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 PDFInfo
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- 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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- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- 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
- 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
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0843—Cobalt
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0862—Nickel
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
-
- 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
- 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
- C08K2003/2265—Oxides; Hydroxides of metals of iron
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- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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
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.
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| CN201810224280.2A CN108314954A (en) | 2018-03-19 | 2018-03-19 | A kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof |
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| CN201810224280.2A CN108314954A (en) | 2018-03-19 | 2018-03-19 | A kind of low-temperature setting wave-absorbing and camouflage coating and preparation method thereof |
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Cited By (3)
| 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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Cited By (4)
| 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 |