front panel layer and the second front panel layer are arranged on the upper side and the lower side of the of honeycomb core material layer; the surface of the honeycomb core material layer, the surface of the first front panel layer and the surface of the second front panel layer are coated with temperature control coatings correspondingly; and the first front panel layer and the second front panel layer each comprise a plurality of layers of surface metallized fiber fabrics. By arranging the temperature control coatingsand the surface metallized fiber fabrics in the shelter wallboard, the shelter wallboard has the infrared stealth function and high shield performance. Compared with the prior art, metal front panelsare replaced with the front panel layers prepared from the surface metallized fiber fabrics, and thus, the weight of the shelter wallboard is low. The experiment result shows that the electromagneticshielding effectiveness of the shield shelter wallboard is greater than 50 dB in 150 kHz to 1.5 GHz electromagnetic fields; and the surface infrared radiation energy of the shield shelter wallboard islower than or equal to 100 W / m<2> at the surface temperature of 20-70 DEG C.

Description

technical field [0001] The invention relates to an electromagnetic shielding shelter wall plate, in particular to a lightweight shielding shelter wall plate with an infrared stealth function and a preparation method thereof. Background technique [0002] The shelter has excellent protection performance and transportation flexibility. In recent years, it has been widely used in weapon systems, command centers, electronic countermeasures, field service and medical support systems, and electromagnetic shielding provides guarantee for the smooth completion of tasks of the shelter. [0003] The wall panel is an important component of the shelter. The traditional electromagnetic shielding shelter wall panel is generally made of aluminum alloy plate and low-density polyurethane rigid foam board. The shelter made of this structure has the disadvantages of heavy weight and electromagnetic shielding. The problem of poor performance. Chinese utility model patent "An Electromagnetic Sh...

Claims

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Application Information

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IPC IPC(8): F41H3/00H05K9/00B32B3/12B32B9/00B32B9/06B32B9/04B32B29/02B32B17/02B32B17/12B32B27/02B32B27/34B32B27/12B32B7/12B32B33/00B32B37/12B32B37/10B32B37/06
CPCB32B3/12B32B5/02B32B5/26B32B7/12B32B9/007B32B9/047B32B9/06B32B17/067B32B27/12B32B27/34B32B29/02B32B33/00B32B37/06B32B37/10B32B37/12B32B2255/02B32B2255/12B32B2255/20B32B2262/0269B32B2262/101B32B2262/106B32B2307/212B32B2307/718B32B2571/00F41H3/00H05K9/009
Inventor 刘学超董庆文
Owner ZHEJIANG SAINTYEAR ELECTRONICS TECH
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