CN109263186A - A kind of method for shaping of stealthy glass - Google Patents

A kind of method for shaping of stealthy glass Download PDF

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Publication number
CN109263186A
CN109263186A CN201811209788.1A CN201811209788A CN109263186A CN 109263186 A CN109263186 A CN 109263186A CN 201811209788 A CN201811209788 A CN 201811209788A CN 109263186 A CN109263186 A CN 109263186A
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layer
protective layer
thickness
glass
transition
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CN201811209788.1A
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CN109263186B (en
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黄友奇
吴志远
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BEIJING HANGBO NEW MATERIAL TECHNOLOGY Co Ltd
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BEIJING HANGBO NEW MATERIAL TECHNOLOGY Co Ltd
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    • B32B17/064—
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23—Oxides
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/23—Mixtures
    • C03C2217/231—In2O3/SnO2

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

The application provides a kind of method for shaping of stealthy glass, comprising: the thickness D of the First Transition layer is determined according to the thickness of preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer and second protective layer；Determine the thickness and dielectric constant of each layer transparent medium of composition First Transition layer.The method for shaping of stealthy glass provided by the present application can determine the thickness of First Transition layer in stealthy glass according to the demand actually equipped, and stealthy glass is enabled to reach the Stealth of respective degrees, meet the application demand of different equipments.

Description

A kind of method for shaping of stealthy glass
Technical field
This application involves ELECTROMAGNETIC RADIATION REFLECTION technical field is reduced, more particularly to a kind of method for shaping of stealthy glass.
Background technique
In certain application circumstances, especially in the application environment of battlefield, equipment needs to have with Stealth Having reduces the characteristic found by enemy radar and carrying out particular procedure to hostile electromagnetic wave；And it is (special in largely equipment It is not in personnel's operating equipment), in order to allow the operator to environment of observation and operating equipment, equipment is needed with light transmission features Windowpane.
It is found characteristic by radar and is met to meet the requirements of specific light transmission features to reach to reduce simultaneously, aforesaid devices Glass in windowpane does particularization processing more, and specific processing mode has following two: (1) leading glass surface coating is transparent Conductive film cooperates overall construction design by incident reflection of radar wave to unrelated direction；The method avoids electromagnetism wave direction hairs The reflection in the direction She Yuan has good Stealth to single base station radar detection, and have wideband is stealthy, thickness controllably with And the characteristic that the visual field is good.But Stealth demand of such glass when being unable to satisfy more base station radar detections.(2) in glass Absorbing material particle is adulterated in ontology or adhesives, and the reflected intensity of electromagnetic wave is reduced using absorbing material；But in order to Reach specific reflection gain, the grey density characteristics of absorbing material need to reach particular demands, and this will substantially reduce the saturating of glass Light characteristic, so that the light transmission features of visible light reduce；And absorbing material itself is only able to achieve the absorption of special frequency channel electromagnetic wave, Namely glass is only able to achieve to the stealthy of special frequency channel radar.
Currently, the stealthy glass using metamaterial structure has been applied in the equipment of part, and it is configured to special Fixed thickness；But in practical application, the stealthy glass in different equipments needs to be arranged to different thickness, and currently adopts It mostly may be only configured to specific thickness with the stealthy glass of metamaterial structure, do not adapt to equipment Requirement.
Summary of the invention
The application provides a kind of method for shaping of stealthy glass, to solve the problems, such as that background technique refers to.
The application provides a kind of method for shaping of stealthy glass, wherein the stealthy glass includes that first set gradually prevents Sheath, metamaterial structure layer, First Transition layer, reflection of radar wave layer and the second protective layer；The First Transition layer includes at least Layer of transparent medium；The described method includes:
According to preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer and institute The thickness for stating the second protective layer determines the thickness D of the First Transition layer；
Determine the thickness and dielectric constant of each layer transparent medium of composition First Transition layer, so that
Wherein: n is positive integer, and N is 0 or positive integer, dnFor the n-th layer transparent medium for forming the First Transition layer Thickness, εrnFor the dielectric constant of the n-th layer transparent medium of the composition First Transition layer, f is to penetrate the Meta Materials dielectric layer Electromagnetic wave frequency, c is electromagnetic wave spread speed in a vacuum.
