CN105419250B - One kind inhales ripple insulating coating material formula and preparation method thereof - Google Patents
One kind inhales ripple insulating coating material formula and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- C08L63/10—Epoxy resins modified by unsaturated compounds
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- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
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- C08L2203/14—Applications used for foams
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- C—CHEMISTRY; METALLURGY
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Abstract
Ripple insulating coating material formula and preparation method thereof is inhaled the invention discloses one kind, the formula is made up of the raw material of following parts by weight：10 12 parts of graphite powder, 58 parts of manganese dioxide, 15 17 parts of vinyl ester resin, 5 13 parts of isocyanates, 13 18 parts of PPG, 36 parts of catalyst, 47 parts of foaming agent, 69 parts of foam stabiliser, 13 16 parts of Nano Silver Graphene, 8 10 parts of ferriferrous oxide nano-particle, 9 15 parts of auxiliary agent, 25 parts of polyacrylonitrile, 15 parts of antioxidant, 26 parts of plasticizer, 49 parts of chromium powder, 13 parts of azo-bis-isobutyl cyanide, the present invention has been opened and has prepared absorbing material with new composition, and the electromagnetic wave of wider frequency range can be absorbed, and absorptivity is further enhanced, to greatest extent by electromagnetic wave attenuation, and with heat preservation property.
Description
Technical field
The present invention relates to technical field of material, and in particular to one kind inhales ripple insulating coating material formula and its preparation side
Method.
Background technology
Electromagnetic wave absorbent material, abbreviation absorbing material is that a kind of electromagnetic wave that can be projected onto its surface is most of to be inhaled
Receive, and be lost by the electric or magnetic of material and electromagnetic energy be converted into the energy of heat energy or other forms and consumed, and instead
Penetrate, scatter and transmit the composite functional material of all very littles.The sorting technique of absorbing material mainly has four kinds：Can divide by ripple principle is inhaled
It is absorption-type and interference-type, the former utilizes material absorption, the latter to electromagnetic wave in itself using top layer and the row back wave of bottom two
Counteracting is interfered to reduce electromagnetic radiation；It is divided into resistive, dielectric type and magnetizing mediums type, carborundum, stone by wear out mechanism
Ink etc. belongs to resistor-type, and electromagnetic energy mainly decays on material resistance, is dissipated with form of thermal energy, and barium titanate is inhaled for dielectric type
Wave material, the relaxation loss decay electromagnetic wave absorption of electronic polarization, molecular polarization or interfacial polarization mainly by medium, magnetic loss
Type absorbent is by the Polarization Mechanisms such as magnetic hystersis loss, eddy-current loss and residual loss decay electromagnetic wave absorption, such as ferrite, carbonyl
Iron etc.；It is divided into application type and structural type by moulding process, application type is to be coated on object table after absorbent is mixed with binding agent
Face forms microwave absorbing coating, and structural absorbing mater ials are typically to be dispersed in absorbent by the enhanced structural material of special fibre
The structural composite material for being formed, it has the dual-use function for carrying and inhaling ripple；By different study periods, absorbing material can divide
For traditional and new, ferrite, metal fine powder, barium titanate, carborundum, graphite, conductive fiber etc. are traditional absorbing material,
They have the features such as low cost, absorption band are narrow, density is big, main target be it is strong absorb, nano material, polycrystalline iron fiber,
The novel wave-absorbing materials such as conduction high polymer, it is desirable to meet the spies such as thickness of thin, working band are wide, lightweight, adhesion strength is high.
