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CN108314954A - A kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof - Google Patents

A kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof Download PDF

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Publication number
CN108314954A
CN108314954A CN201810224280.2A CN201810224280A CN108314954A CN 108314954 A CN108314954 A CN 108314954A CN 201810224280 A CN201810224280 A CN 201810224280A CN 108314954 A CN108314954 A CN 108314954A
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Prior art keywords
absorbing
preparation
wave
low
temperature setting
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CN201810224280.2A
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Chinese (zh)
Inventor
陈世明
陈悦颀
林逢润
张红雨
林时锟
林时锴
陈巧慧
陈亦恩
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Tiandong Haorun New Material Technology Co Ltd
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Tiandong Haorun New Material Technology Co Ltd
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Priority to CN201810224280.2A priority Critical patent/CN108314954A/en
Publication of CN108314954A publication Critical patent/CN108314954A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/32Radiation-absorbing paints
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/08Metals
    • C08K2003/0843Cobalt
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/08Metals
    • C08K2003/0862Nickel
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/08Metals
    • C08K2003/0893Zinc
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2265Oxides; Hydroxides of metals of iron
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The invention discloses a kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof, including the preparation method to include:Using modified epoxy as filmogen, diluent is added, is sufficiently stirred, 10 30min of ultrasonic disperse;Conducting polymer or montmorillonite nano-composite material and the nanometer ferrite Jing Guo coupling agent modified processing are added, stirred evenly, 10 30min of ultrasonic disperse is to get antiradar coatings.The low-temperature setting wave-absorbing and camouflage coating and preparation method thereof, due to using nano material as wave absorbing agent, the characteristics such as the nanometer size effect of nano material can be made full use of, realize the multiple scattering to electromagnetic wave and absorption, obtain low reflection, broadband, the wave-absorbing and camouflage coating that quality is small and thickness is thin;After it is coated on destination carrier, solidification can be completed by 30 60min in a low temperature of 50 80 DEG C, the microwave absorbing coating of acquisition can be in 2 18GHz band limits to the strong absorption of electromagnetic wave, and the reflectivity in the frequency range is all higher than 10dB, and reflectivity minimum reaches 27dB.