Optionally, the stealthy glassy layer includes the far from first protective layer side positioned at second protective layer Three protective layers；
It is described according to preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer The thickness of the First Transition layer is determined with the thickness of second protective layer, comprising:
According to the preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave The thickness of layer, second protective layer and the third protective layer determines the thickness of the First Transition layer.
Optionally, the stealthy glass includes the second mistake between second protective layer and the third protective layer Cross layer；
It is described according to preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer The thickness of the First Transition layer is determined with the thickness of second protective layer, comprising:
According to the preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave The thickness of layer, second protective layer, the third protective layer and second transition zone determines the thickness of the First Transition layer Degree.
Optionally, first protective layer is one of silicate glass, quartz glass；Second protective layer is silicon Silicate glass, quartz glass, polymethyl methacrylate, PET, polyethylene naphthalate, polycarbonate, poly-succinic second One of diol ester, polyimides, polyphthalamide.
Optionally, the transparent medium includes polyurethanes, thermoplastic polyurethane, polyvinyl butyral, poly- second One or more of alkene sulfuric acid, ethylene-vinyl acetate copolymer and SGP.
Optionally, the transparent medium includes vacuum, dry air or inert gas.
Optionally, the transparent medium includes film, glass and gas or vacuum.
Optionally, the third protective layer includes unorganic glass monolithic, toughened glass, laminated glass, hollow glass, vacuum The one or more of glass, organic material plate, function pad pasting etc..
Optionally, second transition zone includes polyurethanes, thermoplastic polyurethane, polyvinyl butyral, gathers One or more of oxyethylene sulfate, ethylene-vinyl acetate copolymer and SGP
The application provides the method for shaping of another stealthy glass, wherein the stealthy glass includes set gradually One protective layer, metamaterial structure layer, First Transition layer, the second protective layer and reflection of radar wave layer；The First Transition layer includes At least one layer of transparent medium；The described method includes:
According to preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer and institute The thickness for stating the second protective layer determines the thickness D of the First Transition layer；
Determine the thickness and dielectric constant of each layer transparent medium of composition First Transition layer, so that
Wherein: n is positive integer, and N is 0 or positive integer, dnFor the n-th layer transparent medium for forming the First Transition layer Thickness, εrnFor the dielectric constant of the n-th layer transparent medium of the composition First Transition layer, E is the thickness of the second protective layer, εrE For the dielectric constant of the second protective layer, f is the frequency through the electromagnetic wave of the Meta Materials dielectric layer, and c is electromagnetic wave in vacuum Spread speed under state.
The method for shaping of stealthy glass provided by the present application can determine the first mistake in stealthy glass according to the demand of equipment The thickness of layer is crossed, and stealthy glass is enabled to reach the Stealth of respective degrees, meets the application preparation need of different equipments It asks.
Detailed description of the invention
Fig. 1 is the schematic cross-section of stealthy glass provided by the embodiments of the present application；
Fig. 2 is the method for shaping flow chart of stealthy glass provided by the embodiments of the present application；
Fig. 3 is the schematic cross-section for the stealthy glass that another embodiment of the application provides；
Fig. 4 is the schematic cross-section for the stealthy glass that the application another embodiment provides；
The first protective layer of 11-, 12- metamaterial structure layer, 13- First Transition layer, 14- reflection of radar wave layer, 15- second are anti- Sheath, the second transition zone of 16-, 17- third protective layer.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to Convenient for description, part relevant to related invention is illustrated only in attached drawing.
Fig. 1 is the schematic cross-section of stealthy glass provided by the embodiments of the present application.As shown in Figure 1, the embodiment of the present application mentions The stealthy glass supplied includes the first protective layer 11, the second protective layer 15 positioned inside positioned at outside, and is folded in first Metamaterial structure layer 12, First Transition layer 13 and reflection of radar wave layer 14 between protective layer 11 and the second protective layer 15.It is aforementioned Each layer of structure be light transmission layer structure.
