CN106833215A - A kind of unmanned plane that can reduce electromagnetic interference - Google Patents

A kind of unmanned plane that can reduce electromagnetic interference Download PDF

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CN106833215A
CN106833215A CN201710158238.0A CN201710158238A CN106833215A CN 106833215 A CN106833215 A CN 106833215A CN 201710158238 A CN201710158238 A CN 201710158238A CN 106833215 A CN106833215 A CN 106833215A
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unmanned plane
tio
component
composite material
absorbing coating
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不公告发明人
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Shanghai Chen Xiu Automation Technology Co Ltd
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Shanghai Chen Xiu Automation Technology Co Ltd
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/28—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/32—Radiation-absorbing paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
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    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
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    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

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Abstract

The application is related to a kind of unmanned plane that can reduce electromagnetic interference, the unmanned plane includes casing and the fuselage in casing, the casing is to be integrally formed using carbon fibre material, microwave absorbing coating is provided with the surface of casing, the microwave absorbing coating thickness is 0.8mm, the microwave absorbing coating includes component A and B component, and hollow glass micropearl trielement composite material is included in component A；Described microwave absorbing coating has adhesive force strong, good impact resistance and polishing machine is good, viscosity is high, density is small, lightweight, wave-sucking performance is strong characteristic.

Description

A kind of unmanned plane that can reduce electromagnetic interference
Technical field
The application is related to unmanned plane field, more particularly to a kind of unmanned plane that can reduce electromagnetic interference.
Background technology
With becoming increasingly popular for the development of microwave and mechanics of communication, particularly mobile communication, computer, household electrical appliance etc., Electromagnetic pollution becomes increasingly severe, and the electromagnetic wave of various frequencies is filled with an atmosphere.
Include the electronic equipment of precision in unmanned plane, electromagnetic wave can cause one for unmanned plane inner electronic equipment in air The interference of degree is determined, in order to prevent interference, generally by what is realized to target spraying microwave absorbing coating.
The content of the invention
Therefore, the present invention is intended to provide a kind of unmanned plane that can reduce electromagnetic interference, to solve problem set forth above.
Provide a kind of unmanned plane that can reduce electromagnetic interference in embodiments of the invention, the unmanned plane include casing and Fuselage in casing, the casing is to be integrally formed using carbon fibre material, and microwave absorbing coating is provided with the surface of casing；The suction Ripple coating layer thickness is 0.8mm；The microwave absorbing coating includes component A and B component；B component is biuret, and component A includes：Hydroxy Acid resin, CNT, trielement composite material, ceramic powder, silicone coupling agents, nano barium sulfate, nano titanium oxide, diformazan Benzene and butyl acetate mixture；The percentage by weight of each material is 1 in dimethylbenzene and butyl acetate mixture：1.
Preferably, the trielement composite material is a kind of hollow glass micropearl/TiO2/Fe3O4Structure, the trielement composite material It is core shell structure, with hollow glass micropearl as core, is coated with TiO outside it successively2Layer and Fe3O4Layer.
The technical scheme that embodiments of the invention are provided can include the following benefits：
Unmanned plane shell of the invention is provided with a kind of microwave absorbing coating, and the microwave absorbing coating is divided into two kinds of components, wherein in component A Comprising a kind of hollow glass micropearl/TiO2/Fe3O4Core-shell structure material, on the one hand, HGMs has cavity, the cavity is enabled to There is multipath reflection and multi-absorption in the electromagnetic wave of entrance, electromagnetic wave propagation path increases, so as to increased for electromagnetic wave Absorption intensity；On the other hand, it is provided with TiO on the surface of HGMs2Layer and Fe3O4Layer, TiO2And Fe3O4Magnetic material is, can As the dielectric loss layer and magnetically lossy layer of electromagnetic wave, absorption intensity of the enhancing to electromagnetic wave；In the third aspect, this ternary The core shell structure density that composite is formed is relatively low, can meet the requirement of unmanned plane lightweight.
The aspect and advantage that the application is added will be set forth in part in the description, and will partly become from the following description Substantially, or recognized by the practice of the application.It should be appreciated that the general description of the above and detailed description hereinafter are only It is exemplary and explanatory, the application can not be limited.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but embodiment in accompanying drawing is not constituted to any limit of the invention System, for one of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to the following drawings Other accompanying drawings.
Fig. 1 is the structural representation of unmanned plane shell of the present invention,
Fig. 2 is the structural representation of trielement composite material in the present invention.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment Described in implementation method do not represent and the consistent all implementation methods of the present invention.Conversely, they be only with it is such as appended The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Being related to a kind of unmanned plane that can reduce electromagnetic interference, the unmanned plane in the technical scheme of the application includes casing 1 And the fuselage in casing 1, the casing 1 is to be integrally formed using carbon fibre material, and a kind of suction ripple is provided with the surface of casing 1 Coating 2, with reference to Fig. 1.