For offshore company and research institution, ferrite wave-absorbing material and metal fine powder inhale ripple material in traditional absorbing material
Material is two kinds of absorbing materials that are most studied and having obtained wide application.And nano material and polycrystalline iron fiber are then current
Performance is best in numerous novel wave-absorbing materials two kinds.Japan is in advanced in the worldly in terms of ferrite wave-absorbing material is developed
Position, the 80's of last century, Nippon Electric Company, Ltd.（NEC）The ferrite wave-absorbing material of preparation, frequency of use is 3 ~ 20GHz, is had
Four kinds of product line compositions, thickness is 12mm to the maximum, and most thin is 2.5mm, then develops 1.5 ~ 2.5mm of thickness, uses frequency
5 ~ 10GHz of rate, absorptivity reach the ferrite of 30dB and the composite wave-suction material of Fe3O4 materials.The U.S.（Conductron）It is public
The lithium Cd ferrite developed is taken charge of, absworption peak is 17dB, and frequency of use is in rice to superhigh frequency band.The Asia that M companies of the U.S. 3 develop
Micron order polycrystalline iron fiber spary coating type absorbing material, with light weight, coating is thin the features such as, absorbent volume ratio be 25% ~
30%, thickness be 1mm in the case of, in f (3 ~ 18GHz) interior R<- 5dB, surface density 1.52kg/m2；GAMMA companies it is many
Brilliant iron fiber microwave absorbing material, frequency of use is 2 ~ 18GHz, successfully develops radar invisible coating, and absorption maximum is reachable
34dB.The absorbent of the IL-Hool coating of Japanese TDK companies is ferrite and carbonyl iron dust, and signal layer coating thickness is
During 2.1mm, in 8 ~ 12GHz frequency ranges, meet and require (R<- 10dB) bandwidth 1.1GHz, surface density 6.5kg/m2,
Better performances.The U.S. develops a series of lamelliform ferrite wave adsorption compound coatings by nano material, and is successfully applied to
F-117A fighter planes.At present, foreign study person and company put forth effort on and improved by way of various absorbents are compound tradition suction ripple
Material, at the same carry on to the exploitation of novel wave-absorbing material with explore, towards the direction stable development of " thin, gently, wide, strong ".
With the fast development of electronic technology, electromagenetic wave radiation pollution increasingly influences and has threatened the work and life of people
Environment living, earliest used in military field absorbing material can effective electromagnetic wave absorption,
Reduce the harm that electromagenetic wave radiation brings, therefore be widely used in every field.In order to adapt to inhale ripple
The development trend of materials application diversification, novel wave-absorbing material requirement has light weight, intensity is high, frequency range is wide, absorption is strong and ring
Border close friend etc..Traditional layer Radar Absorbents are because its weatherability is poor, bad adhesion, big density the shortcomings of limit it and use model
Enclose.
Knowable to from above-mentioned existing technical investigation, formula and the preparation aspect for absorbing material, still with very big
Room for promotion, still needs perfect in its aspect of performance.
The content of the invention
It is above-mentioned in order to solve the problems, such as, ripple insulating coating material formula and preparation method thereof is inhaled the invention provides one kind,
Open and absorbing material has been prepared with new composition, and the electromagnetic wave of wider frequency range can have been absorbed, and absorptivity is entered
One step strengthens, and to greatest extent by electromagnetic wave attenuation, and with heat preservation property, can effectively solve asking in background technology
Topic.
To achieve these goals, the technical solution adopted by the present invention is as follows：One kind inhales ripple insulating coating material formula, by
The raw material composition of following parts by weight：
Graphite powder 10-12 parts, manganese dioxide 5-8 parts, vinyl ester resin 15-17 parts, isocyanates 5-13 parts, polyethers it is many
First alcohol 13-18 parts, catalyst 3-6 parts, foaming agent 4-7 parts, foam stabiliser 6-9 parts, 13-16 parts of nanometer silver-graphene, four oxygen
Change three Fe nanometer particles 8-10 parts, auxiliary agent 9-15 parts, polyacrylonitrile 2-5 parts, antioxidant 1-5 parts, plasticizer 2-6 parts, chromium powder 4-9
Part, azo-bis-isobutyl cyanide 1-3 parts.
Further, it is made up of the raw material of following parts by weight：
12 parts of graphite powder, 8 parts of manganese dioxide, 17 parts of vinyl ester resin, 13 parts of isocyanates, 18 parts of PPG,
6 parts of catalyst, 7 parts of foaming agent, 16 parts of 9 part, nanometer silver-graphene of foam stabiliser, 10 parts of ferriferrous oxide nano-particle, help
15 parts of agent, 5 parts of polyacrylonitrile, 5 parts of antioxidant, 6 parts of plasticizer, 9 parts of chromium powder, 3 parts of azo-bis-isobutyl cyanide.