Specifically, the medial surface of the first protective layer 11 is arranged in metamaterial structure layer 12, the setting of reflection of radar wave layer 14 exists Medial surface of second protective layer 15 towards the first protective layer 11, First Transition layer 13 are arranged in metamaterial structure layer 12 and radar wave Between reflecting layer 14.
In practical application, when electromagnetic wave is after the first protective layer 11 is irradiated on metamaterial structure layer 12, pass through Metamaterial structure layer 12 and enter in First Transition layer 13, and reflected after being irradiated to reflection of radar wave layer 14.In order to make It obtains electromagnetic wave to be depleted in First Transition layer 13, the thickness needs of First Transition layer 13 are distinguishingly set, so that radar wave It can be lost by itself addition of waveforms.
And in practical application, for different equipments, the subsequent need of stealthy glass is simultaneously different, and wherein the first protection The material and thickness that layer 11 and the second protective layer 15 use only have several specific models, it is therefore desirable to according to equipment to stealthy The thickness requirement of glass adjusts the thickness of the First Transition layer 13 in stealthy glass, and it is aforementioned that First Transition layer 13 is met Loss requirement to radar wave.
Fig. 2 is the method for shaping flow chart of stealthy glass provided by the embodiments of the present application.As shown in Fig. 2, the application is implemented The method for shaping for the stealthy glass that example provides includes step S101-S102.
S101: according to preset thickness and the first protective layer 11, metamaterial structure layer 12, reflection of radar wave layer 14 and The thickness of two protective layers 15 determines the thickness D of First Transition layer 13.
Wherein, preset thickness is the specific thickness that equipment needs stealthy glass to reach.According to the structure of Fig. 1 it is found that Preset thickness is it is known that the first protective layer 11, metamaterial structure layer 12, the thickness of reflection of radar wave layer 14 and the second protective layer 15 are true In the case where fixed, it can determine the thickness D of First Transition layer 13.
S102: determining the thickness and dielectric constant of each layer transparent medium of composition First Transition layer 13, so that:
Wherein, n is positive integer, and N is 0 or positive integer, dnFor the n-th layer transparent medium for forming the First Transition layer 13 Thickness, εrnFor the dielectric constant of the n-th layer transparent medium of the composition First Transition layer 13, f is to be situated between through the Meta Materials The frequency of the electromagnetic wave of matter layer, c are the spread speed of electromagnetic wave under vacuum conditions.
According to wave principle, in order to enable electromagnetic wave is lost, after electromagnetic wave is reflected by reflection of radar wave layer 14, away from At 14 position M+1/4 wavelength location of reflection of radar wave layer, the waveform of incident electromagnetic wave and reflection electromagnetic wave is on the contrary, i.e. the two is sent out The counteracting of 1/2 wave has been given birth to, electromagnetic wave has also been allowed for and is cancelled.Therefore, the dielectric of the thickness of First Transition layer 13 and wherein medium is normal Number enables to electromagnetic wave that 1/2 counteracting occurs, it can realizes the loss of electromagnetic wave energy.
Wavelength X according to the transmission principle of electromagnetic wave, when electromagnetic wave transmits in transparent mediumnWith its permittivity εrnIt is in Inverse ratio, specifically, the bigger ε of the dielectric constant of transparent mediumrn, corresponding electromagnetic transmission rate v is slower；And electromagnetic wave is in difference Frequency in medium is constant, so according to electromagnetic wave spread speed c in a vacuum, the frequency of electromagnetic wave and transparent medium Permittivity εrnIt can determine wavelength X of the electromagnetic wave in transparent mediumn。
On the basis of the thickness of known aforementioned First Transition layer 13, in order to enable electromagnetic wave is sent out in First Transition layer 13 Raw 1/2 offsets, it can in the case where the dielectric constant of known, composition First Transition layer 13 different transparent mediums, leads to Cross the thickness for adjusting different transparent mediums so that composition First Transition layer 13 different transparent mediums thickness combine for D above-mentioned, and make electromagnetic wave when passing through First Transition layer 13 by M+1/4 wavelength (M is 0 or positive integer)；Because Electromagnetic wave after passing through First Transition layer 13 by M+1/4 wavelength, so electromagnetic wave passes through after being reflected by reflection of radar wave layer 14 N+1/2 wavelength is crossed, the characteristic of 1/2 wavelength loss above-mentioned is then generated.
