CN104861753B - A kind of bituminous epoxy coating with electromagnetic wave absorption function and preparation method thereof - Google Patents

A kind of bituminous epoxy coating with electromagnetic wave absorption function and preparation method thereof Download PDF

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Publication number
CN104861753B
CN104861753B CN201510236544.2A CN201510236544A CN104861753B CN 104861753 B CN104861753 B CN 104861753B CN 201510236544 A CN201510236544 A CN 201510236544A CN 104861753 B CN104861753 B CN 104861753B
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magnetic powder
soft magnetic
epoxy
parts
electromagnetic wave
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CN104861753A (en
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周威
蒋涛
张传昆
文俊
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Hubei University
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Hubei University
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Abstract

The invention provides a kind of bituminous epoxy coating with electromagnetic wave absorption function and its preparation and application.A kind of bituminous epoxy coating with electromagnetic wave absorption function, is made up of the part of A, B, C tri-;The part A includes the component of following weight portion:100 parts of pitch;15 ~ 100 parts of asphalt flux;10 ~ 50 parts of bulking agent;5 ~ 50 parts of curing agent;The part B includes the component of following weight portion:30 ~ 100 parts of epoxy resin;5 ~ 100 parts of epoxy resin diluent;The C portion includes the component of following weight portion:Modified 500 ~ 5000 parts of soft magnetic powder.Absorption maximum of the coating on 2 ~ 20 GHz frequency bands is 30 dB.Its application method is:The coating can be directly coated on the surface of the part that need to construct by the thickness of 0.2 ~ 30 mm, after solidifying 0.5 ~ 120 hor at room temperature ~ 80 DEG C;Also the sheet material prefabricated component that thickness is 0.5 ~ 40 mm can be prepared into, after 0.5 ~ 120 hor is solidified at room temperature ~ 80 DEG C, be pasted and the article surface that need to be constructed using adhesive.

Description

A kind of bituminous epoxy coating with electromagnetic wave absorption function and preparation method thereof
Technical field
The present invention relates to new material technology field, more particularly to a kind of mixing, construction can be stirred at room temperature has The bituminous epoxy coating and its preparation and application of electromagnetic wave absorption function.
Background technology
In recent years, the fast development of wireless communication technology causes more serious electromagnetic radiation pollution to environment, not only Cause substantial amounts of electromagnetic interference, destroy normal electromagnetic system, and the serious harm mankind's is healthy.Electromagnetic radiation pollution The fourth-largest generally acknowledged environmental pollution after atmosphere pollution, water pollution and noise pollution is turned into, it is seen then that high-performance wave-absorbing material The research and development of material have urgent demand in the improvement of electromagnetic environment and field of electromagnetic compatibility.
A kind of broadband multi-layer structured wave absorbing composite material and its preparation side are disclosed in the B of patent CN 101434134 Method, it is characterised in that:Including surface layer, sandwich of layers and the part of bottom three;Surface layer includes carbonyl iron dust, polymer and glass fibre Cloth, its quality proportioning is:Carbonyl iron dust 20~50%, polymer 30~48%, glass fabric 20~32%;Sandwich of layers includes CNT, polymer and glass fabric, its quality proportioning is:CNT 2~6%, polymer 56.4~58.8%, glass Glass fiber cloth 37.6~39.2%;Bottom includes carbonyl iron dust, polymer, glass fabric, and its quality proportioning is:Carbonyl iron dust 50~80%, polymer 12~30%, glass fabric 8~20%.
A kind of conductive polymer wave-absorbing material is disclosed in the B of patent CN 101585959.The material is by poly- (3,4 dioxies Ethyl) organic binder bond such as thiophene (PEDOT) microballoon and epoxy resin or polyurethane composition, wherein conductive polymer wave-absorbing material In conductive polymer poly (3,4 dioxoethyl) thiophene microballoon weight/mass percentage composition be 20~80%.
A kind of carbon micro-tube epoxy resin wave-absorbing composite material and its preparation are disclosed in the B of patent CN 101817971 Method, it is made up of carbon micron tube and epoxide-resin glue;Its preparation method is to prepare carbon micron tube with urea and ethylene glycol;By double Phenol A types epoxy resin, acetone and diethylenetriamine prepare epoxide-resin glue;Carbon micron tube is added in epoxide-resin glue again, Compacting obtains composite in being stirring evenly and then adding into mould.
A kind of epoxy resin composite wave-absorbing material and preparation method thereof is disclosed in the B of patent CN 102504495, the material Material includes epoxy resin, the curing agent of 50~100 parts by weight, the magnetic fillers of 3~10 parts by weight, 2 of 100 parts by weight The conductive filler of the semiconductor fills of~6 parts by weight and 2~5 parts by weight;The preparation method be by the magnetic fillers, Semiconductor fills, conductive filler are well mixed after adding the thinning epoxy resin of heating, add curing agent to be solidified.
A kind of hydrophilic modified paint of absorbable frequency electromagnetic waves is disclosed in the B of patent CN 102559021, it is divided into Subbing and investment precoat, by dehydration raw lacquer, industrial tung oil, aqueous alkide resin, micron graphite powder, hydrophilic E-12 epoxies The plurality of raw materials such as resin, oxide powder and zinc, lithia powder, triethylene tetramine, industrial ethanedioic acid are formulated.
It is an object of the invention to provide a kind of bituminous epoxy coating with electromagnetic wave absorption function and preparation method thereof. A kind of bituminous epoxy coating with electromagnetic wave absorption function that the present invention is provided, is made up of the part of A, B, C tri-;The part A Component including following weight portion:100 parts of pitch;15~100 parts of asphalt flux;10~50 parts of bulking agent;Curing agent 5~50 Part;The part B includes the component of following weight portion:30~100 parts of epoxy resin;15~100 parts of epoxy resin diluent;Institute State component of the C portion including following weight portion:Modified 500~5000 parts of soft magnetic powder.The coating is on 2~20GHz frequency bands Absorption maximum be -30dB.Its application method is:The coating directly can be coated on the portion that need to construct by the thickness of 0.2~30mm The surface of part, after solidifying 0.5~120hor at room temperature~80 DEG C;Also it is prepared into the sheet material that thickness is 0.5~40mm pre- Product, after 0.5~120hor is solidified at room temperature~80 DEG C, is pasted and the article surface that need to be constructed using adhesive.
The content of the invention
Object of the present invention is to provide a kind of bituminous epoxy coating with electromagnetic wave absorption function and its preparation side Method and application.