Further, by neopelex, odium stearate, hexadecylamine is constituted the auxiliary agent, and its proportioning is
3：1:7.
The other present invention have also been devised a kind of preparation method for inhaling ripple insulating coating material, comprise the following steps：
（1）The manganese dioxide and graphite that will be prepared by a certain percentage stir in being added to PPG, Ran Houjia
Enter catalyst, foaming agent and foam stabiliser to stir, while mould is preheating into 40-50 DEG C, isocyanates is added to
In the compound for stirring, and rapid high-speed stirred 15-20s.
（2）By vinyl ester resin, nanometer silver-graphene, ferriferrous oxide nano-particle, auxiliary agent, polyacrylonitrile, antioxygen
Agent, plasticizer, chromium powder, azo-bis-isobutyl cyanide are mixed by formulation ratio, add solvent and dispersant, carried out wet grinding, are dried
It is dry to obtain powder, powder is first mixed in step（1）In the semi-finished product for obtaining, then mixed powder is carried out into pre-burning, ball milling
After sieve, and the powder after sieving is molded, sinter obtain inhale ripple insulating coating material.
Further, the step（2）The temperature of drying is 50-70 DEG C, and the time is 10-16h.
Further, the step（2）The speed of middle wet grinding is 4300-4500r/min, and the time is 6-10h.
Further, the step（2）Middle forming method is at least one be cast, be coated with, suppressing in molding and injection.
Further, the step（2）Middle sintering process is：0.5-3 DEG C of first heating rate/min, then controls temperature to exist
1000 DEG C -1150 DEG C are sintered, and soaking time is 4-6h.
The present invention has the beneficial effect that：The present invention has been opened and has prepared absorbing material with new composition, and can be absorbed more
The extensively electromagnetic wave of frequency range, and absorptivity is further enhanced, to greatest extent by electromagnetic wave attenuation and special with insulation
Property.
Specific embodiment
According to following embodiments, the present invention can be better understood from.However, as it will be easily appreciated by one skilled in the art that real
Apply the content described by example and be merely to illustrate the present invention, without should also without limitation on sheet described in detail in claims
Invention.
Embodiment 1：
One kind inhales ripple insulating coating material formula, is made up of the raw material of following parts by weight：
10 parts of graphite powder, 5 parts of manganese dioxide, 15 parts of vinyl ester resin, 5 parts of isocyanates, 13 parts of PPG, urge
3 parts of agent, 4 parts of foaming agent, 13 parts of 6 part, nanometer silver-graphene of foam stabiliser, 8 parts of ferriferrous oxide nano-particle, auxiliary agent 9
Part, 2 parts of polyacrylonitrile, 1 part of antioxidant, 2 parts of plasticizer, 4 parts of chromium powder, 1 part of azo-bis-isobutyl cyanide；
Wherein by neopelex, odium stearate, hexadecylamine composition, its proportioning is 3 to auxiliary agent：1:7.
The preparation method of the suction ripple insulating coating material, comprises the following steps：
（1）The manganese dioxide and graphite that will be prepared by a certain percentage stir in being added to PPG, Ran Houjia
Enter catalyst, foaming agent and foam stabiliser to stir, while mould is preheating into 40 DEG C, isocyanates is added to stirring
In uniform compound, and rapid high-speed stirred 15s；
（2）By vinyl ester resin, nanometer silver-graphene, ferriferrous oxide nano-particle, auxiliary agent, polyacrylonitrile, antioxygen
Agent, plasticizer, chromium powder, azo-bis-isobutyl cyanide are mixed by formulation ratio, add solvent and dispersant, carried out wet grinding, are dried
It is dry to obtain powder, powder is first mixed in step（1）In the semi-finished product for obtaining, then mixed powder is carried out into pre-burning, ball milling
After sieve, and the powder after sieving is molded, sinter obtain inhale ripple insulating coating material；
Wherein step（2）The temperature of drying is 50 DEG C, and the time is 10h；
Wherein step（2）The speed of middle wet grinding is 4300r/min, and the time is 6h；
Wherein step（2）Middle forming method is at least one be cast, be coated with, suppressing in molding and injection；
Wherein step（2）Middle sintering process is：0.5 DEG C/min of first heating rate, then controls temperature to be carried out at 1000 DEG C
Sintering, soaking time is 4h.