Description

A kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof
Technical field
The present invention relates to electromagnetic wave absorbing coating technical field, specially a kind of low-temperature setting wave-absorbing and camouflage coating and its system Preparation Method.
Background technology
The application form of absorbing material includes mainly coating-type absorbing materials and structural absorbing mater ials at present, and application type is inhaled Wave material, that is, antiradar coatings is that target surface is coated on after mixing radio-radar absorber with binder, solvent and auxiliary agent with shape At effective microwave absorbing coating, because coating-type absorbing materials it is easy for construction, it is at low cost, adapt to various external forms due to be used for the military and people Use facility.
Growing with modern detection techniques, traditional absorbing material cannot be satisfied the need of wide-band, antiradar reflectivity It wants, novel wave-absorbing material is given birth to therefrom, and nano material has because of characteristics such as its own nanometer size effect, large specific surface areas Absorbing property is good, low reflection, broadband, the advantage that quality is small and thickness is thin, thus be widely studied.
Ferrite has dielectric properties again as wave absorbing agent material, absorbing property from its existing ferrimagnetism, opposite Magnetic conductivity and relative conductivity are in plural form, can generate dielectric loss but also generate mangneto loss, therefore ferrite is inhaled Wave material has good microwave absorbing property, but since it is inorganic material, it is poor with the compatibility of resin matrix, cause Interface binding power is weak, and dispersion in the base is uneven, therefore can reduce the mechanical mechanics property of basis material, needs by table Face modification just can serve as absorber material.
Conducting high polymers object, as absorbing material of new generation, since conductivity is high, light, doped and undoped The environmental stability of state is good, easy preparation and at low cost and cause extensive concern, and the volume resistivity of material is smaller, and wave-absorbing effect is got over It is good, but the reduction of the resistivity of material increases the albedo of material, so that the electromagnetic wave of free space is difficult to enter material The inside of material cannot achieve the purpose that inhale wave, so we have proposed a kind of low-temperature setting wave-absorbing and camouflage coating and its preparation sides Method, in order to solve the problems, such as to propose among the above.
Invention content
The purpose of the present invention is to provide a kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof, to solve the above-mentioned back of the body The existing ferrite that scape technology proposes is inorganic material, poor with the compatibility of resin matrix, causes interface binding power weak, in base Dispersion in body is uneven, therefore can reduce the mechanical mechanics property of basis material;The volume resistance of conducting high polymers object Rate is smaller, and wave-absorbing effect is better, and the reduction of conducting high polymers object resistivity but increases the anti-of conducting high polymers object Ability is penetrated, so that the electromagnetic wave of free space is difficult to the inside into material, the problem of cannot achieving the purpose that inhale wave.
To achieve the above object, the present invention provides the following technical solutions:A kind of low-temperature setting wave-absorbing and camouflage coating and its system Preparation Method includes the following steps:
S1, using modified epoxy as filmogen, be added diluent, be sufficiently stirred, ultrasonic disperse 10-30min;
S2, conducting polymer or montmorillonite nano-composite material and nanometer ferrite Jing Guo coupling agent modified processing are added, It stirs evenly, ultrasonic disperse 10-30min is to get antiradar coatings.
Preferably, the modified epoxy in the S1 is carried out by modifying agent of mass fraction 20%-30% polyester resin Modified gained.
Preferably, the diluent in the S1 is ethyl alcohol.
Preferably, the conducting polymer in the S2 or montmorillonite nano-composite material wave absorbing agent are in acid condition and oxygen It in the presence of agent, is prepared by emulsion polymerization or in-situ polymerization, conducting polymer used in intercalation is polyaniline, polypyrrole Or any one in polythiophene.
Preferably, the purity of the montmorillonite in the S2 need to reach 95%.
Preferably, the smectite content in the composite material in the S2 is in 10%-15%.
Preferably, the modified Nano ferrite wave absorbing agent in the S2 is Ni-Zn ferrites or Co-Zn, and its internal Ni It is 1 with Zn molar ratios:1, and Co, Zn molar ratio are 1:1.
Preferably, at least one of described ferrite, grain diameter 30nm-80nm, coupling agent used is modified to it is Silane coupling agent, aluminate coupling agent, titanate coupling agent or fatty acid salt.
Compared with prior art, the beneficial effects of the invention are as follows:The low-temperature setting wave-absorbing and camouflage coating and preparation method thereof;
1. since using nano material, as wave absorbing agent, nanometer size effect, the quantum tunneling effect of nano material can be made full use of It answers, the characteristics such as large specific surface area, realizes the multiple scattering to electromagnetic wave and absorption, it is small and thick to obtain low reflection, broadband, quality Spend thin wave-absorbing and camouflage coating;
2. after it is coated on destination carrier, solidification, the microwave absorbing coating of acquisition can be completed by 30-60min in a low temperature of 50-80 DEG C Can be in 2-18GHz band limits to the strong absorption of electromagnetic wave, the reflectivity in the frequency range is all higher than 10dB, reflectivity minimum Reach -27dB.
Specific implementation mode
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the scope of protection of the invention.
The present invention provides a kind of technical solution:A kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof, including it is as follows Step:
S1, using modified epoxy as filmogen, be added diluent, be sufficiently stirred, ultrasonic disperse 10-30min;In S1 Modified epoxy, be to be modified gained by modifying agent of mass fraction 20%-30% polyester resin, the diluent in S1 is Ethyl alcohol, ethyl alcohol volatility is larger, can accelerate hardening time;
S2, conducting polymer or montmorillonite nano-composite material and nanometer ferrite Jing Guo coupling agent modified processing are added, It stirs evenly, ultrasonic disperse 10-30min is to get antiradar coatings;Conducting polymer or montmorillonite nano-composite material in S2 are inhaled Wave agent is prepared by emulsion polymerization or in-situ polymerization in the presence of acid condition and oxidant, conductive used in intercalation Polymer is any one in polyaniline, polypyrrole or polythiophene, using nano material as wave absorbing agent, can make full use of and receive The purity of the characteristics such as nanometer size effect, quantum tunneling effect, large specific surface area of rice material, the montmorillonite in S2 need to reach Modified Nano ferrite wave absorbing agent of the smectite content in composite material in 10%-15%, S2 in 95%, S2 is Ni-Zn iron Oxysome or Co-Zn, and its internal Ni and Zn molar ratio is 1:1, and Co, Zn molar ratio are 1:1, at least one in ferrite Kind, grain diameter 30nm-80nm, it is silane coupling agent, aluminate coupling agent, titanate coupling agent that coupling agent used is modified to it Or fatty acid salt, the microwave absorbing coating of acquisition can be in 2-18GHz band limits to the strong absorption of electromagnetic wave, the reflection in the frequency range Rate is all higher than 10dB, and reflectivity minimum reaches -27dB.
The operation principle of the present embodiment:
Embodiment 1
A kind of low-temperature setting wave-absorbing and camouflage coating proposed by the present invention and preparation method thereof, includes the following steps:
S1, diluent ethanol 20ml is added in making to 60g modified epoxies, is sufficiently stirred, ultrasonic disperse 10min;
S2, the nanometer ferrite by 10g conducting polymers or montmorillonite nano-composite material and 20g Jing Guo coupling agent modified processing It is added, stirs evenly, ultrasonic disperse 20min is to get antiradar coatings.
Using vector network analyzer to carrying out absorbing property survey using the coating after antiradar coatings of the present invention coating solidification Examination, the coating are all higher than 10dB in 2-18GHz band limits to the reflection loss of electromagnetic wave, and reflectivity minimum reaches- 24.53dB。
Embodiment 2
A kind of low-temperature setting wave-absorbing and camouflage coating proposed by the present invention and preparation method thereof, includes the following steps:
S1, diluent ethanol 25ml is added in making to 65g modified epoxies, is sufficiently stirred, ultrasonic disperse 20min;
S2, the nanometer ferrite by 15g conducting polymers or montmorillonite nano-composite material and 20g Jing Guo coupling agent modified processing It is added, stirs evenly, ultrasonic disperse 20min is to get antiradar coatings.
Using vector network analyzer to carrying out absorbing property survey using the coating after antiradar coatings of the present invention coating solidification Examination, the coating are all higher than 10dB in 2-18GHz band limits to the reflection loss of electromagnetic wave, and reflectivity minimum reaches- 25.72dB。
Embodiment 3
A kind of low-temperature setting wave-absorbing and camouflage coating proposed by the present invention and preparation method thereof, includes the following steps:
S1, diluent ethanol 30ml is added in making to 60g modified epoxies, is sufficiently stirred, ultrasonic disperse 10min;
S2, the nanometer ferrite by 10g conducting polymers or montmorillonite nano-composite material and 25g Jing Guo coupling agent modified processing It is added, stirs evenly, ultrasonic disperse 15min is to get antiradar coatings.
Using vector network analyzer to carrying out absorbing property survey using the coating after antiradar coatings of the present invention coating solidification Examination, the coating are all higher than 10dB in 2-18GHz band limits to the reflection loss of electromagnetic wave, and reflectivity minimum reaches- 25.81dB。
Embodiment 4
A kind of low-temperature setting wave-absorbing and camouflage coating proposed by the present invention and preparation method thereof, includes the following steps:
S1, diluent ethanol 40ml is added in making to 65g modified epoxies, is sufficiently stirred, ultrasonic disperse 15min;
S2, the nanometer ferrite by 20g conducting polymers or montmorillonite nano-composite material and 15g Jing Guo coupling agent modified processing It is added, stirs evenly, ultrasonic disperse 15min is to get antiradar coatings.
Using vector network analyzer to carrying out absorbing property survey using the coating after antiradar coatings of the present invention coating solidification Examination, the coating are all higher than 10dB in 2-18GHz band limits to the reflection loss of electromagnetic wave, and reflectivity minimum reaches- 26.47dB。
Embodiment 5
A kind of low-temperature setting wave-absorbing and camouflage coating proposed by the present invention and preparation method thereof, includes the following steps:
S1, diluent ethanol 50ml is added in making to 70g modified epoxies, is sufficiently stirred, ultrasonic disperse 15min;
S2, the nanometer ferrite by 15g conducting polymers or montmorillonite nano-composite material and 15g Jing Guo coupling agent modified processing It is added, stirs evenly, ultrasonic disperse 20min is to get antiradar coatings.
Using vector network analyzer to carrying out absorbing property survey using the coating after antiradar coatings of the present invention coating solidification Examination, the coating are all higher than 10dB in 2-18GHz band limits to the reflection loss of electromagnetic wave, and reflectivity minimum reaches- 27dB, the process are the workflow of the present invention.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc. With replacing, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this Within the protection domain of invention.

