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CN105751590A - Honeycomb sandwiched composite material with wave absorbing function and preparation method of honeycomb core composite material - Google Patents

Honeycomb sandwiched composite material with wave absorbing function and preparation method of honeycomb core composite material Download PDF

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Publication number
CN105751590A
CN105751590A CN201610115379.XA CN201610115379A CN105751590A CN 105751590 A CN105751590 A CN 105751590A CN 201610115379 A CN201610115379 A CN 201610115379A CN 105751590 A CN105751590 A CN 105751590A
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honeycomb
absorbing
wave
sheet
sandwich layer
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王翔
夏添
王钧
徐任信
段华军
蔡浩鹏
杨小利
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Wuhan University of Technology WUT
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Wuhan University of Technology WUT
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/08—Impregnating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties

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  • Laminated Bodies (AREA)

Abstract

本发明涉及具有吸波功能的蜂窝夹芯复合材料及其制备方法，其包括蜂窝夹芯层和分别置于蜂窝夹芯层上下两侧的面板层，所述的蜂窝夹芯层为由横向放置的一层或多层吸波蜂窝片及置于每两层所述吸波蜂窝片之间的夹板构成。本发明的效果主要体现在宽频吸收性、轻质、可成型大曲面。与电磁波的匹配厚度增大，吸波效果明显改善，在添加少量或不添加磁性吸波剂的情况下就可获得良好的电磁波吸收性能，兼具了轻质的特性，蜂窝经浸渍后在蜂窝壁上形成了一定的涂层厚度，也提升了蜂窝横向抗压性能，同时，可将不同蜂窝孔格边长的蜂窝芯组合使用，形成多层吸波蜂窝夹芯层，各层夹芯互相补充，发挥各尺寸蜂窝芯的吸波性，从而获得宽频吸波性。The invention relates to a honeycomb sandwich composite material with wave-absorbing function and a preparation method thereof, which comprises a honeycomb sandwich layer and panel layers placed on the upper and lower sides of the honeycomb sandwich layer respectively, and the honeycomb sandwich layer is placed horizontally One or more layers of wave-absorbing honeycomb sheets and a splint placed between every two layers of the wave-absorbing honeycomb sheets. The effect of the invention is mainly reflected in broadband absorption, light weight, and large curved surface that can be formed. The matching thickness with the electromagnetic wave is increased, and the absorbing effect is obviously improved. In the case of adding a small amount or no magnetic absorbing agent, good electromagnetic wave absorbing performance can be obtained, and it has the characteristics of light weight. A certain coating thickness is formed on the wall, which also improves the transverse compressive performance of the honeycomb. At the same time, honeycomb cores with different cell side lengths can be combined to form a multi-layer wave-absorbing honeycomb sandwich layer. In addition, the microwave absorption of honeycomb cores of various sizes can be used to obtain broadband microwave absorption.

Description

一种具有吸波功能的蜂窝夹芯复合材料及其制备方法A honeycomb sandwich composite material with wave-absorbing function and preparation method thereof

技术领域 technical field

本发明涉及吸波材料领域，具体地说，涉及一种具有吸波功能的蜂窝夹芯复合材料及其制备方法。 The invention relates to the field of wave-absorbing materials, in particular to a honeycomb sandwich composite material with wave-absorbing function and a preparation method thereof.