Embodiment 2：
One kind inhales ripple insulating coating material formula, is made up of the raw material of following parts by weight：
11 parts of graphite powder, 7 parts of manganese dioxide, 16 parts of vinyl ester resin, 10 parts of isocyanates, 15 parts of PPG,
4 parts of catalyst, 5 parts of foaming agent, 14 parts of 7 part, nanometer silver-graphene of foam stabiliser, 9 parts of ferriferrous oxide nano-particle, help
12 parts of agent, 3 parts of polyacrylonitrile, 4 parts of antioxidant, 3 parts of plasticizer, 7 parts of chromium powder, 2 parts of azo-bis-isobutyl cyanide；
Wherein by neopelex, odium stearate, hexadecylamine composition, its proportioning is 3 to auxiliary agent：1:7.
The preparation method of the suction ripple insulating coating material, comprises the following steps：
（1）The manganese dioxide and graphite that will be prepared by a certain percentage stir in being added to PPG, Ran Houjia
Enter catalyst, foaming agent and foam stabiliser to stir, while mould is preheating into 40-50 DEG C, isocyanates is added to
In the compound for stirring, and rapid high-speed stirred 15-20s；
（2）By vinyl ester resin, nanometer silver-graphene, ferriferrous oxide nano-particle, auxiliary agent, polyacrylonitrile, antioxygen
Agent, plasticizer, chromium powder, azo-bis-isobutyl cyanide are mixed by formulation ratio, add solvent and dispersant, carried out wet grinding, are dried
It is dry to obtain powder, powder is first mixed in step（1）In the semi-finished product for obtaining, then mixed powder is carried out into pre-burning, ball milling
After sieve, and the powder after sieving is molded, sinter obtain inhale ripple insulating coating material；
Wherein step（2）The temperature of drying is 60 DEG C, and the time is 1h；
Wherein step（2）The speed of middle wet grinding is 4400r/min, and the time is 8h；
Wherein step（2）Middle forming method is at least one be cast, be coated with, suppressing in molding and injection；
Wherein step（2）Middle sintering process is：2 DEG C/min of first heating rate, then controls temperature to be burnt at 1100 DEG C
Knot, soaking time is 5h.
Embodiment 3：
One kind inhales ripple insulating coating material formula, is made up of the raw material of following parts by weight：
12 parts of graphite powder, 8 parts of manganese dioxide, 17 parts of vinyl ester resin, 13 parts of isocyanates, 18 parts of PPG,
6 parts of catalyst, 7 parts of foaming agent, 16 parts of 9 part, nanometer silver-graphene of foam stabiliser, 10 parts of ferriferrous oxide nano-particle, help
15 parts of agent, 5 parts of polyacrylonitrile, 5 parts of antioxidant, 6 parts of plasticizer, 9 parts of chromium powder, 3 parts of azo-bis-isobutyl cyanide；
Wherein by neopelex, odium stearate, hexadecylamine composition, its proportioning is 3 to auxiliary agent：1:7.
The preparation method of the suction ripple insulating coating material, comprises the following steps：
（1）The manganese dioxide and graphite that will be prepared by a certain percentage stir in being added to PPG, Ran Houjia
Enter catalyst, foaming agent and foam stabiliser to stir, while mould is preheating into 50 DEG C, isocyanates is added to stirring
In uniform compound, and rapid high-speed stirred 20s；
（2）By vinyl ester resin, nanometer silver-graphene, ferriferrous oxide nano-particle, auxiliary agent, polyacrylonitrile, antioxygen
Agent, plasticizer, chromium powder, azo-bis-isobutyl cyanide are mixed by formulation ratio, add solvent and dispersant, carried out wet grinding, are dried
It is dry to obtain powder, powder is first mixed in step（1）In the semi-finished product for obtaining, then mixed powder is carried out into pre-burning, ball milling
After sieve, and the powder after sieving is molded, sinter obtain inhale ripple insulating coating material.