To achieve the above object, the technical solution used in the present invention is:A kind of epoxy with electromagnetic wave absorption function Bituminous coating, it is characterised in that be made up of the part of A, B, C tri-;
The part A includes the component of following weight portion:
The part B includes the component of following weight portion:
30~100 parts of epoxy resin;
5~100 parts of epoxy resin diluent;
The C portion includes the component of following weight portion:
Modified 500~5000 parts of soft magnetic powder;
Wherein, the weight point in part A, part B and C portion composition is on the basis of pitch weight portion.
By above-mentioned technical proposal, the asphalt flux be styrene, methyl methacrylate, EMA, Propyl methacrylate, butyl methacrylate, 2-Propenoic acid, 2-methyl-, octyl ester, EHMA, glycidyl In propyl ester, dimethylaminoethyl acrylate methyl ammonia ethyl ester, hexadecyl metrhacrylate, octadecyl methacrylate and their polymer At least one, by any proportioning mixing during various mixing.
By above-mentioned technical proposal, the bulking agent is epoxidized soybean oil, epoxy stearic acid, epoxy methyl stearate, epoxy Ethyl stearate, epoxy stearic acid propyl ester, epoxy butyl stearate, epoxy stearic acid pentyl ester, the own ester of epoxy stearic acid, epoxy are hard At least one in ester heptyl heptylate, epoxy octyl stearate, PEO stearic acid, it is mixed by any proportioning during various mixing Close.
By above-mentioned technical proposal, the curing agent is fatty amines curing agent, alicyclic ring amine curing agent, aromatic amine solidification At least one in agent, polyamide-based curing agent, by any proportioning mixing during various mixing.
By above-mentioned technical proposal, the epoxy resin is bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol S type At least one in epoxy resin, bisphenol-A D-ring oxygen tree fat, resorcinol type epoxy, it is mixed by any proportioning during various mixing Close.
By above-mentioned technical proposal, the epoxy resin diluent be ethylene glycol diglycidylether, phenyl glycidyl ether, PVOH diglycidyl ether, polypropylene glycol diglycidyl ether, BDDE, 1,6- hexylene glycols two contract Water glycerin ether, trimethylolpropane triglycidyl ether, glycerin triglycidyl ether, trihydroxymethylpropanyltri diglycidyl ether In at least one, during various mixing by it is any proportioning mixing.
By above-mentioned technical proposal, described modified soft magnetic powder is carbonyl iron dust, iron-nickel alloy, the iron of platelet particle morphology At least one in cobalt alloy, sendust, iron sial evanohm and ferrite, by any proportioning mixing during various mixing, 5~50 μm of particle diameter, particle aspect ratio 30~100;
The method of modifying (preparation method of the soft magnetic powder that is modified) of the soft magnetic powder, comprises the following steps:
A) soft magnetic powder is obtained into flakelike powder through mechanical ball mill and annealing heat-treats;
The temperature of the annealing heat-treats in the step a) is 350~600 DEG C, and heat treatment time is 1-8hor;Mechanical ball It is 6~18hor to consume time;
B) soft magnetic powder is pressed:The mass ratio of absolute ethyl alcohol is 1000:100-500, will exist through the soft magnetic powder of above-mentioned treatment Poured into mixer after ultrasonic disperse in absolute ethyl alcohol and stirred, obtain soft magnetic powder mixed liquor;By soft magnetic powder:Silane idol Connection agent:Deionized water:The mass ratio of absolute ethyl alcohol is 1000:3-50:10-50:100-500, chooses silane coupler, deionization Water and absolute ethyl alcohol, silane coupler, deionized water and absolute ethyl alcohol are mixed, and after stirring, then mixed liquor are dropwise added Enter in the mixer equipped with soft magnetic powder mixed liquor and stir, finally use absolute ethanol washing, filtering, dry, that is, obtain Soft magnetic powder after coupling processing;
C) it is 100 to press epoxy acrylate with the mass ratio of ultraviolet curable agent:2-10, by ultraviolet curable agent and epoxy Crylic acid ester mixture, obtains the epoxy acrylic ester solution added with ultraviolet curable agent;Described ultraviolet curable agent is benzene idol Relation by marriage and its derivative, benzil ketals derivative, Dialkoxy acetophenones, an amine alkyl phenones, acyl group phosphorous oxides, aryl mistake At least one in oxidative esterification compound, benzoyl formiate, by any proportioning mixing during various mixing;
Soft magnetic powder as described in step a) is with the mass ratio of the epoxy acrylic ester solution added with ultraviolet curable agent 1000:100-1000, chooses the epoxy acrylic ester solution added with ultraviolet curable agent;After the coupling processing described in step b) Soft magnetic powder mix with the epoxy acrylic ester solution added with ultraviolet curable agent, after stirring, be placed in vacuum drying chamber In fully dry, obtain coat epoxy acrylate treatment after soft magnetic powder;
D) by the soft magnetic powder after the cladding epoxy acrylate treatment described in step c) with ultraviolet light polymerization function It is fluidizing fluid-bed in, fully solidification (time is 5s-60s), after the epoxy acrylate of the cladding after solidify is processed Soft magnetic powder;
E) by described in step d), the soft magnetic powder soft magnet powder after the epoxy acrylate treatment of the cladding after being solidified End is sieved through vibratory sieve, after separation obtains the soft magnetic powder sample of 5~50 μm of particle diameter, is placed in fully dry in vacuum drying chamber It is dry rear standby, obtain modified soft magnetic powder.
By above-mentioned technical proposal, a kind of preparation method of the bituminous epoxy coating with electromagnetic wave absorption function, its It is characterised by comprising the following steps:
1)) by the component of following weight portion:
Stirring mixes during pitch is added into reactor together with asphalt flux, bulking agent, curing agent, obtains having electricity The part A of the bituminous epoxy coating of electro-magnetic wave absorption function;
By the component of following weight portion:
30~100 parts of epoxy resin;
5~100 parts of epoxy resin diluent;
Epoxy resin and epoxy resin diluent are added in reactor together and stir mixing, obtain being inhaled with electromagnetic wave Receive the part B of the bituminous epoxy coating of function;
By the component of following weight portion:
Modified 500~5000 parts of soft magnetic powder, obtains C portion;
Wherein, the weight point in part A, part B and C portion composition is on the basis of pitch weight portion.
2) above-mentioned part A, part B and C portion agitating are mixed, obtains the bituminous epoxy with electromagnetic wave absorption function and apply Layer.