The method for shaping of stealthy glass provided by the embodiments of the present application can determine stealthy glass according to the demand actually equipped The thickness of First Transition layer 13 in glass, and stealthy glass is enabled to reach the Stealth of respective degrees, meet different equipments Apply preparation demand.
In specific embodiment, First Transition layer 13 above-mentioned can be merely the transition zone of layer of transparent medium, can also be with It is be superimposed together by a variety of transparent mediums, transparent dielectric layer with multi-layer structure.
In order to enable the first protective layer 11 and the second protective layer 15 can preferably bond together, First Transition layer 13 is excellent Choosing is using the transition zone with good bonding characteristic.In concrete application, the transparent medium of First Transition layer 13 be can be including poly- Carbamate (polyurethane, PU), gathers thermoplastic polyurethane (Thermoplastic polyurethanes, TPU) Vinyl butyral (polyvinyl butyral, PVB), polyvinyl sulfuric acid (Polyvinyl Sulfate, PVS), ethylene-vinegar Sour ethylene copolymer (ethylene-vinyl acetate copolymer, EVA) either one of SGP (SentryGlasPlus) material or It is a variety of, to this application and it is not specifically limited.
Certainly, in other embodiments, First Transition layer 13 can also be not only the list that adhesives above-mentioned is formed Layer structure, can also be by the multilayered structure of the formation such as aforementioned at least one adhesives and unorganic glass, organic glass.
In addition, in other embodiments, if there is the knot of corresponding structural support intermediate functional layer and the first protective layer 11 Structure also can be used other layer of structure and substitute adhesive layer above-mentioned, such as can set chamber structure for First Transition layer 13； In the case where First Transition layer 13 is arranged to chamber structure, the inner cavity of chamber structure can be set to vacuum, can also be with Fill dry air or inert gas.
In the embodiment of the present application, metamaterial structure layer 12 can be the resonance knot for by special designing, having special shape Structure coating, structure plan therein are in periodic arrangement, and the pattern in practical application can be windmill-shaped pattern unit.In order to make Monolithic glass is capable of forming more uniform light transmission features, the metamaterial structure pattern of metamaterial structure layer 12 it is subtle Mechanism is designed according to the visual characteristic of human eye under normal circumstances so that human eye can not be identified in normal viewing distance it is therein Pattern.
In practical application, metamaterial structure layer 12 above-mentioned can use tin indium oxide (ITO), aluminium-doped zinc oxide (AZO), flourine deped silicon dioxide (FTO), silverskin, flexible micro-nano film, graphene film manufacture；In concrete application, using In the case where the materials such as ITO, AZO, FTO, silverskin, pattern unit therein can pass through physical etchings, chemical etching or machine The method production of tool grinding.
Continuing with referring to Fig. 1, in the embodiment of the present application, metamaterial structure layer 12 has been plated in the first protective layer 11 by painting Surface；It is contemplated that metamaterial structure layer 12 to be arranged in the surface of the first protective layer 11, the first protective layer 11 guarantor can use Metamaterial structure layer 12 is protected, the burn into for avoiding extraneous outer diameter from causing metamaterial structure layer 12 damages.
After glass provided by the embodiments of the present application is mounted on equipment, the first protective layer 11 is towards natural environment space；Consider The various corrosive environments and intense light irradiation ageing environment being likely to occur into actual application environment, the first protective layer 11 above-mentioned is preferably Using inorganic material glass manufacture, its in concrete application can be using silicate glass, quartz glass etc..