背景技术 Background technique

在高新技术引领社会发展的今天，各类电子电器设备的使用在给人们生产生活带来便利的同时，也造成了严重的电磁辐射污染。其不利影响涉及通讯中断、信息泄露等方面，甚至威胁到人类身体健康。发展吸波材料，利用材料的各种损耗机制将入射电磁波转化为热能等形式的能量，来有效的吸收削弱电磁波以达到治理电磁污染的目的，已成为材料科学的热点课题。人们在吸波材料的发展和应用发面已经做了大量工作。吸波材料可分为涂层型和结构型，蜂窝夹芯结构是结构型吸波材料的一种重要形式。蜂窝夹芯吸波材料作为一种特殊的复合材料结构，拥有比强度高、减震好、绝热佳等特点，其蜂芯连续多孔的结构也可以使电磁波在蜂窝夹芯层内多次吸收、反射和散射，而且纸蜂窝价格低廉，经济效益高。鉴于蜂窝芯材上述优点，蜂窝夹芯吸波材料不仅广泛应用于民用、建筑等领域，在航空、航天领域也占有重要地位。 Today, when high-tech leads social development, the use of various electronic and electrical equipment not only brings convenience to people's production and life, but also causes serious electromagnetic radiation pollution. Its adverse effects involve communication interruption, information leakage, etc., and even threaten human health. It has become a hot topic in material science to develop absorbing materials and use various loss mechanisms of materials to convert incident electromagnetic waves into heat energy and other forms of energy to effectively absorb and weaken electromagnetic waves to achieve the purpose of controlling electromagnetic pollution. People have done a lot of work in the development and application of absorbing materials. Absorbing materials can be divided into coating type and structural type, honeycomb sandwich structure is an important form of structural absorbing materials. As a special composite material structure, the honeycomb sandwich absorbing material has the characteristics of high specific strength, good shock absorption, and good heat insulation. The continuous porous structure of the honeycomb core can also make electromagnetic waves absorb multiple times in the honeycomb sandwich layer. Reflection and scattering, and the price of paper honeycomb is low, and the economic benefit is high. In view of the above advantages of honeycomb core materials, honeycomb sandwich core absorbing materials are not only widely used in civil and construction fields, but also occupy an important position in the fields of aviation and aerospace.

现有的大量投入使用的吸波蜂窝夹芯复合材料，都是将蜂窝芯纵向使用，即入射电磁波从蜂窝孔入射到蜂窝结构中。为了获得良好的吸收性和拓宽吸收频率，往往会添加大量磁性材料做吸波剂，并增加蜂窝芯材厚度，这样使材料重量大大增加，同时受限于蜂窝芯整体厚度，吸波蜂窝夹芯复合材料很难制成大的弯曲面，在实际应用中有一定的限制。 A large number of existing wave-absorbing honeycomb sandwich composite materials put into use use the honeycomb core longitudinally, that is, the incident electromagnetic wave is incident into the honeycomb structure from the honeycomb holes. In order to obtain good absorption and broaden the absorption frequency, a large amount of magnetic material is often added as a wave absorbing agent, and the thickness of the honeycomb core material is increased, which greatly increases the weight of the material, and is limited by the overall thickness of the honeycomb core. Composite materials are difficult to make large curved surfaces, and there are certain limitations in practical applications.

发明内容 Contents of the invention

本发明提供一种具有吸波功能的蜂窝夹芯复合材料，可以解决目前所使用的蜂窝夹芯吸波材料的一些问题，制备的蜂窝夹芯复合材料有良好的吸波性能、吸收频率宽、并具有比重轻、可成型较大曲面的特点。 The invention provides a honeycomb sandwich composite material with wave-absorbing function, which can solve some problems of currently used honeycomb sandwich wave-absorbing materials, and the prepared honeycomb sandwich composite material has good wave-absorbing performance, wide absorption frequency, And it has the characteristics of light specific gravity and large curved surface.

本发明解决上述技术问题所采用的技术方案是：一种具有吸波功能的蜂窝夹芯复合材料，其包括蜂窝夹芯层和分别置于蜂窝夹芯层上下两侧的面板层，所述的蜂窝夹芯层为由横向放置的一层或多层吸波蜂窝片及置于每两层所述吸波蜂窝片之间的夹板构成。 The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a honeycomb sandwich composite material with wave-absorbing function, which includes a honeycomb sandwich layer and panel layers respectively placed on the upper and lower sides of the honeycomb sandwich layer. The honeycomb sandwich layer is composed of one or more layers of wave-absorbing honeycomb sheets placed horizontally and a splint placed between every two layers of the wave-absorbing honeycomb sheets.

按上述方案，所述吸波蜂窝片是将蜂窝片浸于吸波胶液中制得，由此获得电磁波吸收性能。 According to the above scheme, the wave-absorbing honeycomb sheet is prepared by immersing the honeycomb sheet in the wave-absorbing glue, thereby obtaining electromagnetic wave absorption performance.