By above-mentioned technical proposal, the step 1) in agitating incorporation time be respectively 5~120min, agitating mixing temperature is Room temperature~180 DEG C, step 2) in agitating incorporation time be 5~30min, agitating mixing temperature be room temperature.
By above-mentioned technical proposal, a kind of application of the bituminous epoxy coating with electromagnetic wave absorption function, its feature It is using one of following two kinds:
1) by the bituminous epoxy coating with electromagnetic wave absorption function, the surface of the part that need to construct directly is coated on, in room Temperature~80 DEG C at solidify 0.5~120hor;
The coating thickness is 0.2~30mm, more preferably preferably 0.2~20mm, 0.2~10mm;
2) by the bituminous epoxy coating with electromagnetic wave absorption function, sheet material prefabricated component is prepared into, at room temperature~80 DEG C After 0.5~120hor of solidification, pasted and the article surface that need to be constructed using adhesive;
The thickness of the sheet material prefabricated component is 0.5~40mm, more preferably preferably 0.5~20mm, 0.5~15mm.
In the present invention, by weight, described part A includes 100 parts of pitch, and the present invention is to described pitch kind Class and source do not have special limitation, species and source using pitch well known to those skilled in the art.In the present invention, Pitch is present in coating as dispersed phase, and its good viscoplasticity face can increase the pliability of coating, increases the resistance to of coating Impact, it is to avoid the destruction such as brittle crush, deformation occurs when by external impacts in coating.In the present invention, described pitch At least one preferably in asphalt, oxidized asphalt, coal tar pitch and lake asphalt, by any proportioning mixing when various;This hair It is bright there is no special limitation to described asphalt source, using the commercial goods of above-mentioned pitch, such as can be public using shell Take charge of No. 70 pitches sold.
In the present invention, by weight, described part A includes 15~100 parts of asphalt flux, preferably 15~ 60 parts, more preferably 20~40 parts.Described asphalt flux be styrene, methyl methacrylate, EMA, Propyl methacrylate, butyl methacrylate, 2-Propenoic acid, 2-methyl-, octyl ester, EHMA, glycidyl In propyl ester, dimethylaminoethyl acrylate methyl ammonia ethyl ester, hexadecyl metrhacrylate, octadecyl methacrylate and their polymer At least one, by any proportioning mixing when various.Common asphalt material is at room temperature semifluid paste, when in use, must Need to be heated under strict high-temperature control, its viscosity is reached 1000cp or so could construction application.Pitch in the present invention Diluent can effectively reduce pitch viscosity at normal temperatures, so as to get bituminous epoxy coating have at room temperature it is preferable Construction mobility, without external heat during construction, reduces Energy Consumption of Construction, reduces difficulty of construction;Meanwhile, the drip used in the present invention Blue or green diluent has certain reactivity, without or a small amount of addition initiator in the case of polymerisation life can occur Into long-chain molecular structure, further optimize the cross-linked network knot of the prepared bituminous epoxy coating with electromagnetic wave absorption function Structure and mechanical property.That is, the asphalt flux for being used in the present invention can effectively reduce the viscosity of pitch when the initial stage is used, Increase construction operability, self-crosslinking reaction can occur in the later stage for using, improve the present invention prepare with electromagnetic wave The structure and mechanical property of the bituminous epoxy coating of absorption function.The present invention is to described bituminous epoxy diluent source without spy Different limitation, using the commercial goods of above-mentioned asphalt flux, can such as be sold using Tianjin Bo Di Chemical Co., Ltd.s Technical grade styrene.
In the present invention, by weight, described part A includes 10~50 parts of bulking agent, preferably 15~45 parts, More preferably 20~40 parts.Described bituminous epoxy bulking agent be epoxidized soybean oil, epoxy stearic acid, epoxy methyl stearate, Epoxy Ethyl stearate, epoxy stearic acid propyl ester, epoxy butyl stearate, epoxy stearic acid pentyl ester, epoxy stearic acid heptyl ester, ring At least one in oxygen octyl stearate and PEO stearic acid, by any proportioning mixing when various.The technology of this area Known in personnel, pitch is non-polar material, and epoxy resin is polar material, due to the difference of molecular polarity therebetween, will The two is when mixing, incompatible due to thermodynamically, cannot be formed at all with stabilization, the structure of homogeneous phase, and Causing the material for preparing cannot use, therefore, the compatibility solved between pitch and epoxy resin turns into key.In this hair In bright, the non-polar carbon chains in described bulking agent strand contained by one end can be effectively compatible with pitch, other end institute The epoxide group for containing effectively and epoxy resin compatibility can improve matrix pitch and the alternate compatibility of epoxy resin two, carry The combination property of epoxy bituminous coating high;Simultaneously as containing epoxide group in its strand, it is also possible to handed over curing agent Connection reaction, further increases the compatibility between pitch and epoxy resin, improves the mechanical strength and stabilization of prepared material Property.The present invention to described bulking agent source without special limitation, using the commercial goods of above-mentioned bulking agent, such as can be with The industrial-grade epoxy octyl stearate sold using Wuhan Jin Nuo Chemical Co., Ltd.s.
In the present invention, by weight, described part A includes 5~50 parts of curing agent, preferably 15~45 parts, More preferably 20~40 parts, most preferably 25~35 parts.Described curing agent is fatty amines curing agent, alicyclic ring amine-type cure At least one in agent, aromatic amine curing agent and polyamide-based curing agent, by any proportioning mixing when various.In the present invention In, the molecular chain structure of the blue or green curing agent can form the portal structure of flexibility between pitch and epoxy resin, improve The mechanical strength and stability of the asphalt material for obtaining, effectively improve the fragility of asphalt material, so as to get with electromagnetism The bituminous epoxy coating of ripple absorption function has toughness higher;Meanwhile, the curing agent used in the present invention is amine curing agent, With reactivity higher, reaction can be crosslinked with epoxy resin at relatively low temperatures, in the short period Form solidification intensity higher.The present invention, without special limitation, can use curing agent to the source of the curing agent Commercial goods, the polyamide 6 50 that can be such as sold using Shanghai Resin Factory Co., Ltd..