Continuing with referring to Fig. 1, in the embodiment of the present application, reflection of electromagnetic wave layer is arranged on the interior table of the second protective layer 15 Face, that is, the second surface of the protective layer 15 towards metamaterial structure layer 12 is set.Reflection of electromagnetic wave layer can be using oxidation Indium tin (ITO), aluminium-doped zinc oxide (AZO), flourine deped silicon dioxide (FTO), silverskin, flexible micro-nano film, graphene film, silver The materials production such as nano wire film, metal grate film, shielding silk screen.
In practical application, the second protective layer 15 can be silicate glass, quartz glass, polymethyl methacrylate (PMMA), PET (PET), polyethylene naphthalate (PEN), polycarbonate (PC), polyethylene glycol succinate (PES), poly- One of acid imide, polyphthalamide.It is contemplated that the second protective layer 15 have by reflection of electromagnetic wave layer and environment every From effect, avoid external environment from causing reflection of electromagnetic wave layer oxidation corrosion.
Fig. 3 is the schematic cross-section for the stealthy glass that another embodiment of the application provides.As shown in figure 3, the application's In another embodiment, stealthy glass treatment has the first protective layer 11 above-mentioned, the second protective layer 15, metamaterial structure layer It 12, further include being arranged in the second protective layer 15 far from 11 side of the first protective layer outside First Transition layer 13 and reflection of radar wave layer 14 Third protective layer 17.
Corresponding, in the method for shaping of stealthy glass shown in Fig. 3, abovementioned steps S101 is needed replacing as S103: root According to the first preset thickness, the first protective layer 11, metamaterial structure layer 12, reflection of radar wave layer 14, the second protective layer 15 and third The thickness of protective layer 17 determines the thickness D of First Transition layer 13.
With continued reference to Fig. 3, in another embodiment, also set up between the second protective layer 15 and third protective layer 17 Second transition zone 16, therefore aforementioned step S103 needs to be changed to S104: according to preset thickness and the first protective layer 11, Metamaterial structure layer 12, reflection of radar wave layer 14, the second protective layer 15, the thickness of third protective layer 17 and the second transition zone 16 are true Determine the thickness of First Transition layer 13.
It, can be according to the thickness and material class of the third protective layer 17 of the intensity requirement adaptability of glass in practical application Type, so that glass integrally reaches corresponding intensity requirement.In practical application, third protective layer 17 can for unorganic glass monolithic, The one or more of toughened glass, laminated glass, hollow glass, vacuum glass, organic material plate, function pad pasting etc..
In some embodiments of the application, third protective layer 17 uses unorganic glass monolithic, in order to enable unorganic glass list Piece can be bonded with the second protective layer 15, be additionally provided with the second transition zone between the second protective layer 15 at 17 layers of third protective layer 16；Wherein the second transition zone 16 is also transparent material layer.First Transition layer 13 as the aforementioned is similar, and the second transition zone 16 can be with Be polyurethanes (polyurethane, PU), thermoplastic polyurethane (Thermoplastic polyurethanes, TPU), polyvinyl butyral (polyvinyl butyral, PVB), polyvinyl sulfuric acid (Polyvinyl Sulfate, PVS), Ethylene-vinyl acetate copolymer (ethylene-vinyl acetate copolymer, EVA) or SGP (SentryGlasPlus) material, to this The application is simultaneously not specifically limited.
Fig. 4 is the schematic cross-section for the stealthy glass that the application another embodiment provides.As shown in figure 4, with aforementioned implementation Unlike example, in stealthy glass provided by the embodiments of the present application, the setting of reflection of radar wave layer 14 is separate in the second protective layer 15 The surface of first protective layer 11, corresponding, method and step S102 above-mentioned needs to be changed to S105:
Determine the thickness and dielectric constant of each layer transparent medium of composition First Transition layer 13, so that
Wherein: n is positive integer, and N is 0 or positive integer, dnFor the n-th layer transparent medium for forming the First Transition layer 13 Thickness, εrnFor the dielectric constant of the n-th layer transparent dielectric layer of the composition First Transition layer 13, E is the second protective layer 15 Thickness, εrEFor the dielectric constant of the second protective layer 15, f is through the frequency of the electromagnetic wave of the Meta Materials dielectric layer, and c is electromagnetism The spread speed of wave under vacuum conditions.