按上述方案，所述蜂窝片为芳纶纸蜂窝片，其蜂窝孔格形状为正六边形，所述蜂窝孔格边长为2～10mm，蜂窝层数为5～15层，(如附图1中，y轴方向蜂窝孔格数)，蜂窝高度可根据设计需要而定(如附图1中，z轴方向的蜂窝长度)。 According to the above scheme, the honeycomb sheet is an aramid paper honeycomb sheet, the shape of the honeycomb cell is a regular hexagon, the side length of the honeycomb cell is 2-10 mm, and the number of honeycomb layers is 5-15 layers, (as shown in the accompanying drawing 1, the number of honeycomb cells in the y-axis direction), and the height of the honeycomb can be determined according to the design requirements (as in accompanying drawing 1, the length of the honeycomb in the z-axis direction).

按上述方案，所述吸波胶液为胶黏剂、吸收剂、稀释剂和固化剂经混合配制而成，其中，所述胶黏剂为环氧树脂，所述吸收剂为导电炭黑、多壁纳米碳管和羰基铁粉中的一种或多种的混合，其添加量为胶黏剂质量的1％‐100％，所述稀释剂为环氧非活性稀释剂，其添加量为胶黏剂质量的10％‐20％，所述固化剂为改性脂肪胺固化剂，其添加量为胶黏剂质量的30％‐40％。 According to the above scheme, the wave-absorbing glue is prepared by mixing an adhesive, an absorbent, a diluent and a curing agent, wherein the adhesive is epoxy resin, and the absorbent is conductive carbon black, The mixture of one or more of multi-walled carbon nanotubes and carbonyl iron powder is added in an amount of 1%-100% of the adhesive mass, and the diluent is an epoxy inactive diluent, and the amount added is 10%-20% of the mass of the adhesive, the curing agent is a modified fatty amine curing agent, and its added amount is 30%-40% of the mass of the adhesive.

按上述方案，所述夹板为玻璃钢板。 According to the above scheme, the splint is a glass steel plate.

按上述方案，所述置于蜂窝夹芯层上下两侧的面板层，分别为玻璃钢板和合金铝板。 According to the above scheme, the panel layers placed on the upper and lower sides of the honeycomb sandwich layer are glass steel plates and alloy aluminum plates respectively.

本发明还提供上述具有吸波功能的蜂窝夹芯复合材料的制备方法，包括以下步骤： The present invention also provides a preparation method of the above-mentioned honeycomb sandwich composite material with wave-absorbing function, comprising the following steps:

S1将胶黏剂、吸收剂、稀释剂以及固化剂按配比混合制成吸波胶液； S1 Mix adhesive, absorbent, diluent and curing agent according to the ratio to make wave-absorbing glue;

S2将蜂窝片多次浸于步骤1)所制吸波胶液中以达到需要的浸渍厚度，得到吸波蜂窝片； S2 immersing the honeycomb sheet in the wave-absorbing glue prepared in step 1) several times to achieve the required impregnation thickness to obtain the wave-absorbing honeycomb sheet;

S3将吸波蜂窝片与夹板相间连接，层压成型，得到蜂窝夹芯层； S3 Connect the wave-absorbing honeycomb sheet and the plywood alternately, and laminate them to obtain the honeycomb sandwich layer;

S4在蜂窝夹芯层上下两侧各加一层面板，得到具有吸波功能的蜂窝夹芯复合材料。 S4 Add a layer of panels on the upper and lower sides of the honeycomb sandwich layer to obtain a honeycomb sandwich composite material with a wave-absorbing function.

本发明大幅改善了蜂窝夹芯复合材料的吸波性能，具有宽频吸波效果，比重轻，可成型复杂曲面，原材料价格低廉，制备方法简易，拥有广阔的应用前景。 The invention greatly improves the wave-absorbing performance of the honeycomb sandwich composite material, has a broadband wave-absorbing effect, has light specific gravity, can form complex curved surfaces, has low raw material prices, and has a simple preparation method and has broad application prospects.

本发明的蜂窝夹芯复合材料，通过浸渍过吸波剂的蜂窝芯材横向使用，即电磁波通过上侧面板后从蜂窝侧壁入射到蜂窝结构中(如附图1中y轴方向射入)。 The honeycomb sandwich composite material of the present invention is used horizontally through the honeycomb core material impregnated with wave-absorbing agent, that is, the electromagnetic wave is incident into the honeycomb structure from the side wall of the honeycomb after passing through the upper side panel (injection in the direction of the y-axis as shown in Figure 1) .