In the present invention, by weight, described part B includes 30~100 parts of epoxy resin.Described asphalt mixtures modified by epoxy resin Fat is bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin, bisphenol-A D-ring oxygen tree fat and isophthalic two At least one in phenol epoxy resin, preferably bisphenol A type epoxy resin, bisphenol-A D-ring oxygen tree fat and resorcinol asphalt mixtures modified by epoxy resin At least one in fat, by any proportioning mixing when various.Epoxy resin is commonly called as " all-purpose adhesive ", with excellent mechanical performance, Insulating properties, decay resistance, low-shrinkage energy and excellent adhesive property.In the present invention, epoxy resin is increasing with pitch Hold in the presence of agent, formation is with pitch as dispersed phase, insular structure of the epoxy resin as continuous phase.In the present invention, epoxy Resin primarily serves the effect of following two aspects:One is that, using the excellent adhesive property of epoxy resin, can increase the present invention The stability of the soft magnetic powder included in the bituminous epoxy coating with electromagnetic wave absorption function for preparing, it is to avoid make coating During, rolled due to external mechanical, the soft magnetic powder sedimentation that the reason such as soft magnetic powder self gravitation is caused, reunite etc. it is broken It is bad;Two is that can crosslink curing reaction with bituminous epoxy curing agent using epoxy resin, can be formed with three-dimensional network knot The characteristics of thermosets of structure, make the coating of preparation for thermosetting, increase the ability that coating resists high temperature, even if higher Under temperature in use (80-250 DEG C), the stable existence for melting will not also occur, flowing and destroy coating;Painting can also be increased simultaneously Layer and the adhesion strength of the substrate material surface of required coating construction, will not occur shelling of the coating with matrix material, stripping, Extend the service life of coating.The present invention originates without special limitation to the epoxy resin, using people in the art The commercial goods of the epoxy resin of member's accreditation, can such as be sold using Ba Ling petrochemical industry Co., Ltd of SINOPEC E-51 epoxy resin.
In the present invention, by weight, described part B includes 5~100 parts of epoxy resin diluent, preferably 10~45 parts, more preferably 15~40 parts.Described epoxy resin diluent is sweet ethylene glycol diglycidylether, phenyl glycidyl Oily ether, PVOH diglycidyl ether, polypropylene glycol diglycidyl ether, BDDE, 1,6- oneself two The contracting of alcohol diglycidyl ether, trimethylolpropane triglycidyl ether, glycerin triglycidyl ether and trimethylolpropane tris At least one in water glycerin ether, by any proportioning mixing when various.In the present invention, epoxy resin diluent can not only have The viscosity of effect reduction epoxy resin, increase construction mobility, and because containing the epoxide group that can be reacted on its strand, Thus curing cross-linking reaction can occur with epoxy curing agent, and improve the solidification effect of epoxy resin, increase asphalt mixtures modified by epoxy resin The toughness of fat cured product.That is, the epoxy resin diluent for being used in the present invention can effectively reduce epoxy when the initial stage is used The viscosity of resin, increases the operability of construction, and self-crosslinking reaction can occur in the later stage for using, and improves prepared by the present invention The structure and mechanical property of the bituminous epoxy coating with electromagnetic wave absorption function.The present invention originates to described epoxide diluent There is no special limitation, using the commercial goods of above-mentioned epoxide diluent, such as can be limited using the abundant Sheng chemical industry in Yantai City 632 epoxide diluents that company sells.
In the present invention, by weight, described part A includes 500~5000 parts of modified soft magnetic powder, preferably 1400~5000 parts, more preferably 1600~4500 parts.Described modified soft magnetic powder for platelet particle morphology carbonyl iron dust, At least one in iron-nickel alloy, ferrocobalt, sendust, iron sial evanohm and ferrite, by arbitrarily matching somebody with somebody when various Than mixing, 5~50 μm of particle diameter, particle aspect ratio 30~100.In the present invention, the modified soft magnetic powder need to change through following Method is modified can just use for property, and modified step is:First by soft magnetic powder after 350~600 DEG C of annealing heat-treats, then After 6~18hor of mechanical ball mill, flakelike powder is obtained;After through the soft magnetic powder of above-mentioned treatment in ultrasonic disperse in absolute ethyl alcohol Pour into mixer and stir;The mixing of a certain amount of silane coupler, deionized water and absolute ethyl alcohol is weighed, is stirred Afterwards, then by mixed liquor it is added dropwise to be stirred in the mixer equipped with soft magnetic powder mixed liquor, is finally washed with absolute ethyl alcohol Wash, filter, drying, that is, obtaining the soft magnetic powder after coupling processing;Again by itself and the epoxy acrylic added with ultraviolet curable agent Ester solution mixes, and after stirring, is placed in vacuum drying chamber and fully dries;Again by it in the boiling with ultraviolet light polymerization function Rise in fluid bed, fully solidify;The soft magnetic powder that will finally obtain is sieved through vibratory sieve, and separation obtains 5~50 μm of particle diameter Soft magnetic powder sample after, be placed in vacuum drying chamber fully dry after it is standby.In the present invention, soft magnetic powder can be realized effectively Shielding to electromagnetic wave and magnetic field, especially can further improve the absorbing property of material, using mechanical ball mill through stress annealing After technique flaky process, particle aspect ratio higher is obtained in that again, significantly increase soft magnetic powder shape anisotropy and Improve its complex dielectric permittivity, complex permeability and natural resonant frequency, possess magnetic conductivity higher, and the wave absorbtion higher having Energy;By soft magnetic powder through coupling processing after, can be grafted on soft magnetic powder surface generation with reactivity hydroxyl, Ke Yizeng Plus the compatibility with epoxy resin, it is ensured that material is not in because of the effect of soft magnetic powder own wt when long-time is used Caused sedimentation, dispersed structure of the stabilization soft magnetic powder in bituminous epoxy, extends the service life of material;Meanwhile, passed through Epoxy acrylate surface is modified, can in its surface wrap up one layer of epoxy acrylate, to be formed with core shell structure Modified soft magnetic powder, the shell of outer layer is the epoxy acrylate of solidification, and the core of internal layer is soft magnetic powder, and the structure can avoid soft Magnetic powder is reunited in the preparation process of coating because of itself part magnetization, while can further increase and epoxy resin Compatibility, to greatly improve soft magnetic powder dispersing uniformity in the coating.The present invention does not have to the source of the soft magnetic powder There is special limitation, the commercial goods of the soft magnetic powder approved using those skilled in the art can such as use Shenzhen The BASF-EW carbonyl iron dusts that Jun Can Electronics Equipment Co., Ltd sells.
The beneficial effects of the invention are as follows:
1) a kind of bituminous epoxy coating with electromagnetic wave absorption function that the present invention is provided, with electro-magnetic wave absorption work( Energy.