An introduction is done to according to several approved products of some possible example structure production of the application below.
First product
According to Fig. 1,11 first protective layer 11 of the first protective layer of the first product uses 1.6mm ultra-white float glass, the One protective layer, 11 first model lake layer inner surface has been coated with indium oxide layer tin thin film, and indium tin oxide films are carried out in processing and The windmill-shaped pattern unit of periodicity arrangement is formed, to form metamaterial structure layer 12；Wherein windmill-shaped pattern unit Unit size is 10mm*10mm.
Second protective layer 15 of the first product uses 1.0mm ultra-white float glass.And in 15 inner surface of the second protective layer One one-tenth indium tin oxide layer has been coated with as reflection of radar wave layer 14.
The First Transition layer 13 of first product uses the polyvinyl butyral film of 0.38mm.
The third protective layer 17 of first product uses 1.6mm ultra-white float glass, and the second transition zone 16 is using 0.38mm's Polyvinyl butyral film.
Under specific hot pressing condition, the first protective layer 11 and 15 strong bond of the second protective layer are one by First Transition layer 13 Second protective layer 15 and third protective layer 17 are consolidated strong bond in one, it is whole to form glass by body, the second transition zone 16.
According to the glass that above-mentioned parameter makes, glass overall thickness is 4.96mm；By test, to the X wave of forward entrance Section reflection of electromagnetic wave rate is greater than 10dB.
Second product
According to Fig. 1, the first protective layer 11 of the second product uses 1.6mm ultra-white float glass, in the first protective layer 11 Surface has been coated with indium oxide layer tin thin film, and carries out forming the wind of periodicity arrangement in processing to indium tin oxide films Vehicle pattern unit, to form metamaterial structure layer 12；Wherein the unit size of windmill-shaped pattern unit is 10mm*10mm.
Second protective layer 15 of the second product uses 1.6mm ultra-white float glass.And in the second protective layer 15 towards The surface of one protective layer 11 has been coated with one one-tenth indium tin oxide layer as reflection of radar wave layer 14.
The First Transition layer 13 of second product uses the polyvinyl butyral film of 2.28mm.
Under specific hot pressing condition, the first protective layer 11 and 15 strong bond of the second protective layer are one by First Transition layer 13 Body.
The second product overall thickness according to above-mentioned parameter production is 5.48mm；By test, to the X-band of forward entrance Reflection of electromagnetic wave rate is greater than 10dB.
Third product
According to Fig. 1, the first protective layer 11 of third product uses 1.6mm ultra-white float glass, in the first protective layer 11 Surface has been coated with indium oxide layer tin thin film, and carries out forming the wind of periodicity arrangement in processing to indium tin oxide films Vehicle pattern unit, to form metamaterial structure layer 12；Wherein the unit size of windmill-shaped pattern unit is 10mm*10mm.
Second protective layer 15 of third product uses 1.6mm ultra-white float glass.And in the second protective layer 15 towards The surface of one protective layer 11 has been coated with one one-tenth indium tin oxide layer as reflection of radar wave layer 14.
The First Transition layer 13 of third product uses a polyvinyl butyral piece of 0.38mm.
The third protective layer 17 of third product uses 2.0mm ultra-white float glass, and the second transition zone 16 is using 0.38mm's Polyvinyl butyral film.
Under specific hot pressing condition, the first protective layer 11 and 15 strong bond of the second protective layer are one by First Transition layer 13 Second protective layer 15 and third protective layer 17 are consolidated strong bond in one, it is whole to form glass by body, the second transition zone 16.
Third product overall thickness according to above-mentioned parameter production is 5.96mm；By test, to the X-band of forward entrance Reflection of electromagnetic wave rate is greater than 10dB.