To reduce electromagnetic interference, it is common practice to lay one layer of microwave absorbing coating in surface of shell, the microwave absorbing coating is one Kind of absorbing material, absorbing material refer to can absorb, the material of incident electromagnetic wave of decaying, and electromagnetic energy can be converted to heat by it Can or other forms energy and dissipate, or electromagnetic wave is disappeared because of interference.
For the technical scheme of the application, the microwave absorbing coating laid in unmanned plane casing outer surface can be produced in terms of two Effect：1. the incidence of electromagnetic wave can be reduced so that incident electromagnetic wave is as much as possible to enter into material internal；2. electromagnetism is worked as Ripple enter into absorbing material inside when, the microwave absorbing coating has good fade performance, by electromagnetic energy be heat energy or other The energy of form and dissipate so that the electromagnetic wave through microwave absorbing coating is tried one's best reduction.
In the technical scheme of the application, what the microwave absorbing coating 2 was realized in：
The microwave absorbing coating 2 includes component A and B component, and component A and B component should compare 15 according to weight:1 ratio uniform Mixing, obtains described microwave absorbing coating 2.
Wherein, B component is biuret；
Component A includes：Hydroxylated acrylic resin, CNT, trielement composite material, ceramic powder, silicone coupling agents, receive Nano-barium sulfate, nano titanium oxide, dimethylbenzene and butyl acetate mixture；Each material in dimethylbenzene and butyl acetate mixture Percentage by weight be 50%：50%；
Also, the percentage by weight of each material is respectively in component A：55%th, 10%, 11%, 5%, 4%, 4%, 6%, 5%.
Further, the preparation process of microwave absorbing coating 2 described above is：
Step a, placement 25h is stand-by after trielement composite material, CNT silicone coupling agents are fully soaked, and obtains Mixture；
Step b, by Hydroxylated acrylic resin, ceramic powder, nano titanium oxide, nano barium sulfate, dimethylbenzene and acetic acid fourth Ester admixture mixes, and it is distributed to less than 10 μm with ultrasonication, obtains intermediate；
Step c, the mixture soaked in step a is added in the intermediate after disperseing in step b, then uses dispersion machine Under 900r/min, disperse 2h, obtain component A；
Step d, 15 are compared by obtained component A and B component according to weight:1 ratio uniform mixing, obtains microwave absorbing coating 2.
The microwave absorbing coating 2 has strong adhesive force, good impact resistance and the good viscosity of polishing machine characteristic high, is applied to Unmanned plane casing 1 is coated on, it is strong with the binding ability of casing 1, difficult for drop-off；
Especially, due to the addition of trielement composite material, the spy that microwave absorbing coating density is small, lightweight for this, wave-sucking performance is strong Property.
Above-described trielement composite material, specially a kind of hollow glass micropearl/TiO2/Fe3O4Structure, reference picture 2, The trielement composite material is core shell structure, with hollow glass micropearl 21 as core, is coated with TiO outside it successively222 and Fe of layer3O4 Layer 23.
Wherein, hollow glass micropearl (HGMs) is a kind of hollow, lightweight, even-grained spheric granules, with high temperature resistant, The characteristic such as corrosion-resistant, adiabatic, insulation, stable chemical nature, intensity is high, HGMs is used frequently as the filler of composite, can The density of matrix is reduced, itself does not have absorbing property, generally in one layer of its Surface coating or several layers of wave absorbing agents, is managed The lightweight composite wave-suction material thought.
In the trielement composite material of technical scheme, TiO is coated with successively on the surfaces of HGMs 21222 He of layer Fe3O4Layer 23, wherein, on the one hand, there is cavity in HGMs, the cavity enables to the electromagnetic wave for entering that multipath reflection and occurs more Reabsorption, electromagnetic wave propagation path increases, so as to increased the absorption intensity for electromagnetic wave；On the other hand, HGMs's Surface is provided with TiO2Layer and Fe3O4Layer, TiO2And Fe3O4Magnetic material is, can be as the dielectric loss of electromagnetic wave layer and magnetic Depletion layer, absorption intensity of the enhancing to electromagnetic wave；In the third aspect, the core shell structure density that this trielement composite material is formed compared with It is low, the requirement of unmanned plane lightweight can be met.
The preparation of above-mentioned trielement composite material includes following process：
Step 1, cleaning：First, HGMs is washed, filters out a diameter of 80 μm, the product that wall thickness is 2 μm, placed 30min is kept in 0.5M NaOH solutions, to remove surface impurity, is then washed, then dry for standby；
Step 2, coats TiO2Layer 22：First, the ethanol solution containing HGMs is prepared, then by butyl titanate and diethyl Hydramine is added drop-wise in the ethanol solution so that tetrabutyl titanate hydrolysis produce TiO2, then obtain HGMs/ in 850 DEG C of annealing 3h TiO2Binary composite；
Step 3, coats Fe3O4Layer 23：Take the above-mentioned HGMs/TiO of 20g2, 12g NaOH, 25ml Fe (CO)5, 400ml ethanol Amine, 30ml hydrazine hydrates (85%) are added in the anti-reactor of stainless steel, and 10~15h is incubated at 160 DEG C, naturally cool to room temperature, Black precipitate is obtained, is cleaned up, trielement composite material is obtained after drying.
For above-mentioned preparation process, in mode is preferably carried out, TiO in the trielement composite material2Content X and Fe3O4 Content Y performance be set to：
1.5X=Y,
Under the restriction of above-mentioned relation formula, the microwave absorbing coating thickness for setting unmanned plane shell is 0.8mm, compared for difference TiO2Content under the absorbing property of the unmanned plane shell microwave absorbing coating for 1GHz, such as following table：
Test wave frequency：1GHz
X (%) 15 18 21 24 27 30
Absorbing property (dB) 28 35 39 37 34 21
It can be seen that, in the case of the microwave absorbing coating thickness of unmanned plane shell is for 0.8mm, with TiO2The increase of content, Absorbing property of the microwave absorbing coating for 1GHz show as first rising after downward trend, especially, in TiO2With Fe3O4Content point Wei not be in the case of 21%, 31.5%, maximum wave-sucking performance reaches 39dB.
Preferred mode of the invention is the foregoing is only, is not intended to limit the invention, it is all in spirit of the invention and former Within then, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims (7)