本发明的效果主要体现在宽频吸收性、轻质、可成型大曲面。蜂窝芯材通过浸渍含有吸收剂的吸波胶液，在蜂窝壁上形成电磁波损耗面，而使原本没有损耗的纸蜂窝具有独立吸波性，而蜂窝芯材横向使用时可以利用的有效损耗壁面积，相比于蜂窝纵向使用时有所增加，与电磁波的匹配厚度增大，吸波效果明显改善，在添加少量或不添加磁性吸波剂的情况下就可获得良好的电磁波吸收性能，兼具了轻质的特性，蜂窝经浸渍后在蜂窝壁上形成了一定的涂层厚度，也提升了蜂窝横向抗压性能，同时，可将不同蜂窝孔格边长的蜂窝芯组合使用，形成多层吸波蜂窝夹芯层，各层夹芯互相补充，发挥各尺寸蜂窝芯的吸波性，从而获得宽频吸波性。 The effect of the invention is mainly reflected in broadband absorption, light weight, and large curved surface that can be formed. The honeycomb core material is impregnated with absorbing glue to form an electromagnetic wave loss surface on the honeycomb wall, so that the original paper honeycomb without loss has independent wave absorption, and the effective loss wall can be used when the honeycomb core material is used horizontally. The area is increased compared with the longitudinal use of the honeycomb, and the matching thickness with the electromagnetic wave is increased, and the absorbing effect is significantly improved. A good electromagnetic wave absorbing performance can be obtained under the condition of adding a small amount or no magnetic absorbing agent. With the characteristics of light weight, after the honeycomb is impregnated, a certain coating thickness is formed on the honeycomb wall, which also improves the transverse compressive performance of the honeycomb. At the same time, the honeycomb cores with different cell side lengths can be combined to form multiple Layers of wave-absorbing honeycomb sandwich layers, each layer of sandwich core complements each other, exerts the wave-absorbing properties of honeycomb cores of various sizes, and thus obtains broadband wave-absorbing properties.

附图说明 Description of drawings

图1为本发明具有吸波功能的蜂窝夹芯复合材料的结构示意图。 Fig. 1 is a schematic structural view of the honeycomb sandwich composite material with wave-absorbing function of the present invention.

图2为实施例1的蜂窝夹芯复合材料的测试吸波性的反射率曲线； Fig. 2 is the reflectance curve of the test absorbing property of the honeycomb sandwich composite material of embodiment 1;

图3为实施例2的蜂窝夹芯复合材料的测试吸波性的反射率曲线。 Fig. 3 is the reflectance curve of the test wave absorption of the honeycomb sandwich composite material in Example 2.

具体实施方式 detailed description

为了更好地理解本发明，下面结合实施例进一步阐明本发明的内容，但本发明的内容不仅仅局限于下面的实施例。 In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples.

如图1，本发明所述一种具有吸波功能的蜂窝夹芯复合材料，包括横向放置的一层或多层吸波蜂窝片2，以及置于每两层所述吸波蜂窝片之间的夹板4构成蜂窝夹心层，所述的夹芯层上侧面板设置为玻璃钢板1，其下侧面板设置为合金铝板3。 As shown in Figure 1, a honeycomb sandwich composite material with wave-absorbing function described in the present invention includes one or more layers of wave-absorbing honeycomb sheets 2 placed horizontally, and placed between every two layers of wave-absorbing honeycomb sheets The plywood 4 constitutes a honeycomb sandwich layer, the upper side panel of the sandwich layer is set as a glass steel plate 1, and the lower side panel is set as an alloy aluminum plate 3.