4th product
According to Fig. 1, the first protective layer 11 of the 4th product uses 1.6mm ultra-white float glass, in the first protective layer 11 Surface has been coated with indium oxide layer tin thin film, and carries out forming the wind of periodicity arrangement in processing to indium tin oxide films Vehicle pattern unit, to form metamaterial structure layer 12；Wherein the unit size of windmill-shaped pattern unit is 10mm*10mm.
Second protective layer 15 of the 4th product uses 1.6mm ultra-white float glass.And in the second protective layer 15 towards The surface of one protective layer 11 has been coated with one one-tenth indium tin oxide layer as reflection of radar wave layer 14.
The First Transition layer 13 of 4th product uses the polyvinyl butyral film of 0.38mm.
The third protective layer 17 of 4th product uses 3.0mm ultra-white float glass, and the second transition zone 16 is using 0.38mm's Polyvinyl butyral film.
Under specific hot pressing condition, the first protective layer 11 and 15 strong bond of the second protective layer are one by First Transition layer 13 Second protective layer 15 and third protective layer 17 are consolidated strong bond in one, it is whole to form glass by body, the second transition zone 16.
Third product overall thickness according to above-mentioned parameter production is 6.96mm；By test, to the X-band of forward entrance Reflection of electromagnetic wave rate is greater than 10dB.
5th product
According to Fig. 1, the first protective layer 11 of the 5th product uses 3.0mm ultra-white float glass, in the first protective layer 11 Surface has been coated with indium oxide layer tin thin film, and carries out forming the square of periodicity arrangement in processing to indium tin oxide films Shape block pattern unit, to form metamaterial structure layer 12；Wherein the unit size of rectangular block pattern unit is 10.5mm*21mm.
Second protective layer 15 of the 5th product uses 2.0mm ultra-white float glass.And in 15 inner surface of the second protective layer One one-tenth indium tin oxide layer has been coated with as reflection of radar wave layer 14.
The First Transition layer 13 of third product uses the polyvinyl butyral of 0.38mm.The third protective layer of first product 17 use 2.0mm ultra-white float glass, and the second transition zone 16 uses the polyurethane sheet of 0.63mm.
Under specific hot pressing condition, the first protective layer 11 and 15 strong bond of the second protective layer are one by First Transition layer 13 Second protective layer 15 and third protective layer 17 are consolidated strong bond in one, it is whole to form glass by body, the second transition zone 16.
The 5th product overall thickness according to above-mentioned parameter production is 8.01mm；By test, to the X-band of forward entrance Reflection of electromagnetic wave rate is greater than 10dB.
By aforementioned five specific products it is found that thickness of glass provided by the embodiments of the present application is thick at least between 5-8mm Degree may be selected, and the glass of several thickness to the reflecting properties of X frequency range electromagnetic wave in 10dB or more.In addition, before passing through Embodiment is stated it is found that thickness of glass adjustment is mainly realized by First Transition layer 13 and the adjustment of the second transition zone 16；Wherein first Transition zone 13 and thickness adjustment are mainly determining in electromagnetic radiation characteristic design and simulation process, corresponding metamaterial structure layer 12 Types of patterns and size also determine simultaneously, also determine pattern machining accuracy, difficulty and product preparation process to a certain extent The degree of feasibility, the adjustment of this segment thickness is relatively smaller.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic Scheme, while should also cover in the case where not departing from foregoing invention design, it is carried out by above-mentioned technical characteristic or its equivalent feature Any combination and the other technical solutions formed.Such as features described above and disclosed herein but be not limited to similar functions Technical characteristic replaced mutually and the technical solution that is formed.

Claims (10)

1. a kind of method for shaping of stealthy glass, which is characterized in that the stealthy glass include the first protective layer set gradually, Metamaterial structure layer, First Transition layer, reflection of radar wave layer and the second protective layer；The First Transition layer includes at least one layer of saturating Bright medium；The described method includes:
According to preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer and described The thickness of two protective layers determines the thickness D of the First Transition layer；
Determine the thickness and dielectric constant of each layer transparent medium of composition First Transition layer, so that
Wherein: n is positive integer, and N is 0 or positive integer, dnFor form the First Transition layer n-th layer transparent medium thickness, εrnFor the dielectric constant of the n-th layer transparent medium of the composition First Transition layer, f is the electromagnetism through the Meta Materials dielectric layer The frequency of wave, c are electromagnetic wave spread speed in a vacuum.