1. a kind of unmanned plane that can reduce electromagnetic interference, the unmanned plane includes casing and the fuselage in casing, its feature It is that the casing is to be integrally formed using carbon fibre material, microwave absorbing coating is provided with the surface of casing；The microwave absorbing coating thickness is 0.8mm；The microwave absorbing coating includes component A and B component；B component is biuret, and component A includes：Hydroxylated acrylic resin, carbon are received Mitron, trielement composite material, ceramic powder, silicone coupling agents, nano barium sulfate, nano titanium oxide, dimethylbenzene and acetic acid fourth Ester admixture；The percentage by weight of each material is 1 in dimethylbenzene and butyl acetate mixture：1.
2. unmanned plane as claimed in claim 1, it is characterised in that component A and B component compare 15 according to weight:1 ratio uniform Mixing, obtains described microwave absorbing coating.
3. unmanned plane as claimed in claim 2, it is characterised in that the percentage by weight of each material is respectively in component A： 55%th, 10%, 11%, 5%, 4%, 4%, 6%, 5%.
4. unmanned plane as claimed in claim 1, it is characterised in that the trielement composite material be a kind of hollow glass micropearl/ TiO2/Fe3O4Structure, the trielement composite material is core shell structure, with hollow glass micropearl as core, is coated with successively outside it TiO2Layer and Fe3O4Layer.
5. unmanned plane as claimed in claim 4, it is characterised in that Fe in the trielement composite material3O4Content be TiO2Content 1.5 times.
6. unmanned plane as claimed in claim 5, it is characterised in that TiO in the trielement composite material2、Fe3O4Content successively It is 21%, 31.5%.
7. unmanned plane as claimed in claim 6, it is characterised in that the preparation of the trielement composite material includes following process：
Step 1, cleaning：First, HGMs is washed, filters out a diameter of 80 μm, the product that wall thickness is 2 μm, be placed on 30min is kept in 0.5M NaOH solutions, to remove surface impurity, is then washed, then dry for standby；
Step 2, coats TiO2Layer：First, the ethanol solution containing HGMs is prepared, then butyl titanate and diethanol amine is dripped It is added in the ethanol solution so that tetrabutyl titanate hydrolysis produce TiO2, then obtain HGMs/TiO in 850 DEG C of annealing 3h2Binary Composite；
Step 3, coats Fe3O4Layer：Take the above-mentioned HGMs/TiO of 20g2, 12g NaOH, 25ml Fe (CO)5, 400ml monoethanolamines, 30ml hydrazine hydrates (85%) are added in the anti-reactor of stainless steel, and 10~15h is incubated at 160 DEG C, naturally cool to room temperature, are obtained Black precipitate, is cleaned up, and trielement composite material is obtained after drying.
CN201710158238.0A 2017-03-16 2017-03-16 A kind of unmanned plane that can reduce electromagnetic interference Pending CN106833215A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107360707A (en) * 2017-07-19 2017-11-17 深圳源广安智能科技有限公司 A kind of wave-absorber structure comprising grapheme material
CN108928481A (en) * 2018-07-05 2018-12-04 武汉捷特航空科技有限公司 A kind of unmanned plane stealthy system automatically
CN109486317A (en) * 2018-10-09 2019-03-19 淮北市硕华机械设备有限公司 A kind of coating for metal surfaces and its preparation process
CN111153440A (en) * 2019-12-31 2020-05-15 陕西斯瑞新材料股份有限公司 Fe for improving thermal emissivity3O4Preparation method and application of coating

