CN107841123A - A kind of three-dimensional graphite alkenyl absorbing meta-material base material and preparation method thereof - Google Patents
A kind of three-dimensional graphite alkenyl absorbing meta-material base material and preparation method thereof Download PDFInfo
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- CN107841123A CN107841123A CN201610827830.0A CN201610827830A CN107841123A CN 107841123 A CN107841123 A CN 107841123A CN 201610827830 A CN201610827830 A CN 201610827830A CN 107841123 A CN107841123 A CN 107841123A
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention provides a kind of three-dimensional graphite alkenyl absorbing meta-material base material and preparation method thereof, this method includes：Three-dimensional grapheme is added in rubber, adds vulcanizing agent and auxiliary agent；It is put into banbury and is well mixed, obtains mixture；Mixture is put into hot-forming in hot press, dries, obtain three-dimensional graphite alkenyl absorbing meta-material base material.The three-dimensional graphite alkenyl absorbing meta-material base material realizes three-dimensional grapheme powder decentralization good in rubber, and the use of three-dimensional grapheme can regulate and control the electromagnetic parameter of absorbing meta-material base material, the wide-band high-selenium corn of Meta Materials base material, and the potential application material that can be equipped as following Stealth weapons can be achieved.
Description
Technical field
The present invention relates to Material Field, more particularly, to a kind of three-dimensional graphite alkenyl absorbing meta-material base material and its system
Preparation Method.
Background technology
Absorbing meta-material is to refer to effectively absorb incident electromagnetic wave and make a kind of material of its scatter attenuation, and it passes through material
Incident electromagnetic wave is changed into heat energy either other form of energy and reaches the mesh for inhaling ripple by a variety of loss mechanisms of material
's.There is huge application prospect administering electromagnetic pollution, manufacture stealth material etc..
Three-dimensional (3D) graphene typically refers to two dimension (2D) the graphene assembly with 3D structures, is graphene in recent years
The new type functional material of chemical field.2D graphene films are integrated into the assembly with 3D structures can be with Effective Regulation graphite
Electricity, optics, machinery, chemistry and the catalysis characteristics of alkene, therefore 3D grapheme materials not only have the spies such as in light weight, thickness of thin
Point, its three-dimensional porous micro/nano structure also makes it have the good characteristic such as flexible, compressible concurrently, added to absorbing meta-material
The potential application material that can be equipped as following Stealth weapons.These unique properties make 3D graphenes in materials science field
Receive much concern.
At present, stealth technology has become the important subject of national defense and military fields, and the research of new stealth material
It is then the important foundation and key of stealth technology development with application.Due to traditional absorbing meta-material exist density is high, thickness is big,
The problems such as stealth technology has much room for improvement, therefore development and exploitation change to the New Radar Absorbing Meta Materials such as graphene/three-dimensional grapheme
Obtain ever more important.
The content of the invention
The three-dimensional grapheme powder relatively low by the addition surface energy in rubber of the invention, and to three-dimensional grapheme cross-linked network
Network carries out structure design, realizes three-dimensional grapheme powder decentralization good in rubber, and the use of three-dimensional grapheme can
To regulate and control the electromagnetic parameter of absorbing meta-material base material, the wide-band high-selenium corn of Meta Materials base material can be achieved, and can be used as not
Carry out the potential application material of Stealth weapons equipment.Vulcanizing agent and auxiliary agent are added, it is hot-forming after well mixed to be had
The absorbing meta-material base material of stealthy effect.Rubber provides necessary toughness, HI high impact modulus etc. for base material.Auxiliary agent improves stone
Decentralization of the black alkene powder in rubber.And by adjusting the proportioning of each component, can prepare different-thickness, can attach
Lightweight three-dimensional graphite alkenyl absorbing meta-material base material.The three-dimensional graphite alkenyl absorbing meta-material of the present invention is overcoming tradition suction ripple
The Stealth Fighter of absorbing meta-material base material is improved while the problem of Meta Materials density is big, thickness is big.
The invention provides a kind of method for preparing three-dimensional graphite alkenyl absorbing meta-material base material, including：By three-dimensional graphite
Alkene is added in rubber, adds vulcanizing agent and auxiliary agent；It is put into banbury and is well mixed, obtains mixture；By the mixture
It is put into hot-forming in hot press, dries, obtain the three-dimensional graphite alkenyl absorbing meta-material base material.
In the above-mentioned methods, wherein, the rubber is included in polyurethane, ethylene propylene diene rubber, silicon rubber, butyl rubber
It is one or more.