2) a kind of bituminous epoxy coating with electromagnetic wave absorption function that the present invention is provided, is colloidal fluid at normal temperatures Body.During for small area and special-shaped surface construction, the matrix surface of construction needed for being directly coated on, in solid at room temperature~80 DEG C Change 0.5~120hor, have the advantages that construction simpler, operability is stronger;During for large area and regular surface construction, Sheet material prefabricated component can be prepared into, after 0.5~120hor is solidified at room temperature~80 DEG C, be pasted using adhesive and is needed construction Article surface, it is high with efficiency of construction, be capable of achieving factorial praluction the advantages of.
Brief description of the drawings
Fig. 1 is the microwave-reflection of the bituminous epoxy coating with electromagnetic wave absorption function obtained in the embodiment of the present invention 1 Rate curve map.
Fig. 2 is the microwave-reflection of the bituminous epoxy coating with electromagnetic wave absorption function obtained in the embodiment of the present invention 2 Rate curve map.
Fig. 3 is the microwave-reflection of the bituminous epoxy coating with electromagnetic wave absorption function obtained in the embodiment of the present invention 3 Rate curve map.
Fig. 4 is the microwave-reflection of the bituminous epoxy coating with electromagnetic wave absorption function obtained in the embodiment of the present invention 4 Rate curve map.
Specific embodiment
The performance of the bituminous epoxy coating with electromagnetic wave absorption function that present invention detection is obtained, detailed process is as follows:
The shielding properties of the bituminous epoxy coating with electromagnetic wave absorption function that this technology is obtained is according to standard No. The standard of SJ20524-1995《The method of testing of Materials ' Shielding Effectiveness》Described in method detected.During test, will prepare After good part A is well mixed with part B, C portion, pour into tetrafluoroethene it is framed in, manufactured Board after solidification 72hor at room temperature Material, after sheet material is tailored into standard sample of photo by test request, is tested electro-magnetic wave absorption performance using spectrum analyzer.
In order to further illustrate the present invention, with reference to embodiment the present invention is provided with electromagnetic wave absorption function Bituminous epoxy coating and preparation method thereof and application method are described in detail, but can not be interpreted as them protecting the present invention Protect the restriction of scope.
Embodiment 1:
A kind of preparation method of the bituminous epoxy coating with electromagnetic wave absorption function, comprises the following steps:
1) preparation of modified soft magnetic powder:Weigh 1000g carbonyl iron dusts (Jun Can Electronics Equipment Co., Ltd of Shenzhen, under Together), it is placed in planetary ball mill, after ball milling 12hor, dries, then is placed in 450 DEG C of muffle furnace and carries out inert gas guarantor It is standby after taking-up is cooled to room temperature after shield heat treatment 1hor;
By 1000g through the carbonyl iron dust of above-mentioned treatment in 500g absolute ethyl alcohols (the Shanghai limited public affairs of Chinese medicines group chemical reagent Department, analyzes pure, similarly hereinafter) in disperse 30min (power of ultrasound is 250W, similarly hereinafter) in ultrasonic oscillator, fallen after being uniformly dispersed In entering mixer, and strength mechanical agitation is carried out, obtain carbonyl iron dust mixed liquor;Then 50g silane resin acceptor kh-550s (south is taken Capital dawn chemical general factory, analyze it is pure, similarly hereinafter), 50g deionized waters and 100g absolute ethyl alcohols mixing, stir 10min, then will mixing Liquid is added dropwise in the mixer equipped with carbonyl iron dust mixed liquor, persistently stirs 4hor, is finally fully washed with absolute ethyl alcohol Sample, then filters, last 100 DEG C of vacuum drying 8hor, that is, obtain the iron powder that silane coupler surface was modified;
By through the iron powder of coupling processing and 1000g added with (the Shanghai Ao highland barley industry of ultraviolet curable agent Dialkoxy acetophenones Epoxy acrylic ester solution (the wooden Chemical Co., Ltd. in Shanghai three, similarly hereinafter) Co., Ltd, similarly hereinafter), after stirring, is placed in 60 DEG C vacuum drying chamber in dry 24hor after, be placed in ultraviolet light polymerization function it is fluidizing fluid-bed in, fully solidification;
The epoxy acrylic ester solution added with ultraviolet curable agent Dialkoxy acetophenones is prepared as:By epoxy third Olefin(e) acid ester is 100 with the mass ratio of ultraviolet curable agent:5 mixing, stir 10-30min at normal temperatures, and speed of agitator is 30- 120rpm, obtains the epoxy acrylic ester solution added with ultraviolet curable agent;
Iron powder prepared by above-mentioned steps is sieved through vibratory sieve, after separation obtains the sample of 10~30 μm of particle diameter, is put It is standby after fully being dried in 40 DEG C of vacuum drying chamber, obtain modified soft magnetic powder.
2) preparation of part A:By the component of following weight portion:
Stirring mixes during pitch is added into reactor together with asphalt flux, bulking agent, curing agent, obtains having electricity The part A of the bituminous epoxy coating of electro-magnetic wave absorption function;
The asphalt flux is styrene.
The bulking agent is epoxidized soybean oil.
The curing agent is fatty amines curing agent.
3) preparation of part B:By the component of following weight portion:
Epoxy resin 300g;
Epoxy resin diluent 50g;
Epoxy resin and epoxy resin diluent are added in reactor together and stir mixing, obtain being inhaled with electromagnetic wave Receive the part B of the bituminous epoxy coating of function;
The epoxy resin is bisphenol A type epoxy resin.
The epoxy resin diluent is ethylene glycol diglycidylether.
4) the modified soft magnetic powders (i.e. C portion) of 855g are weighed, with 67g part As and 28g part Bs, normal-temperature reaction is added to 20min is stirred in kettle, after being well mixed, is poured into Teflon mold, pour into the sheet material of 1.0mm thickness, it is solid at room temperature After changing 72hor, that is, obtain the bituminous epoxy coating with electromagnetic wave absorption function.
Fig. 1 is a kind of suction ripple of the bituminous epoxy coating with electromagnetic wave absorption function prepared by the embodiment of the present invention 1 Performance test.From figure 1 it appears that the bituminous epoxy coating with electromagnetic wave absorption function prepared by the present invention is in X (8- 12GHz) and Ku (12-18GHz) wave band has good comprehensive absorbing property, its minimum reachable -13.92dB of reflectivity, in X and Ku wave band -10dB bandwidth has 8GHz.