Wherein step（2）The temperature of drying is 70 DEG C, and the time is 16h；
Wherein step（2）The speed of middle wet grinding is 4500r/min, and the time is 6-10h；
Wherein step（2）Middle forming method is at least one be cast, be coated with, suppressing in molding and injection；
Wherein step（2）Middle sintering process is：3 DEG C/min of first heating rate, then controls temperature to be burnt at 1150 DEG C
Knot, soaking time is 6h.
Based on above-mentioned, open and absorbing material has been prepared with new composition, and the electricity of wider frequency range can have been absorbed
Magnetic wave, and absorptivity further enhances, to greatest extent by electromagnetic wave attenuation, and with heat preservation property.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Claims (7)
1. it is a kind of to inhale ripple insulating coating material formula, it is characterised in that to be made up of the raw material of following parts by weight：
Graphite powder 10-12 parts, manganese dioxide 5-8 parts, vinyl ester resin 15-17 parts, isocyanates 5-13 parts, PPG
13-18 parts, catalyst 3-6 parts, foaming agent 4-7 parts, foam stabiliser 6-9 parts, 13-16 parts of nanometer silver-graphene, four oxidation three
Fe nanometer particles 8-10 parts, auxiliary agent 9-15 parts, polyacrylonitrile 2-5 parts, antioxidant 1-5 parts, plasticizer 2-6 parts, chromium powder 4-9 parts,
Azo-bis-isobutyl cyanide 1-3 parts.
2. a kind of ripple insulating coating material of inhaling as claimed in claim 1 is formulated, it is characterised in that the auxiliary agent is by dodecyl
Benzene sulfonic acid sodium salt, odium stearate, hexadecylamine composition, its proportioning is 3：1:7.
3. it is a kind of inhale ripple insulating coating material preparation method, it is characterised in that comprise the following steps：
(1) manganese dioxide and graphite that will be prepared by a certain percentage stir in being added to PPG, are subsequently adding and urge
Agent, foaming agent and foam stabiliser stir, while mould is preheating into 40-50 DEG C, isocyanates are added into stirring
In uniform compound, and rapid high-speed stirred 15-20s；
(2) by vinyl ester resin, nanometer silver-graphene, ferriferrous oxide nano-particle, auxiliary agent, polyacrylonitrile, antioxidant,
Plasticizer, chromium powder, azo-bis-isobutyl cyanide are mixed by formulation ratio, add solvent and dispersant, carried out wet grinding, are dried
To powder, first powder is mixed in the semi-finished product that step (1) is obtained, then mixed powder is carried out into pre-burning, mistake after ball milling
Sieve, and the powder after sieving is molded, sinter obtain inhale ripple insulating coating material.
4. a kind of preparation method for inhaling ripple insulating coating material as claimed in claim 3, it is characterised in that the step (2)
The temperature of drying is 50-70 DEG C, and the time is 10-16h.
5. a kind of preparation method for inhaling ripple insulating coating material as claimed in claim 3, it is characterised in that the step (2)
The speed of middle wet grinding is 4300-4500r/min, and the time is 6-10h.
6. a kind of preparation method for inhaling ripple insulating coating material as claimed in claim 3, it is characterised in that the step (2)
Middle forming method is at least one be cast, be coated with, suppressing in molding and injection.
7. a kind of preparation method for inhaling ripple insulating coating material as claimed in claim 3, it is characterised in that the step (2)
Middle sintering process is：0.5-3 DEG C of first heating rate/min, then controls temperature to be sintered at 1000 DEG C -1150 DEG C, during insulation
Between be 4-6h.
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| CN102977587A (en) * | 2012-12-25 | 2013-03-20 | 中国人民解放军总参谋部工程兵科研三所 | Foaming type polyurethane wave-absorbing material and preparation method thereof |
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