Claims (8)

1. a kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof, which is characterized in that include the following steps:
S1, using modified epoxy as filmogen, be added diluent, be sufficiently stirred, ultrasonic disperse 10-30min;
S2, conducting polymer or montmorillonite nano-composite material and nanometer ferrite Jing Guo coupling agent modified processing are added, It stirs evenly, ultrasonic disperse 10-30min is to get antiradar coatings.
2. a kind of low-temperature setting wave-absorbing and camouflage coating according to claim 1 and preparation method thereof, it is characterised in that:It is described Modified epoxy in S1 is to be modified gained by modifying agent of mass fraction 20%-30% polyester resin.
3. a kind of low-temperature setting wave-absorbing and camouflage coating according to claim 1 and preparation method thereof, it is characterised in that:It is described Diluent in S1 is ethyl alcohol.
4. a kind of low-temperature setting wave-absorbing and camouflage coating according to claim 1 and preparation method thereof, it is characterised in that:It is described Conducting polymer or montmorillonite nano-composite material wave absorbing agent in S2 are to pass through lotion in the presence of acid condition and oxidant Polymerization or in-situ polymerization are prepared, and conducting polymer used in intercalation is any one in polyaniline, polypyrrole or polythiophene Kind.
5. a kind of low-temperature setting wave-absorbing and camouflage coating according to claim 1 and preparation method thereof, it is characterised in that:It is described The purity of montmorillonite in S2 need to reach 95%.
6. a kind of low-temperature setting wave-absorbing and camouflage coating according to claim 1 and preparation method thereof, it is characterised in that:It is described The smectite content in composite material in S2 is in 10%-15%.
7. a kind of low-temperature setting wave-absorbing and camouflage coating according to claim 1 and preparation method thereof, it is characterised in that:It is described Modified Nano ferrite wave absorbing agent in S2 is Ni-Zn ferrites or Co-Zn, and its internal Ni and Zn molar ratio is 1:1, and Co, Zn molar ratio are 1:1.
8. a kind of low-temperature setting wave-absorbing and camouflage coating according to claim 7 and preparation method thereof, it is characterised in that:It is described At least one of ferrite, grain diameter 30nm-80nm, it is silane coupling agent, Aluminate idol that coupling agent used is modified to it Join agent, titanate coupling agent or fatty acid salt.
CN201810224280.2A 2018-03-19 2018-03-19 A kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof Pending CN108314954A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110711688A (en) * 2019-09-04 2020-01-21 湖南鑫长胜材料科技有限公司 Preparation method of coating type stealth coating
CN110724441A (en) * 2019-12-04 2020-01-24 罗更荣 Polythiophene coated GO-NiFe2O4-BaTiO3Modified epoxy resin wave-absorbing coating and preparation method thereof
CN112048239A (en) * 2020-07-30 2020-12-08 新昌县旭辉新材料科技有限公司 Barium ferrite-Al2O3Porous SiC-loaded polyaniline wave-absorbing coating and preparation method thereof

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CN1597308A (en) * 2004-08-13 2005-03-23 北京科技大学 Preparation method of organic/inorganic multilayer mixed electromatnetic wave adsorption shielding material
CN101259463A (en) * 2008-04-30 2008-09-10 东北大学 Preparation of foam aluminum alloy base wave-absorbing material
CN107760149A (en) * 2016-08-23 2018-03-06 洛阳尖端技术研究院 A kind of antiradar coatings and preparation method thereof

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110711688A (en) * 2019-09-04 2020-01-21 湖南鑫长胜材料科技有限公司 Preparation method of coating type stealth coating
CN110724441A (en) * 2019-12-04 2020-01-24 罗更荣 Polythiophene coated GO-NiFe2O4-BaTiO3Modified epoxy resin wave-absorbing coating and preparation method thereof
CN112048239A (en) * 2020-07-30 2020-12-08 新昌县旭辉新材料科技有限公司 Barium ferrite-Al2O3Porous SiC-loaded polyaniline wave-absorbing coating and preparation method thereof
CN112048239B (en) * 2020-07-30 2021-11-19 深圳鑫景源科技股份有限公司 Barium ferrite-Al2O3Porous SiC-loaded polyaniline wave-absorbing coating and preparation method thereof

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Application publication date: 20180724