Embodiment 2:
A kind of preparation method of the bituminous epoxy coating with electromagnetic wave absorption function, comprises the following steps:
1) preparation of modified soft magnetic powder:1000g carbonyl iron dusts are weighed, is placed in planetary ball mill, after ball milling 12hor, Dry, then after being placed in 450 DEG C of muffle furnace and carrying out inert gas shielding heat treatment 1hor, after taking-up is cooled to room temperature, It is standby;
1000g is disperseed into 30min through the carbonyl iron dust of above-mentioned treatment in ultrasonic oscillator in 500g absolute ethyl alcohols, point Poured into mixer after dissipating uniformly, and carry out strength mechanical agitation, obtain carbonyl iron dust mixed liquor (i.e. soft magnetic powder mixed liquor); Then the mixing of 50g silane resin acceptor kh-550s, 50g deionized waters and 100g absolute ethyl alcohols is taken, 10min is stirred, then by mixed liquor It is added dropwise in the mixer equipped with carbonyl iron dust mixed liquor, persistently stirs 4hor, finally fully washs sample with absolute ethyl alcohol Product, then filter, last 100 DEG C of vacuum drying 8hor, that is, obtain the iron powder that silane coupler surface was modified;
By through the iron powder of coupling processing and 1000g added with ultraviolet curable agent Dialkoxy acetophenones epoxy acrylate Solution, after stirring, is placed in after drying 24hor in 60 DEG C of vacuum drying chamber, is placed in the boiling with ultraviolet light polymerization function Rise in fluid bed, fully solidification obtains iron powder;
Iron powder prepared by above-mentioned steps is sieved through vibratory sieve, after separation obtains the sample of 10~30 μm of particle diameter, is put It is standby after fully being dried in 40 DEG C of vacuum drying chamber, obtain modified soft magnetic powder.
2) preparation of part A:By the component of following weight portion:
Stirring mixes during pitch is added into reactor together with asphalt flux, bulking agent, curing agent, obtains having electricity The part A of the bituminous epoxy coating of electro-magnetic wave absorption function;
The asphalt flux is methyl methacrylate.
The bulking agent is epoxy stearic acid.
The curing agent is alicyclic ring amine curing agent.
3) preparation of part B:By the component of following weight portion:
Epoxy resin 500g;
Epoxy resin diluent 500g;
Epoxy resin and epoxy resin diluent are added in reactor together and stir mixing, obtain being inhaled with electromagnetic wave Receive the part B of the bituminous epoxy coating of function;
The epoxy resin is bisphenol f type epoxy resin.
The epoxy resin diluent is phenyl glycidyl ether.
4) the bituminous epoxy coating C portion with electromagnetic wave absorption function that 950g is prepared by above-mentioned steps is weighed, with 71g Part A and 30g part Bs, are added in normal-temperature reaction kettle and stir 20min, after being well mixed, pour into Teflon mold, pour The sheet material of 2.0mm thickness is formed, after solidifying 72hor at room temperature, that is, the bituminous epoxy with electromagnetic wave absorption function is obtained and is applied Layer.
Fig. 2 is a kind of suction ripple of the bituminous epoxy coating with electromagnetic wave absorption function prepared by the embodiment of the present invention 2 Performance test.From figure 2 it can be seen that the bituminous epoxy coating with electromagnetic wave absorption function prepared by the present invention is in C-band (4-8GHz) has optimal comprehensive absorbing property, and its minimum reachable -29.14dB of reflectivity, -10dB bandwidth covers whole C ripples Section.
Embodiment 3:
A kind of preparation method of the bituminous epoxy coating with electromagnetic wave absorption function, comprises the following steps:
1) preparation of modified soft magnetic powder:1000g carbonyl iron dusts are weighed, is placed in planetary ball mill, after ball milling 12hor, Dry, then after being placed in 450 DEG C of muffle furnace and carrying out inert gas shielding heat treatment 1hor, after taking-up is cooled to room temperature, It is standby;
1000g is disperseed into 30min through the carbonyl iron dust of above-mentioned treatment in ultrasonic oscillator in 500g absolute ethyl alcohols, point Poured into mixer after dissipating uniformly, and carry out strength mechanical agitation, obtain carbonyl iron dust mixed liquor;Then 50g is taken silane coupled Agent KH-550,50g deionized water and 100g absolute ethyl alcohols mix, and stir 10min, then mixed liquor is added dropwise to equipped with carbonyl In the mixer of iron powder mixed liquor, 4hor is persistently stirred, finally with the abundant washing sample of absolute ethyl alcohol, then filtered, last 100 DEG C vacuum drying 8hor, that is, obtain the iron powder that silane coupler surface was modified;
By through the iron powder of coupling processing and 1000g added with ultraviolet curable agent Dialkoxy acetophenones epoxy acrylate Solution mixes, and after stirring, is placed in after drying 24hor in 60 DEG C of vacuum drying chamber, is placed in ultraviolet light polymerization function It is fluidizing fluid-bed in, fully solidification;
Iron powder prepared by above-mentioned steps is sieved through vibratory sieve, after separation obtains the sample of 10~30 μm of particle diameter, is put It is standby after fully being dried in 40 DEG C of vacuum drying chamber, obtain modified soft magnetic powder.
2) preparation of part A:By the component of following weight portion:
Stirring mixes during pitch is added into reactor together with asphalt flux, bulking agent, curing agent, obtains having electricity The part A of the bituminous epoxy coating of electro-magnetic wave absorption function;
The asphalt flux is EMA.
The bulking agent is epoxy methyl stearate.
The curing agent is aromatic amine curing agent.
3) preparation of part B:By the component of following weight portion:
Epoxy resin 1000g;
Epoxy resin diluent 1000g;
Epoxy resin and epoxy resin diluent are added in reactor together and stir mixing, obtain being inhaled with electromagnetic wave Receive the part B of the bituminous epoxy coating of function;
The epoxy resin is bisphenol-s epoxy resin.
The epoxy resin diluent is PVOH diglycidyl ether.
4) the bituminous epoxy coating C portion with electromagnetic wave absorption function that 1000g is prepared by above-mentioned steps is weighed, with 65g part As and 75g part Bs, are added in normal-temperature reaction kettle and stir 20min, after being well mixed, are coated in thick stainless of 2mm Surface of steel plate, is prepared into 2.0mm thickness sheet material prefabricated components, after solidifying 72hor at room temperature, that is, obtains with electro-magnetic wave absorption work( The bituminous epoxy coating of energy.