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103007957A (en) * 2012-11-21 2013-04-03 嘉兴学院 Method for preparing modified hollow glass beads with magnetism and photocatalytic activity
CN103013256A (en) * 2012-12-24 2013-04-03 青岛宣威涂层材料有限公司 Invisible coating material and preparation method thereof
CN103214907A (en) * 2013-03-14 2013-07-24 湖北大学 Aqueous microwave absorbing anticorrosion protection paint and preparation method thereof
CN106046985A (en) * 2016-07-13 2016-10-26 温州雏鹰科技有限公司 Coating for unmanned aerial vehicle and preparation method of coating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103007957A (en) * 2012-11-21 2013-04-03 嘉兴学院 Method for preparing modified hollow glass beads with magnetism and photocatalytic activity
CN103013256A (en) * 2012-12-24 2013-04-03 青岛宣威涂层材料有限公司 Invisible coating material and preparation method thereof
CN103214907A (en) * 2013-03-14 2013-07-24 湖北大学 Aqueous microwave absorbing anticorrosion protection paint and preparation method thereof
CN106046985A (en) * 2016-07-13 2016-10-26 温州雏鹰科技有限公司 Coating for unmanned aerial vehicle and preparation method of coating

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107360707A (en) * 2017-07-19 2017-11-17 深圳源广安智能科技有限公司 A kind of wave-absorber structure comprising grapheme material
CN108928481A (en) * 2018-07-05 2018-12-04 武汉捷特航空科技有限公司 A kind of unmanned plane stealthy system automatically
CN109486317A (en) * 2018-10-09 2019-03-19 淮北市硕华机械设备有限公司 A kind of coating for metal surfaces and its preparation process
CN111153440A (en) * 2019-12-31 2020-05-15 陕西斯瑞新材料股份有限公司 Fe for improving thermal emissivity3O4Preparation method and application of coating
CN111153440B (en) * 2019-12-31 2022-04-22 陕西斯瑞新材料股份有限公司 Fe for improving thermal emissivity3O4Preparation method and application of coating

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Application publication date: 20170613