2. the method for shaping of stealthy glass according to claim 1, it is characterised in that:
The stealthy glassy layer includes being located at third protective layer of second protective layer far from first protective layer side；
It is described according to preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer and institute The thickness for stating the second protective layer determines the thickness D of the First Transition layer, comprising:
According to the preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer, institute The thickness for stating the second protective layer and the third protective layer determines the thickness D of the First Transition layer.
3. the method for shaping of stealthy glass according to claim 2, it is characterised in that:
The stealthy glass includes the second transition zone between second protective layer and the third protective layer；
It is described according to preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer and institute The thickness for stating the second protective layer determines the thickness D of the First Transition layer, comprising:
According to the preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer, institute The thickness for stating the second protective layer, the third protective layer and second transition zone determines the thickness D of the First Transition layer.
4. the method for shaping of stealthy glass according to claim 1-3, it is characterised in that:
First protective layer is respectively one of silicate glass, quartz glass；
Second protective layer is silicate glass, quartz glass, polymethyl methacrylate, PET, poly- naphthalenedicarboxylic acid ethylene glycol One of ester, polycarbonate, polyethylene glycol succinate, polyimides, polyphthalamide.
5. the method for shaping of stealthy glass according to claim 1-3, it is characterised in that:
The transparent medium includes polyurethanes, thermoplastic polyurethane, polyvinyl butyral, polyvinyl sulfuric acid, ethylene- One or more of acetate ethylene copolymer and SGP.
6. the method for shaping of stealthy glass according to claim 1-3, it is characterised in that:
The transparent medium includes vacuum, dry air or inert gas.
7. the method for shaping of stealthy glass according to claim 1-3, it is characterised in that:
The transparent medium includes film, glass and gas or vacuum.
8. the method for shaping of stealthy glass according to claim 2 or 3, it is characterised in that:
The third protective layer includes unorganic glass monolithic, toughened glass, laminated glass, hollow glass, vacuum glass, You Jicai The one or more of flitch, function pad pasting etc..
9. the method for shaping of stealthy glass according to claim 3, it is characterised in that:
Second transition zone includes polyurethanes, thermoplastic polyurethane, polyvinyl butyral, polyvinyl sulfuric acid, second Alkene-one or more of acetate ethylene copolymer and SGP.
10. a kind of method for shaping of stealthy glass characterized by comprising
The stealthy glass includes the first protective layer set gradually, metamaterial structure layer, First Transition layer, the second protective layer and Reflection of radar wave layer；The First Transition layer includes at least one layer of transparent medium；The described method includes:
According to preset thickness and first protective layer, the metamaterial structure layer, the reflection of radar wave layer and described The thickness of two protective layers determines the thickness D of the First Transition layer；
Determine the thickness and dielectric constant of each layer transparent medium of composition First Transition layer, so that
Wherein: n is positive integer, and N is 0 or positive integer, dnFor form the First Transition layer n-th layer transparent medium thickness, εrnFor the dielectric constant of the n-th layer transparent medium of the composition First Transition layer, E is the thickness of the second protective layer, εrEIt is second The dielectric constant of protective layer, f be through the Meta Materials dielectric layer electromagnetic wave frequency, c be electromagnetic wave under vacuum conditions Spread speed.
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CN113097741A (en) * 2021-03-05 2021-07-09 宁波大学 Optically transparent broadband electromagnetic absorption structure with adjustable wave-absorbing amplitude

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CN104617400A (en) * 2015-02-02 2015-05-13 成都飞机工业（集团）有限责任公司 Embedded wave-absorption composite material structure
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CN113097741A (en) * 2021-03-05 2021-07-09 宁波大学 Optically transparent broadband electromagnetic absorption structure with adjustable wave-absorbing amplitude
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