Fig. 3 is a kind of suction ripple of the bituminous epoxy coating with electromagnetic wave absorption function prepared by the embodiment of the present invention 3 Performance test.From figure 3, it can be seen that the bituminous epoxy coating with electromagnetic wave absorption function prepared by the present invention is in S and C ripples Section has optimal comprehensive absorbing property, its minimum reachable -16.77dB of reflectivity at 4GHz.
Embodiment 4:
A kind of preparation method of the bituminous epoxy coating with electromagnetic wave absorption function, comprises the following steps:
1) preparation of modified soft magnetic powder:1000g carbonyl iron dusts are weighed, is placed in planetary ball mill, after ball milling 12hor, Dry, then after being placed in 450 DEG C of muffle furnace and carrying out inert gas shielding heat treatment 1hor, after taking-up is cooled to room temperature, It is standby;
1000g is disperseed into 30min through the carbonyl iron dust of above-mentioned treatment in ultrasonic oscillator in 500g absolute ethyl alcohols, point Poured into mixer after dissipating uniformly, and carry out strength mechanical agitation, obtain carbonyl iron dust mixed liquor;Then 50g is taken silane coupled Agent KH-550,50g deionized water and 100g absolute ethyl alcohols mix, and stir 10min, then mixed liquor is added dropwise to equipped with carbonyl In the mixer of iron powder mixed liquor, 4hor is persistently stirred, finally with the abundant washing sample of absolute ethyl alcohol, then filtered, last 100 DEG C vacuum drying 8hor, that is, obtain the iron powder that silane coupler surface was modified;
By through the iron powder of coupling processing and 1000g added with ultraviolet curable agent Dialkoxy acetophenones epoxy acrylate Solution mixes, and after stirring, is placed in after drying 24hor in 60 DEG C of vacuum drying chamber, is placed in ultraviolet light polymerization function It is fluidizing fluid-bed in, fully solidification;
Iron powder prepared by above-mentioned steps is sieved through vibratory sieve, after separation obtains the sample of 10~30 μm of particle diameter, is put It is standby after fully being dried in 40 DEG C of vacuum drying chamber, obtain modified soft magnetic powder.
2) preparation of part A:By the component of following weight portion:
Stirring mixes during pitch is added into reactor together with asphalt flux, bulking agent, curing agent, obtains having electricity The part A of the bituminous epoxy coating of electro-magnetic wave absorption function;
The asphalt flux is propyl methacrylate, butyl methacrylate and 2-Propenoic acid, 2-methyl-, octyl ester, and quality is each Account for 1/3.
The bulking agent is epoxy Ethyl stearate, epoxy stearic acid propyl ester and epoxy butyl stearate, and quality respectively accounts for 1/ 3。
The curing agent is alicyclic ring amine curing agent, aromatic amine curing agent, polyamide-based curing agent, and quality respectively accounts for 1/3.
3) preparation of part B:By the component of following weight portion:
Epoxy resin 800g;
Epoxy resin diluent 800g;
Epoxy resin and epoxy resin diluent are added in reactor together and stir mixing, obtain being inhaled with electromagnetic wave Receive the part B of the bituminous epoxy coating of function;
The epoxy resin is bisphenol-s epoxy resin, bisphenol-A D-ring oxygen tree fat and resorcinol type epoxy, quality Respectively account for 1/3.
The epoxy resin diluent is polypropylene glycol diglycidyl ether, BDDE, 1,6- The mixing of hexanediol diglycidyl ether, quality respectively accounts for 1/3.
4) the bituminous epoxy coating C portion with electromagnetic wave absorption function that 1000g is prepared by above-mentioned steps is weighed, with 79g part As and 50g part Bs, are added in normal-temperature reaction kettle and stir 20min, after being well mixed, are coated in thick stainless of 2mm Surface of steel plate, is prepared into 4.0mm thickness sheet material prefabricated components, after solidifying 72hor at room temperature, that is, obtains with electro-magnetic wave absorption work( The bituminous epoxy coating of energy.
Fig. 4 is a kind of suction ripple of the bituminous epoxy coating with electromagnetic wave absorption function prepared by the embodiment of the present invention 4 Performance test.Figure 4, it is seen that the bituminous epoxy coating with electromagnetic wave absorption function prepared by the present invention is in S-band With optimal comprehensive absorbing property, the minimum reachable -12.05dB of reflectivity.
In the present invention, may be inserted into do not mentioned in some above-mentioned steps those skilled in the art accreditation be mixed into other The step of material.The species and addition of the material being mixed into do not have special limitation, the thing approved using those skilled in the art Matter.
Each raw material cited by the present invention is (such as:Sendust, iron sial evanohm or ferrite), and the present invention is respectively The bound of raw material, interval value, and the bound of technological parameter (such as temperature, time), interval value can realize this Invention, embodiment numerous to list herein.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (9)

1. a kind of bituminous epoxy coating with electromagnetic wave absorption function, it is characterised in that be made up of the part of A, B, C tri-;
The part A includes the component of following weight portion:
100 parts of pitch;
15 ~ 100 parts of asphalt flux;
10 ~ 50 parts of bulking agent;
5 ~ 50 parts of curing agent;
The part B includes the component of following weight portion:
30 ~ 100 parts of epoxy resin;
5 ~ 100 parts of epoxy resin diluent;
The C portion includes the component of following weight portion:
Modified 500 ~ 5000 parts of soft magnetic powder;
Wherein, the weight portion in part A, part B and C portion composition is on the basis of pitch weight portion;
Described modified soft magnetic powder is the carbonyl iron dust of platelet particle morphology, iron-nickel alloy, ferrocobalt, sendust, At least one in iron sial evanohm and ferrite, by any proportioning mixing during various mixing, 5~50 μm of particle diameter, Grain aspect ratio 30~100;
The method of modifying of the soft magnetic powder, comprises the following steps:
a)Soft magnetic powder is obtained into flakelike powder through mechanical ball mill and annealing heat-treats;
The step a)In annealing heat-treats temperature be 350 ~ 600 DEG C, heat treatment time be 1-8hr;During mechanical ball mill Between be 6 ~ 18 hr;