实施例1 Example 1

在本实例中，蜂窝夹芯层规格、上下面板规格以及吸波胶液配比如下： In this example, the specifications of the honeycomb sandwich layer, the specifications of the upper and lower panels, and the ratio of the wave-absorbing glue are as follows:

蜂窝夹芯结构：芳纶纸蜂窝片，其蜂窝孔格形状为正六边形，孔格边长5.5mm，蜂窝层数10层；其上侧面板为环氧层压玻璃钢板，下侧面板为合金铝板，厚度为1-3mm；吸波胶液配比(按质量比)：环氧树脂100份，多壁纳米碳管2份，导电炭黑5份，环氧非活性稀释剂(丙酮)15份，改性胺35份。 Honeycomb sandwich structure: Aramid paper honeycomb sheet, the shape of the honeycomb cells is regular hexagonal, the cell side length is 5.5mm, and the number of honeycomb layers is 10; the upper side panel is epoxy laminated glass steel plate, and the lower side panel is Alloy aluminum plate with a thickness of 1-3mm; wave-absorbing glue ratio (by mass ratio): 100 parts of epoxy resin, 2 parts of multi-walled carbon nanotubes, 5 parts of conductive carbon black, epoxy inactive diluent (acetone) 15 parts, 35 parts of modified amines.

按以下工艺制备： Prepared according to the following process:

将环氧树脂、多壁碳纳米管、导电炭黑、环氧非活性稀释剂(丙酮)和改性脂肪胺按比例添加并混合均匀制成吸波胶液； Add epoxy resin, multi-walled carbon nanotubes, conductive carbon black, epoxy inactive diluent (acetone) and modified fatty amine in proportion and mix them uniformly to make wave-absorbing glue;

将芳纶纸蜂窝片浸于上述步骤中所制的吸波胶液中，浸渍3次，每次30秒，固化后裁剪成所需尺寸； Dip the aramid paper honeycomb sheet in the wave-absorbing glue prepared in the above steps, dip for 3 times, each time for 30 seconds, and cut it into the required size after curing;

将上述步骤中所制的吸波蜂窝片上下两侧分别胶粘上环氧层压玻璃钢板和合金铝板，干燥后得到具有吸波功能的蜂窝夹芯复合材料。 The upper and lower sides of the wave-absorbing honeycomb sheet produced in the above steps are respectively glued to epoxy laminated glass steel plate and alloy aluminum plate, and after drying, a honeycomb sandwich composite material with wave-absorbing function is obtained.

如图2所示，试样在2～18GHz范围内，优于‐10dB的有效吸收带宽为14.4GHz，在2GHz处有最小反射率‐18.4dB。 As shown in Figure 2, in the range of 2-18GHz, the sample has an effective absorption bandwidth of better than -10dB at 14.4GHz, and a minimum reflectivity of -18.4dB at 2GHz.

实施例2 Example 2

在本实例中，蜂窝夹芯层规格、上下面板规格、夹板规格以及吸波胶液配比如下： In this example, the specifications of the honeycomb sandwich layer, the specifications of the upper and lower panels, the specifications of the plywood and the ratio of the wave-absorbing glue are as follows:

蜂窝夹芯结构：芳纶纸蜂窝，孔格边长5.5mm，蜂窝层数8层；芳纶纸蜂窝，孔格边长2.75mm，蜂窝层数8层；上侧面板为环氧层压玻璃钢板，下侧面板为合金铝板，厚度为1-3mm；夹板为环氧层压玻璃钢板，厚度为1-3mm；吸波胶液配比(按质量比)：环氧树脂100份，多壁纳米碳管1份，羰基铁粉50份，环氧非活性稀释剂(丙酮)10份，改性脂肪胺30份。 Honeycomb sandwich structure: aramid paper honeycomb, cell side length 5.5mm, honeycomb layers 8 layers; aramid paper honeycomb, cell side length 2.75mm, honeycomb layer number 8 layers; upper side panel is epoxy laminated glass fiber reinforced plastic The lower side panel is made of alloy aluminum plate with a thickness of 1-3mm; the plywood is epoxy laminated glass steel plate with a thickness of 1-3mm; the proportion of wave-absorbing glue (by mass ratio): 100 parts of epoxy resin, multi-wall 1 part of carbon nanotube, 50 parts of carbonyl iron powder, 10 parts of epoxy inactive diluent (acetone), 30 parts of modified fatty amine.