In the above-mentioned methods, wherein, the vulcanizing agent includes one or both of cumyl peroxide and sulphur.
In the above-mentioned methods, wherein, the auxiliary agent includes one or both of stearic acid, silane coupler.
In the above-mentioned methods, wherein, rubber, three-dimensional grapheme, the mass ratio of vulcanizing agent and auxiliary agent are 100：0.1~5：1
~6：0.5~8.
In the above-mentioned methods, wherein, the temperature of the banbury is 60~100 DEG C.
In the above-mentioned methods, wherein, the hot-forming temperature of the hot press is 150~200 DEG C.
In the above-mentioned methods, wherein, the hot-forming pressure of the hot press is 5~25MPa.
In the above-mentioned methods, wherein, the hot press hot-forming time is 10~60min.
Present invention also offers a kind of three-dimensional graphite alkenyl absorbing meta-material base material prepared according to above method.
By the method provided by the invention for preparing three-dimensional graphite alkenyl absorbing meta-material base material, obtain that there is stealthy work
Absorbing meta-material base material, the potential application material that can be equipped as following Stealth weapons.And due to three-dimensional grapheme material
The good characteristic such as flexible, compressible of the in light weight, thickness of thin of material and its three-dimensional porous micro/nano structure so that prepare
Three-dimensional graphite alkenyl absorbing meta-material base material have the advantages that density is small, in light weight.In addition, the three-dimensional graphite alkenyl of the present invention
The absorbing property of absorbing meta-material base material is significantly better than traditional absorbing meta-material.
Brief description of the drawings
Fig. 1 is the preparation flow schematic diagram of three-dimensional graphite alkenyl absorbing meta-material base material.
Embodiment
The following examples can make those skilled in the art that the present invention be more fully understood, but not limit in any way
The present invention.
The present invention three-dimensional graphite alkenyl absorbing meta-material base material preparation method, from three-dimensional grapheme powder, rubber,
Vulcanizing agent and auxiliary agent mixing, are well mixed, obtained mixture is put into hot-forming in hot press, dries, obtains in banbury
To three-dimensional graphite alkenyl absorbing meta-material base material.By setting three-dimensional grapheme powder, rubber, vulcanizing agent and the ratio of auxiliary agent,
So that the relatively low three-dimensional grapheme powder of surface energy has good decentralization in rubber base material, and different thickness can be prepared
Lightweight three-dimensional graphite alkenyl absorbing meta-material base material spending, can attaching.
Three-dimensional grapheme powder is added in rubber, and adds vulcanizing agent and auxiliary agent, rubber, three-dimensional grapheme powder,
The mass ratio of vulcanizing agent and auxiliary agent is 100：0.1~5：1~6：0.5~8；Rubber is polyurethane, ethylene propylene diene rubber, silicon rubber
One or more in glue, butyl rubber；Vulcanizing agent is one or both of cumyl peroxide and sulphur；Auxiliary agent is hard
One or both of resin acid, silane coupler.
It is put into 60~100 DEG C of banbury and is well mixed, hot press is put into after obtaining mixture, in 5~25MPa pressure
Power, 10~60min of hot pressing is molded at a temperature of 150~200 DEG C, is dried, is obtained three-dimensional graphite alkenyl absorbing meta-material base material.
Embodiment one
0.1g three-dimensional grapheme powder is added in 100g polyurethane, and it is hard to add 2g cumyl peroxides, 0.5g
Resin acid and 0.5g silane couplers；
It is put into 70 DEG C of banbury and is well mixed, hot press is put into after obtaining mixture, pressure in 25MPa, 170 DEG C
At a temperature of hot pressing 10min be molded, dry, obtain three-dimensional graphite alkenyl absorbing meta-material base material.
Embodiment two
1g three-dimensional grapheme powder is added in 100g ethylene propylene diene rubbers, and add 3g cumyl peroxides,
1.5g stearic acid and 1.5g silane couplers；
It is put into 70 DEG C of banbury and is well mixed, hot press is put into after obtaining mixture, pressure in 25MPa, 170 DEG C
At a temperature of hot pressing 10min be molded, dry, obtain three-dimensional graphite alkenyl absorbing meta-material base material.
Embodiment three
3g three-dimensional grapheme powder is added in 100g silicon rubber, and adds 4g cumyl peroxides, 3g stearic acid
With 3g silane couplers；
It is put into 70 DEG C of banbury and is well mixed, hot press is put into after obtaining mixture, pressure in 25MPa, 180 DEG C
At a temperature of hot pressing 40min be molded, dry, obtain three-dimensional graphite alkenyl absorbing meta-material base material.