b)By soft magnetic powder:The mass ratio of absolute ethyl alcohol is 1000:100-500, by through the soft magnetic powder of above-mentioned treatment anhydrous Poured into mixer after ultrasonic disperse in ethanol and stirred, obtain soft magnetic powder mixed liquor;By soft magnetic powder:It is silane coupled Agent:Deionized water:The mass ratio of absolute ethyl alcohol is 1000:3-50:10-50:100-500, chooses silane coupler, deionized water And absolute ethyl alcohol, silane coupler, deionized water and absolute ethyl alcohol are mixed, after stirring, then mixed liquor is added dropwise over Stirred in the mixer equipped with soft magnetic powder mixed liquor, finally use absolute ethanol washing, filtering, dry, that is, obtain idol Soft magnetic powder after connection treatment;
c)It is 100 by the mass ratio of epoxy acrylate and ultraviolet curable agent:2-10, by ultraviolet curable agent and propylene oxide Acid esters mixes, and obtains the epoxy acrylic ester solution added with ultraviolet curable agent;Described ultraviolet curable agent be benzoin and Its derivative, benzil ketals derivative, Dialkoxy acetophenones, an amine alkyl phenones, acyl group phosphorous oxides, aryl peroxidating At least one in ester compounds, benzoyl formiate, by any proportioning mixing during various mixing;
By step a)Described soft magnetic powder is 1000 with the mass ratio of the epoxy acrylic ester solution added with ultraviolet curable agent: 100-1000, chooses the epoxy acrylic ester solution added with ultraviolet curable agent;By step b)It is soft after described coupling processing Magnetic powder mixes with the epoxy acrylic ester solution added with ultraviolet curable agent, after stirring, is placed in vacuum drying chamber and fills Divide drying, obtain coating the soft magnetic powder after epoxy acrylate treatment;
d)By step c)Soft magnetic powder after described cladding epoxy acrylate treatment is in the boiling with ultraviolet light polymerization function Rise in fluid bed, fully solidify, the soft magnetic powder after the epoxy acrylate treatment of the cladding after being solidified;
e)By step d)Described, the soft magnetic powder soft magnetic powder warp after the epoxy acrylate treatment of the cladding after being solidified Vibratory sieve is sieved, and after separation obtains the soft magnetic powder sample of 5 ~ 50 μm of particle diameter, is placed in vacuum drying chamber after fully drying It is standby, obtain modified soft magnetic powder.
2. a kind of bituminous epoxy coating with electromagnetic wave absorption function according to claim 1, it is characterised in that described Asphalt flux is styrene, methyl methacrylate, EMA, propyl methacrylate, methacrylic acid fourth Ester, 2-Propenoic acid, 2-methyl-, octyl ester, EHMA, GMA, dimethylaminoethyl acrylate methyl ammonia ethyl ester, first At least one in base Process Conditions of Cetane Acrylate, octadecyl methacrylate and their polymer, by arbitrarily matching somebody with somebody during various mixing Than mixing.
3. a kind of bituminous epoxy coating with electromagnetic wave absorption function according to claim 1, it is characterised in that described Bulking agent is epoxidized soybean oil, epoxystearic acid, methyl epoxy stearate, epoxystearic acid ethyl ester, epoxystearic acid propyl ester, ring Oxygen butyl stearate, epoxystearic acid pentyl ester, the own ester of epoxystearic acid, epoxystearic acid heptyl ester, octyl epoxy stearate, polycyclic At least one in oxidative ethane stearic acid, by any proportioning mixing during various mixing.
4. a kind of bituminous epoxy coating with electromagnetic wave absorption function according to claim 1, it is characterised in that described Curing agent is at least in fatty amines curing agent, alicyclic ring amine curing agent, aromatic amine curing agent, polyamide-based curing agent Kind, by any proportioning mixing during various mixing.
5. a kind of bituminous epoxy coating with electromagnetic wave absorption function according to claim 1, it is characterised in that described Epoxy resin be bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin, bisphenol-A D-ring oxygen tree fat, At least one in benzenediol epoxy resin, by any proportioning mixing during various mixing.
6. a kind of bituminous epoxy coating with electromagnetic wave absorption function according to claim 1, it is characterised in that described Epoxy resin diluent is ethylene glycol diglycidylether, phenyl glycidyl ether, polyethyleneglycol diglycidylether, poly- the third two Alcohol diglycidyl ether, BDDE, 1,6- hexanediol diglycidyl ethers, trimethylolpropane three contract At least one in water glycerin ether, glycerin triglycidyl ether, trihydroxymethylpropanyltri diglycidyl ether, presses during various mixing Any proportioning mixing.
7. a kind of preparation method of the bituminous epoxy coating with electromagnetic wave absorption function as claimed in claim 1, its feature exists In comprising the following steps:
1)By the component of following weight portion:
100 parts of pitch;
15 ~ 100 parts of asphalt flux;
10 ~ 50 parts of bulking agent;
5 ~ 50 parts of curing agent;
Stirring mixes during pitch is added into reactor together with asphalt flux, bulking agent, curing agent, obtains with electromagnetic wave The part A of the bituminous epoxy coating of absorption function;
By the component of following weight portion:
30 ~ 100 parts of epoxy resin;
5 ~ 100 parts of epoxy resin diluent;
Epoxy resin and epoxy resin diluent are added in reactor together and stir mixing, obtained with electro-magnetic wave absorption work( The part B of the bituminous epoxy coating of energy;
By the component of following weight portion:
Modified 500 ~ 5000 parts of soft magnetic powder, obtains C portion;
Wherein, the weight portion in part A, part B and C portion composition is on the basis of pitch weight portion;
2)Above-mentioned part A, part B and C portion agitating are mixed, the bituminous epoxy coating with electromagnetic wave absorption function is obtained.
8. the preparation method of a kind of bituminous epoxy coating with electromagnetic wave absorption function according to claim 7, it is special Levy and be, the step 1)In agitating incorporation time respectively be 5 ~ 120 min, agitating mixing temperature be room temperature ~ 180 DEG C, step 2)In agitating incorporation time be 5 ~ 30 min, agitating mixing temperature be room temperature.
9. a kind of application of the bituminous epoxy coating with electromagnetic wave absorption function as claimed in claim 1, it is characterised in that adopt With one of following two kinds:
1)By the bituminous epoxy coating with electromagnetic wave absorption function, the surface of the part that need to construct directly is coated on, in room temperature ~ 80 Solidify 0.5 ~ 120 hr at DEG C;
The coating thickness is 0.2 ~ 30 mm;
2)By the bituminous epoxy coating with electromagnetic wave absorption function, sheet material prefabricated component is prepared into, in solidification at room temperature ~ 80 DEG C After 0.5 ~ 120 hr, pasted and the article surface that need to be constructed using adhesive;
The thickness of the sheet material prefabricated component is 0.5 ~ 40mm.
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