按以下工艺制备： Prepared according to the following process:

将环氧树脂、多壁碳纳米管、羰基铁粉、环氧树脂稀释剂和改性胺按比例添加并混合均匀制成吸波胶液； Add epoxy resin, multi-walled carbon nanotubes, carbonyl iron powder, epoxy resin diluent and modified amine in proportion and mix them uniformly to make wave-absorbing glue;

将芳纶纸蜂窝片浸于所制的吸波胶液中，浸渍3次，每次30秒，固化后裁剪成所需尺寸； Dip the aramid paper honeycomb sheet into the prepared wave-absorbing glue, dip it 3 times, each time for 30 seconds, and cut it into the required size after curing;

将所制的2个规格的吸波蜂窝片分别胶粘于夹板两侧，层压成型，得到蜂窝夹芯层； Glue the prepared two specifications of wave-absorbing honeycomb sheets to both sides of the plywood respectively, and laminate them to obtain the honeycomb sandwich layer;

将所制的吸波蜂窝夹芯层上下两侧分别胶粘上环氧层压玻璃钢板和合金铝板，干燥后得到具有吸波功能的蜂窝夹芯复合材料。 The upper and lower sides of the prepared wave-absorbing honeycomb sandwich layer are respectively glued to epoxy laminated glass steel plate and alloy aluminum plate, and after drying, a honeycomb sandwich composite material with wave-absorbing function is obtained.

如图3所示，试样在2～18GHz范围内，优于‐12dB的有效吸收带宽为13.9GHz，在3.2GHz处有最小反射率‐14.5dB。 As shown in Figure 3, in the range of 2-18GHz, the sample has an effective absorption bandwidth of better than -12dB at 13.9GHz, and a minimum reflectivity of -14.5dB at 3.2GHz.

Claims (7)

1. one kind has the honeycomb sandwich composite inhaling wave energy, it includes cellular sandwich layer and be respectively placed in the panel layer of the upper and lower both sides of cellular sandwich layer, and described cellular sandwich layer is inhaled ripple honeycomb sheet by laterally disposed one or more layers and be placed in the clamping plate inhaled between ripple honeycomb sheet described in every two-layer and constitute.
2. according to claim 1 have the honeycomb sandwich composite inhaling wave energy, it is characterised in that: described suction ripple honeycomb sheet is to be dipped in honeycomb sheet in suction ripple glue to prepare.
3. according to claim 2 have the honeycomb sandwich composite inhaling wave energy, it is characterised in that: described honeycomb sheet is aramid paper honeycomb sheet, and its honeycomb hole lattice are shaped as regular hexagon, and the described honeycomb hole lattice length of side is 2～10mm, and the honeycomb number of plies is 5～15 layers.
4. according to claim 2 have the honeycomb sandwich composite inhaling wave energy, it is characterized in that: described suction ripple glue is adhesive, absorbent, diluent and firming agent are blended formulated, wherein, described adhesive is epoxy resin, described absorbent is conductive black, one or more mixing in multiple-wall carbon nanotube and carbonyl iron dust, its addition is 1% the 100% of adhesive quality, described diluent is epoxy non-activated thinner, its addition is 10% the 20% of adhesive quality, described firming agent is modified fatty amine curing agent, its addition is 30% the 40% of adhesive quality.
5. according to claim 1 have the honeycomb sandwich composite inhaling wave energy, it is characterised in that: described clamping plate are glass epoxy.
6. according to claim 1 have the honeycomb sandwich composite inhaling wave energy, it is characterised in that: described in be placed in the panel layer of the upper and lower both sides of cellular sandwich layer, respectively glass epoxy and alloy aluminium sheet.
7. the preparation method with the honeycomb sandwich composite inhaling wave energy described in claim 1, comprises the following steps:
Adhesive, absorbent, diluent and firming agent are mixed and made into suction ripple glue by proportioning by S1；
Honeycomb sheet is repeatedly dipped in step 1 by S2) in made suction ripple glue to reach the dipping thickness needed, obtain inhaling ripple honeycomb sheet；
S3 will inhale that ripple honeycomb sheet is alternate with clamping plate to be connected, laminated into type, obtain cellular sandwich layer；
S4 respectively adds a deck panels in the upper and lower both sides of cellular sandwich layer, obtains having the honeycomb sandwich composite inhaling wave energy.
CN201610115379.XA 2016-03-01 2016-03-01 Honeycomb sandwiched composite material with wave absorbing function and preparation method of honeycomb core composite material Pending CN105751590A (en)

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