Example IV
5g three-dimensional grapheme powder is added in 100g butyl rubbers, and it is stearic to add 6g cumyl peroxides, 4g
Acid and 4g silane couplers；
It is put into 70 DEG C of banbury and is well mixed, hot press is put into after obtaining mixture, pressure in 25MPa, 190 DEG C
At a temperature of hot pressing 60min be molded, dry, obtain three-dimensional graphite alkenyl absorbing meta-material base material.
Embodiment five
4g three-dimensional grapheme powder is added in 100g polyurethane, and adds 2g sulphur and 3g stearic acid；
It is put into 60 DEG C of banbury and is well mixed, hot press is put into after obtaining mixture, pressure in 5MPa, 200 DEG C
At a temperature of hot pressing 60min be molded, obtain three-dimensional graphite alkenyl absorbing meta-material base material.
Embodiment six
0.5g three-dimensional grapheme powder is added in 100g silicon rubber, and adds 1g cumyl peroxides and 0.5g silicon
Alkane coupling agent；
It is put into 100 DEG C of banbury and is well mixed, hot press is put into after obtaining mixture, pressure in 15MPa, 150
Hot pressing 20min is molded at a temperature of DEG C, obtains three-dimensional graphite alkenyl absorbing meta-material base material.
The three-dimensional graphite alkenyl absorbing meta-material base material that embodiment one to six obtains is cut into 300mm*300mm rule
Lattice, darkroom test reflectivity, the result of obtained reflection loss are as follows：
Table 1, test result
| Test frequency | Reflection loss | |
| Embodiment one | 17-18Ghz | -3dB |
| Embodiment two | 10-14Ghz | -5dB |
| Embodiment three | 5-8Ghz | -8dB |
| Example IV | 3-5Ghz | -10dB |
| Embodiment five | 4-7Ghz | -9dB |
| Embodiment six | 12-15Ghz | -4dB |
From table 1, the present invention obtains three-dimensional graphite alkenyl absorbing meta-material base material in 300mm*300mm specification,
Reflection loss in the range of 3-18Ghz absorption frequency is both less than -3dB, and traditional absorbing meta-material is in 3-18Ghz frequency
Under reflection loss be more than -2dB.Therefore, the absorbing property of three-dimensional graphite alkenyl absorbing meta-material base material of the invention is significantly excellent
In traditional absorbing meta-material.And 3~18GHz is very important radar detection wave band, and the weight of stealth technology research
Point, therefore three-dimensional graphite alkenyl absorbing meta-material base material prepared by the present invention has good stealthy effect.
It will be understood by those skilled in the art that above example is only exemplary embodiment, in the spirit without departing substantially from the present invention
In the case of scope, a variety of changes can be carried out, replaces and changes.
Claims (10)
- A kind of 1. method for preparing three-dimensional graphite alkenyl absorbing meta-material base material, it is characterised in that including：Three-dimensional grapheme is added in rubber, adds vulcanizing agent and auxiliary agent；It is put into banbury and is well mixed, obtains mixture；The mixture is put into hot-forming in hot press, dries, obtain the three-dimensional graphite alkenyl absorbing meta-material base material.
- 2. according to the method for claim 1, it is characterised in that the rubber includes polyurethane, ethylene propylene diene rubber, silicon rubber One or more in glue, butyl rubber.
- 3. according to the method for claim 1, it is characterised in that the vulcanizing agent is included in cumyl peroxide and sulphur One or two.
- 4. according to the method for claim 1, it is characterised in that the auxiliary agent includes one in stearic acid, silane coupler Kind or two kinds.
- 5. according to the method for claim 1, it is characterised in that rubber, three-dimensional grapheme, the mass ratio of vulcanizing agent and auxiliary agent For 100：0.1~5：1~6：0.5~8.
- 6. according to the method for claim 1, it is characterised in that the temperature of the banbury is 60~100 DEG C.
- 7. according to the method for claim 1, it is characterised in that the hot-forming temperature of the hot press is 150~200 ℃。
- 8. according to the method for claim 1, it is characterised in that the hot-forming pressure of the hot press is 5~25MPa.
- 9. according to the method for claim 1, it is characterised in that the hot press hot-forming time is 10~60min.
- A kind of 10. three-dimensional graphite alkenyl absorbing meta-material base material prepared by method according to any one of claim 1-9.
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| CN107841123B CN107841123B (en) | 2022-03-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114685936A (en) * | 2020-12-25 | 2022-07-01 | 洛阳尖端技术研究院 | Graphene-based wave-absorbing honeycomb and preparation method thereof |
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Cited By (1)
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